./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version fca748b1 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-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.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 626f3da6fd18561761a79d5d72b6e4952ec90284e3abc32807b89f761ebfb898 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 22:09:58,735 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 22:09:58,817 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-20 22:09:58,824 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 22:09:58,825 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 22:09:58,857 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 22:09:58,858 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 22:09:58,860 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 22:09:58,861 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 22:09:58,861 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 22:09:58,862 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 22:09:58,862 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 22:09:58,863 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 22:09:58,863 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-20 22:09:58,863 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-20 22:09:58,866 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-20 22:09:58,867 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-20 22:09:58,867 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-20 22:09:58,867 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-20 22:09:58,868 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 22:09:58,868 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-20 22:09:58,872 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 22:09:58,873 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 22:09:58,873 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-20 22:09:58,873 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-20 22:09:58,873 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-20 22:09:58,874 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 22:09:58,874 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 22:09:58,874 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 22:09:58,874 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-20 22:09:58,874 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 22:09:58,875 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 22:09:58,875 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 22:09:58,875 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 22:09:58,876 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 22:09:58,878 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-20 22:09:58,878 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 626f3da6fd18561761a79d5d72b6e4952ec90284e3abc32807b89f761ebfb898 [2024-11-20 22:09:59,153 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 22:09:59,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 22:09:59,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 22:09:59,183 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 22:09:59,184 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 22:09:59,185 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c [2024-11-20 22:10:00,702 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 22:10:00,862 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 22:10:00,863 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c [2024-11-20 22:10:00,870 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e24b32c90/2c6d7d9a40a64ae6bbd05223d99ff3af/FLAG89f0fc4d8 [2024-11-20 22:10:01,266 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e24b32c90/2c6d7d9a40a64ae6bbd05223d99ff3af [2024-11-20 22:10:01,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 22:10:01,270 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 22:10:01,271 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 22:10:01,271 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 22:10:01,277 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 22:10:01,278 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:10:01" (1/1) ... [2024-11-20 22:10:01,279 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aa41582 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:10:01, skipping insertion in model container [2024-11-20 22:10:01,279 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:10:01" (1/1) ... [2024-11-20 22:10:01,294 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 22:10:01,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 22:10:01,468 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 22:10:01,481 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 22:10:01,497 INFO L204 MainTranslator]: Completed translation [2024-11-20 22:10:01,498 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:10:01 WrapperNode [2024-11-20 22:10:01,498 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 22:10:01,499 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 22:10:01,499 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 22:10:01,499 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 22:10:01,506 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:10:01" (1/1) ... [2024-11-20 22:10:01,510 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:10:01" (1/1) ... [2024-11-20 22:10:01,525 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2024-11-20 22:10:01,526 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 22:10:01,528 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 22:10:01,528 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 22:10:01,528 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 22:10:01,538 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:10:01" (1/1) ... [2024-11-20 22:10:01,539 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:10:01" (1/1) ... [2024-11-20 22:10:01,539 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:10:01" (1/1) ... [2024-11-20 22:10:01,545 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-20 22:10:01,545 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:10:01" (1/1) ... [2024-11-20 22:10:01,545 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:10:01" (1/1) ... [2024-11-20 22:10:01,547 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:10:01" (1/1) ... [2024-11-20 22:10:01,551 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:10:01" (1/1) ... [2024-11-20 22:10:01,551 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:10:01" (1/1) ... [2024-11-20 22:10:01,552 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:10:01" (1/1) ... [2024-11-20 22:10:01,553 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 22:10:01,554 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 22:10:01,554 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 22:10:01,554 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 22:10:01,555 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:10:01" (1/1) ... [2024-11-20 22:10:01,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:01,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:10:01,590 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:10:01,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-20 22:10:01,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 22:10:01,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 22:10:01,709 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 22:10:01,711 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 22:10:01,762 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-11-20 22:10:01,763 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 22:10:01,773 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 22:10:01,773 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 22:10:01,774 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:10:01 BoogieIcfgContainer [2024-11-20 22:10:01,774 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 22:10:01,775 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-20 22:10:01,775 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-20 22:10:01,779 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-20 22:10:01,780 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-20 22:10:01,780 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 10:10:01" (1/3) ... [2024-11-20 22:10:01,780 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1400b20c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:10:01, skipping insertion in model container [2024-11-20 22:10:01,781 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-20 22:10:01,781 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:10:01" (2/3) ... [2024-11-20 22:10:01,781 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1400b20c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:10:01, skipping insertion in model container [2024-11-20 22:10:01,781 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-20 22:10:01,781 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:10:01" (3/3) ... [2024-11-20 22:10:01,782 INFO L332 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig1.c [2024-11-20 22:10:01,838 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-20 22:10:01,838 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-20 22:10:01,838 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-20 22:10:01,838 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-20 22:10:01,839 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-20 22:10:01,839 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-20 22:10:01,839 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-20 22:10:01,840 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-20 22:10:01,844 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:10:01,860 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-20 22:10:01,860 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:10:01,861 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:10:01,864 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-20 22:10:01,865 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-20 22:10:01,865 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-20 22:10:01,865 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:10:01,866 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-20 22:10:01,866 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:10:01,866 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:10:01,866 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-20 22:10:01,866 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-20 22:10:01,872 INFO L745 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 2#L19-2true [2024-11-20 22:10:01,872 INFO L747 eck$LassoCheckResult]: Loop: 2#L19-2true assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 8#L19true assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~y~0#1 := main_~y~0#1 - 1; 2#L19-2true [2024-11-20 22:10:01,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:10:01,877 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-20 22:10:01,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:10:01,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652766567] [2024-11-20 22:10:01,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:10:01,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:10:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:10:01,956 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:10:01,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:10:01,979 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:10:01,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:10:01,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2024-11-20 22:10:01,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:10:01,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453565495] [2024-11-20 22:10:01,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:10:01,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:10:02,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:10:02,001 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:10:02,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:10:02,010 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:10:02,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:10:02,012 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2024-11-20 22:10:02,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:10:02,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092784913] [2024-11-20 22:10:02,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:10:02,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:10:02,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:10:02,026 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:10:02,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:10:02,034 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:10:02,135 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:10:02,136 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:10:02,136 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:10:02,136 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:10:02,136 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-20 22:10:02,136 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:02,136 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:10:02,136 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:10:02,137 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration1_Loop [2024-11-20 22:10:02,137 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:10:02,137 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:10:02,168 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:02,177 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:02,183 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:02,187 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:02,195 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:02,200 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:02,266 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:10:02,267 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-20 22:10:02,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:02,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:10:02,272 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:10:02,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-20 22:10:02,275 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:10:02,276 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:10:02,293 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:10:02,293 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3#1=0} Honda state: {ULTIMATE.start_main_#t~nondet3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-20 22:10:02,299 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-20 22:10:02,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:02,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:10:02,301 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:10:02,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-20 22:10:02,304 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:10:02,304 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:10:02,324 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:10:02,324 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: [] [2024-11-20 22:10:02,330 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-20 22:10:02,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:02,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:10:02,332 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:10:02,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-20 22:10:02,334 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:10:02,335 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:10:02,354 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:10:02,354 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: [] [2024-11-20 22:10:02,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-20 22:10:02,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:02,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:10:02,363 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:10:02,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-20 22:10:02,366 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:10:02,366 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:10:02,393 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-20 22:10:02,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:02,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:10:02,397 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:10:02,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-20 22:10:02,401 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-20 22:10:02,402 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:10:02,440 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-20 22:10:02,446 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-20 22:10:02,447 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:10:02,448 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:10:02,448 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:10:02,448 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:10:02,448 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-20 22:10:02,448 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:02,448 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:10:02,449 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:10:02,449 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration1_Loop [2024-11-20 22:10:02,449 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:10:02,449 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:10:02,454 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:02,458 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:02,463 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:02,470 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:02,484 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:02,493 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:02,549 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:10:02,556 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-20 22:10:02,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:02,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:10:02,560 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:10:02,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-20 22:10:02,564 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-20 22:10:02,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:10:02,577 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-20 22:10:02,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:10:02,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:10:02,578 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:10:02,581 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-20 22:10:02,581 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-20 22:10:02,585 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-20 22:10:02,592 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-20 22:10:02,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:02,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:10:02,596 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:10:02,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-20 22:10:02,598 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-20 22:10:02,611 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:10:02,612 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:10:02,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:10:02,612 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:10:02,616 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-20 22:10:02,616 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-20 22:10:02,623 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-20 22:10:02,631 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-20 22:10:02,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:02,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:10:02,634 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:10:02,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-20 22:10:02,637 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-20 22:10:02,650 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:10:02,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:10:02,650 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:10:02,650 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:10:02,653 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-20 22:10:02,653 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-20 22:10:02,659 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-20 22:10:02,667 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-20 22:10:02,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:02,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:10:02,670 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:10:02,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-20 22:10:02,673 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-20 22:10:02,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:10:02,686 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-20 22:10:02,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:10:02,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:10:02,687 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:10:02,689 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-20 22:10:02,689 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-20 22:10:02,692 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-20 22:10:02,699 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-20 22:10:02,699 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-20 22:10:02,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:02,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:10:02,709 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:10:02,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-20 22:10:02,720 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-20 22:10:02,721 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-20 22:10:02,721 INFO L474 LassoAnalysis]: Proved termination. [2024-11-20 22:10:02,722 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-11-20 22:10:02,730 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-20 22:10:02,733 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-20 22:10:02,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:10:02,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:10:02,768 WARN L253 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 22:10:02,769 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:10:02,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:10:02,784 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:10:02,785 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:10:02,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:10:02,831 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-20 22:10:02,833 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:10:02,874 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 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). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 18 states and 25 transitions. Complement of second has 6 states. [2024-11-20 22:10:02,876 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 [2024-11-20 22:10:02,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:10:02,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2024-11-20 22:10:02,884 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 2 letters. [2024-11-20 22:10:02,885 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:10:02,885 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 4 letters. Loop has 2 letters. [2024-11-20 22:10:02,886 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:10:02,886 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 4 letters. [2024-11-20 22:10:02,886 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:10:02,887 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 25 transitions. [2024-11-20 22:10:02,888 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-20 22:10:02,891 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 9 states and 12 transitions. [2024-11-20 22:10:02,892 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-11-20 22:10:02,893 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-11-20 22:10:02,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2024-11-20 22:10:02,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-20 22:10:02,893 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2024-11-20 22:10:02,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2024-11-20 22:10:02,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2024-11-20 22:10:02,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 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) [2024-11-20 22:10:02,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2024-11-20 22:10:02,917 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-11-20 22:10:02,917 INFO L425 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-11-20 22:10:02,917 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-20 22:10:02,917 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2024-11-20 22:10:02,918 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-20 22:10:02,918 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:10:02,918 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:10:02,918 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-20 22:10:02,918 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-20 22:10:02,919 INFO L745 eck$LassoCheckResult]: Stem: 66#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 67#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_#t~nondet2#1, main_#t~nondet3#1, main_~x~0#1, main_~y~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; 69#L19-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 63#L19 [2024-11-20 22:10:02,919 INFO L747 eck$LassoCheckResult]: Loop: 63#L19 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1; 62#L19-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 63#L19 [2024-11-20 22:10:02,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:10:02,920 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2024-11-20 22:10:02,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:10:02,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450967880] [2024-11-20 22:10:02,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:10:02,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:10:02,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:10:02,925 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:10:02,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:10:02,927 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:10:02,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:10:02,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2024-11-20 22:10:02,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:10:02,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270227607] [2024-11-20 22:10:02,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:10:02,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:10:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:10:02,934 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:10:02,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:10:02,938 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:10:02,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:10:02,938 INFO L85 PathProgramCache]: Analyzing trace with hash 28699749, now seen corresponding path program 1 times [2024-11-20 22:10:02,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:10:02,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189004675] [2024-11-20 22:10:02,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:10:02,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:10:02,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:10:02,944 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:10:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:10:02,948 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:10:02,980 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:10:02,980 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:10:02,981 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:10:02,981 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:10:02,981 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-20 22:10:02,981 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:02,981 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:10:02,981 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:10:02,981 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration2_Loop [2024-11-20 22:10:02,981 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:10:02,981 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:10:02,983 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:02,985 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:02,992 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:02,998 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:03,001 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:03,059 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:10:03,059 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-20 22:10:03,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:03,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:10:03,062 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:10:03,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-20 22:10:03,067 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:10:03,068 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:10:03,091 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:10:03,091 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: [] [2024-11-20 22:10:03,099 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-20 22:10:03,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:03,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:10:03,103 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:10:03,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-20 22:10:03,106 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:10:03,106 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:10:03,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-20 22:10:03,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:03,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:10:03,131 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:10:03,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-20 22:10:03,134 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-20 22:10:03,134 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:10:03,184 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-20 22:10:03,190 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-20 22:10:03,190 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:10:03,190 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:10:03,190 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:10:03,190 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:10:03,190 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-20 22:10:03,191 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:03,191 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:10:03,191 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:10:03,191 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration2_Loop [2024-11-20 22:10:03,191 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:10:03,191 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:10:03,193 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:03,200 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:03,212 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:03,215 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:03,219 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:03,268 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:10:03,269 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-20 22:10:03,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:03,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:10:03,271 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:10:03,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-20 22:10:03,274 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-20 22:10:03,286 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:10:03,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:10:03,287 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:10:03,287 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:10:03,291 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-20 22:10:03,291 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-20 22:10:03,297 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-20 22:10:03,305 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-20 22:10:03,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:03,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:10:03,309 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:10:03,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-20 22:10:03,312 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-20 22:10:03,324 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:10:03,325 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-20 22:10:03,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:10:03,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:10:03,325 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:10:03,326 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-20 22:10:03,326 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-20 22:10:03,329 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-20 22:10:03,331 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-20 22:10:03,331 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-20 22:10:03,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:03,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:10:03,335 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:10:03,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-20 22:10:03,337 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-20 22:10:03,337 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-20 22:10:03,338 INFO L474 LassoAnalysis]: Proved termination. [2024-11-20 22:10:03,338 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-11-20 22:10:03,350 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-20 22:10:03,351 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-20 22:10:03,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:10:03,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:10:03,368 INFO L255 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 22:10:03,369 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:10:03,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:10:03,377 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:10:03,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:10:03,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:10:03,394 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-20 22:10:03,394 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 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) [2024-11-20 22:10:03,410 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. 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 15 states and 20 transitions. Complement of second has 5 states. [2024-11-20 22:10:03,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-20 22:10:03,411 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) [2024-11-20 22:10:03,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-11-20 22:10:03,412 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2024-11-20 22:10:03,412 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:10:03,412 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2024-11-20 22:10:03,412 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:10:03,412 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 4 letters. [2024-11-20 22:10:03,412 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:10:03,412 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2024-11-20 22:10:03,413 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-20 22:10:03,413 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 10 states and 13 transitions. [2024-11-20 22:10:03,413 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-11-20 22:10:03,413 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2024-11-20 22:10:03,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2024-11-20 22:10:03,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-20 22:10:03,414 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2024-11-20 22:10:03,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2024-11-20 22:10:03,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 8. [2024-11-20 22:10:03,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:10:03,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2024-11-20 22:10:03,415 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2024-11-20 22:10:03,415 INFO L425 stractBuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2024-11-20 22:10:03,415 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-20 22:10:03,415 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2024-11-20 22:10:03,415 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-20 22:10:03,416 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:10:03,416 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:10:03,416 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2024-11-20 22:10:03,416 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-20 22:10:03,416 INFO L745 eck$LassoCheckResult]: Stem: 123#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 124#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 120#L19-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 121#L19 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~y~0#1 := main_~y~0#1 - 1; 127#L19-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 125#L19 [2024-11-20 22:10:03,416 INFO L747 eck$LassoCheckResult]: Loop: 125#L19 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1; 126#L19-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0);havoc main_#t~nondet2#1; 125#L19 [2024-11-20 22:10:03,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:10:03,417 INFO L85 PathProgramCache]: Analyzing trace with hash 28699811, now seen corresponding path program 2 times [2024-11-20 22:10:03,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:10:03,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309625170] [2024-11-20 22:10:03,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:10:03,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:10:03,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:10:03,422 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:10:03,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:10:03,428 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:10:03,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:10:03,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 2 times [2024-11-20 22:10:03,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:10:03,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099483362] [2024-11-20 22:10:03,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:10:03,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:10:03,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:10:03,438 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:10:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:10:03,444 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:10:03,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:10:03,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1810715040, now seen corresponding path program 1 times [2024-11-20 22:10:03,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:10:03,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096928788] [2024-11-20 22:10:03,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:10:03,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:10:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:10:03,458 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:10:03,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:10:03,465 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:10:03,495 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:10:03,495 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:10:03,495 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:10:03,495 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:10:03,495 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-20 22:10:03,495 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:03,495 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:10:03,495 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:10:03,495 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration3_Loop [2024-11-20 22:10:03,495 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:10:03,495 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:10:03,496 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:03,500 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:03,503 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:03,505 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:03,513 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:03,563 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:10:03,563 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-20 22:10:03,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:03,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:10:03,565 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:10:03,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-20 22:10:03,567 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:10:03,567 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:10:03,590 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:10:03,590 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=-1} Honda state: {ULTIMATE.start_main_#t~nondet2#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-20 22:10:03,598 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-20 22:10:03,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:03,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:10:03,600 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:10:03,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-20 22:10:03,603 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:10:03,604 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:10:03,623 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:10:03,623 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=1} Honda state: {ULTIMATE.start_main_~y~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-20 22:10:03,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-20 22:10:03,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:03,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:10:03,630 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:10:03,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-20 22:10:03,633 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:10:03,633 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:10:03,652 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-20 22:10:03,652 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: [] [2024-11-20 22:10:03,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-11-20 22:10:03,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:03,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:10:03,661 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:10:03,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-20 22:10:03,663 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-20 22:10:03,663 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:10:03,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-11-20 22:10:03,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:03,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:10:03,688 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:10:03,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-20 22:10:03,691 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-20 22:10:03,691 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-20 22:10:03,733 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-20 22:10:03,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-11-20 22:10:03,738 INFO L204 LassoAnalysis]: Preferences: [2024-11-20 22:10:03,738 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-20 22:10:03,738 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-20 22:10:03,738 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-20 22:10:03,738 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-20 22:10:03,738 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:03,738 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-20 22:10:03,738 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-20 22:10:03,738 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig1.c_Iteration3_Loop [2024-11-20 22:10:03,738 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-20 22:10:03,738 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-20 22:10:03,740 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:03,745 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:03,748 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:03,754 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:03,759 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-20 22:10:03,806 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-20 22:10:03,807 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-20 22:10:03,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:03,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:10:03,811 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:10:03,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-20 22:10:03,813 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-20 22:10:03,825 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:10:03,825 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-20 22:10:03,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:10:03,826 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-20 22:10:03,826 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:10:03,827 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-11-20 22:10:03,827 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-20 22:10:03,831 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-20 22:10:03,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-20 22:10:03,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:03,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:10:03,842 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:10:03,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-20 22:10:03,844 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-20 22:10:03,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:10:03,857 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-20 22:10:03,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:10:03,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:10:03,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:10:03,858 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-20 22:10:03,858 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-20 22:10:03,860 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-20 22:10:03,868 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-11-20 22:10:03,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:03,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:10:03,870 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:10:03,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-20 22:10:03,873 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-20 22:10:03,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-20 22:10:03,887 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-20 22:10:03,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-20 22:10:03,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-20 22:10:03,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-20 22:10:03,888 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-20 22:10:03,888 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-20 22:10:03,891 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-20 22:10:03,894 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-20 22:10:03,894 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-20 22:10:03,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:10:03,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:10:03,897 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-20 22:10:03,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-20 22:10:03,899 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-20 22:10:03,899 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-20 22:10:03,900 INFO L474 LassoAnalysis]: Proved termination. [2024-11-20 22:10:03,900 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-11-20 22:10:03,907 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-11-20 22:10:03,907 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-20 22:10:03,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:10:03,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:10:03,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 22:10:03,929 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:10:03,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:10:03,943 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:10:03,944 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:10:03,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:10:03,956 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-20 22:10:03,956 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:10:03,972 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 11 states and 14 transitions. Complement of second has 5 states. [2024-11-20 22:10:03,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-20 22:10:03,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:10:03,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-11-20 22:10:03,974 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2024-11-20 22:10:03,974 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:10:03,974 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-20 22:10:03,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:10:03,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:10:03,991 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 22:10:03,992 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:10:04,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:10:04,003 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:10:04,004 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:10:04,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:10:04,015 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-20 22:10:04,015 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:10:04,031 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 11 states and 14 transitions. Complement of second has 5 states. [2024-11-20 22:10:04,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-20 22:10:04,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:10:04,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-11-20 22:10:04,034 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2024-11-20 22:10:04,034 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:10:04,034 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-20 22:10:04,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:10:04,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:10:04,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 22:10:04,055 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:10:04,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:10:04,065 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:10:04,066 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:10:04,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:10:04,077 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-20 22:10:04,077 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:10:04,096 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 11 states and 14 transitions. Complement of second has 4 states. [2024-11-20 22:10:04,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-20 22:10:04,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:10:04,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-11-20 22:10:04,097 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2024-11-20 22:10:04,097 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:10:04,097 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2024-11-20 22:10:04,098 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:10:04,098 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2024-11-20 22:10:04,098 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-20 22:10:04,098 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2024-11-20 22:10:04,098 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-20 22:10:04,099 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2024-11-20 22:10:04,099 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-20 22:10:04,099 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-20 22:10:04,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-20 22:10:04,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-20 22:10:04,099 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-20 22:10:04,099 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-20 22:10:04,099 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-20 22:10:04,099 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-20 22:10:04,099 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-20 22:10:04,099 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-20 22:10:04,099 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-20 22:10:04,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 10:10:04 BoogieIcfgContainer [2024-11-20 22:10:04,106 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-20 22:10:04,107 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 22:10:04,107 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 22:10:04,107 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 22:10:04,107 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:10:01" (3/4) ... [2024-11-20 22:10:04,110 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-20 22:10:04,111 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 22:10:04,111 INFO L158 Benchmark]: Toolchain (without parser) took 2840.75ms. Allocated memory was 153.1MB in the beginning and 213.9MB in the end (delta: 60.8MB). Free memory was 98.5MB in the beginning and 71.7MB in the end (delta: 26.8MB). Peak memory consumption was 89.2MB. Max. memory is 16.1GB. [2024-11-20 22:10:04,112 INFO L158 Benchmark]: CDTParser took 0.68ms. Allocated memory is still 153.1MB. Free memory is still 113.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 22:10:04,112 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.12ms. Allocated memory is still 153.1MB. Free memory was 98.2MB in the beginning and 87.1MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-20 22:10:04,112 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.80ms. Allocated memory is still 153.1MB. Free memory was 87.1MB in the beginning and 85.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 22:10:04,113 INFO L158 Benchmark]: Boogie Preprocessor took 24.97ms. Allocated memory is still 153.1MB. Free memory was 85.5MB in the beginning and 84.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 22:10:04,113 INFO L158 Benchmark]: RCFGBuilder took 220.55ms. Allocated memory is still 153.1MB. Free memory was 84.2MB in the beginning and 75.4MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-20 22:10:04,113 INFO L158 Benchmark]: BuchiAutomizer took 2331.34ms. Allocated memory was 153.1MB in the beginning and 213.9MB in the end (delta: 60.8MB). Free memory was 75.0MB in the beginning and 72.8MB in the end (delta: 2.2MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2024-11-20 22:10:04,114 INFO L158 Benchmark]: Witness Printer took 3.72ms. Allocated memory is still 213.9MB. Free memory was 72.8MB in the beginning and 71.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 22:10:04,119 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68ms. Allocated memory is still 153.1MB. Free memory is still 113.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 227.12ms. Allocated memory is still 153.1MB. Free memory was 98.2MB in the beginning and 87.1MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.80ms. Allocated memory is still 153.1MB. Free memory was 87.1MB in the beginning and 85.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.97ms. Allocated memory is still 153.1MB. Free memory was 85.5MB in the beginning and 84.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 220.55ms. Allocated memory is still 153.1MB. Free memory was 84.2MB in the beginning and 75.4MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2331.34ms. Allocated memory was 153.1MB in the beginning and 213.9MB in the end (delta: 60.8MB). Free memory was 75.0MB in the beginning and 72.8MB in the end (delta: 2.2MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. * Witness Printer took 3.72ms. Allocated memory is still 213.9MB. Free memory was 72.8MB in the beginning and 71.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 21 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax177 hnf100 lsp36 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 30ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 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! [2024-11-20 22:10:04,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-11-20 22:10:04,342 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-20 22:10:04,542 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-11-20 22:10:04,744 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE