./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/PodelskiRybalchenko-TACAS2011-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-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 5ee8036e2d674497ff23bc3ed2316854be1442f7a1dd6897d55977d8700d5402 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-15 00:10:13,938 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-15 00:10:13,996 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-15 00:10:14,001 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-15 00:10:14,001 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-15 00:10:14,026 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-15 00:10:14,027 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-15 00:10:14,027 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-15 00:10:14,028 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-15 00:10:14,028 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-15 00:10:14,029 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-15 00:10:14,029 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-15 00:10:14,029 INFO L153 SettingsManager]: * Use SBE=true [2024-10-15 00:10:14,030 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-15 00:10:14,031 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-15 00:10:14,031 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-15 00:10:14,031 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-15 00:10:14,031 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-15 00:10:14,032 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-15 00:10:14,032 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-15 00:10:14,032 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-15 00:10:14,033 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-15 00:10:14,033 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-15 00:10:14,033 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-15 00:10:14,033 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-15 00:10:14,034 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-15 00:10:14,034 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-15 00:10:14,034 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-15 00:10:14,034 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-15 00:10:14,035 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-15 00:10:14,035 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-15 00:10:14,035 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-15 00:10:14,035 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-15 00:10:14,036 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-15 00:10:14,036 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-15 00:10:14,036 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-15 00:10:14,036 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ee8036e2d674497ff23bc3ed2316854be1442f7a1dd6897d55977d8700d5402 [2024-10-15 00:10:14,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-15 00:10:14,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-15 00:10:14,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-15 00:10:14,323 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-15 00:10:14,324 INFO L274 PluginConnector]: CDTParser initialized [2024-10-15 00:10:14,325 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig1.c [2024-10-15 00:10:15,785 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-15 00:10:15,975 INFO L384 CDTParser]: Found 1 translation units. [2024-10-15 00:10:15,975 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig1.c [2024-10-15 00:10:15,993 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/495140baf/02339eb2007c42a08693e9ab9fdd9cee/FLAG38ddac8d4 [2024-10-15 00:10:16,359 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/495140baf/02339eb2007c42a08693e9ab9fdd9cee [2024-10-15 00:10:16,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-15 00:10:16,367 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-15 00:10:16,370 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-15 00:10:16,370 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-15 00:10:16,379 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-15 00:10:16,380 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:10:16" (1/1) ... [2024-10-15 00:10:16,381 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c113761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:10:16, skipping insertion in model container [2024-10-15 00:10:16,381 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:10:16" (1/1) ... [2024-10-15 00:10:16,395 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-15 00:10:16,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 00:10:16,517 INFO L200 MainTranslator]: Completed pre-run [2024-10-15 00:10:16,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 00:10:16,538 INFO L204 MainTranslator]: Completed translation [2024-10-15 00:10:16,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:10:16 WrapperNode [2024-10-15 00:10:16,539 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-15 00:10:16,540 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-15 00:10:16,540 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-15 00:10:16,540 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-15 00:10:16,546 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:10:16" (1/1) ... [2024-10-15 00:10:16,549 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:10:16" (1/1) ... [2024-10-15 00:10:16,562 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 13 [2024-10-15 00:10:16,562 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-15 00:10:16,563 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-15 00:10:16,563 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-15 00:10:16,563 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-15 00:10:16,572 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:10:16" (1/1) ... [2024-10-15 00:10:16,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:10:16" (1/1) ... [2024-10-15 00:10:16,573 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:10:16" (1/1) ... [2024-10-15 00:10:16,579 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-15 00:10:16,580 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:10:16" (1/1) ... [2024-10-15 00:10:16,580 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:10:16" (1/1) ... [2024-10-15 00:10:16,581 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:10:16" (1/1) ... [2024-10-15 00:10:16,584 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:10:16" (1/1) ... [2024-10-15 00:10:16,585 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:10:16" (1/1) ... [2024-10-15 00:10:16,586 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:10:16" (1/1) ... [2024-10-15 00:10:16,586 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-15 00:10:16,587 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-15 00:10:16,587 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-15 00:10:16,587 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-15 00:10:16,588 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:10:16" (1/1) ... [2024-10-15 00:10:16,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:16,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:16,621 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:10:16,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-15 00:10:16,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-15 00:10:16,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-15 00:10:16,754 INFO L238 CfgBuilder]: Building ICFG [2024-10-15 00:10:16,757 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-15 00:10:16,796 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-10-15 00:10:16,796 INFO L287 CfgBuilder]: Performing block encoding [2024-10-15 00:10:16,806 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-15 00:10:16,806 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-15 00:10:16,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:10:16 BoogieIcfgContainer [2024-10-15 00:10:16,817 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-15 00:10:16,818 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-15 00:10:16,818 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-15 00:10:16,822 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-15 00:10:16,823 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-15 00:10:16,823 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.10 12:10:16" (1/3) ... [2024-10-15 00:10:16,824 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44079ccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 12:10:16, skipping insertion in model container [2024-10-15 00:10:16,824 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-15 00:10:16,824 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:10:16" (2/3) ... [2024-10-15 00:10:16,825 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44079ccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 12:10:16, skipping insertion in model container [2024-10-15 00:10:16,825 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-15 00:10:16,825 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:10:16" (3/3) ... [2024-10-15 00:10:16,826 INFO L332 chiAutomizerObserver]: Analyzing ICFG PodelskiRybalchenko-TACAS2011-Fig1.c [2024-10-15 00:10:16,871 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-15 00:10:16,871 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-15 00:10:16,871 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-15 00:10:16,871 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-15 00:10:16,872 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-15 00:10:16,872 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-15 00:10:16,872 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-15 00:10:16,872 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-15 00:10:16,876 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:10:16,896 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-10-15 00:10:16,896 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-15 00:10:16,896 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-15 00:10:16,900 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-15 00:10:16,904 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-10-15 00:10:16,904 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-15 00:10:16,905 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:10:16,906 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-10-15 00:10:16,907 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-15 00:10:16,907 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-15 00:10:16,908 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-15 00:10:16,908 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-10-15 00:10:16,920 INFO L745 eck$LassoCheckResult]: Stem: 5#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~y~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 6#L16-2true [2024-10-15 00:10:16,922 INFO L747 eck$LassoCheckResult]: Loop: 6#L16-2true assume !!(main_~y~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 6#L16-2true [2024-10-15 00:10:16,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:10:16,936 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-15 00:10:16,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:10:16,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542323101] [2024-10-15 00:10:16,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:10:16,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:10:17,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:17,109 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:10:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:17,145 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:10:17,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:10:17,158 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2024-10-15 00:10:17,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:10:17,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67443109] [2024-10-15 00:10:17,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:10:17,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:10:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:17,183 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:10:17,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:17,195 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:10:17,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:10:17,196 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2024-10-15 00:10:17,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:10:17,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932961614] [2024-10-15 00:10:17,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:10:17,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:10:17,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:17,206 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:10:17,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:10:17,212 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:10:17,292 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:10:17,292 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:10:17,293 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:10:17,293 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:10:17,293 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-15 00:10:17,296 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:17,296 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:10:17,296 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:10:17,296 INFO L132 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig1.c_Iteration1_Loop [2024-10-15 00:10:17,296 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:10:17,297 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:10:17,314 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:17,328 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:17,334 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:17,415 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:10:17,416 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-15 00:10:17,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:17,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:17,420 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:10:17,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-15 00:10:17,434 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:10:17,434 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:17,460 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:10:17,464 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-15 00:10:17,484 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-15 00:10:17,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:17,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:17,487 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:10:17,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-15 00:10:17,491 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:10:17,491 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:17,512 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-15 00:10:17,512 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-15 00:10:17,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-10-15 00:10:17,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:17,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:17,529 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:10:17,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-15 00:10:17,535 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-15 00:10:17,535 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:17,563 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 [2024-10-15 00:10:17,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:17,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:17,566 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:10:17,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-15 00:10:17,571 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-15 00:10:17,572 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-15 00:10:17,613 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-15 00:10:17,618 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 [2024-10-15 00:10:17,618 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:10:17,618 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:10:17,618 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:10:17,618 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:10:17,619 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-15 00:10:17,619 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:17,619 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:10:17,619 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:10:17,619 INFO L132 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig1.c_Iteration1_Loop [2024-10-15 00:10:17,619 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:10:17,619 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:10:17,621 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:17,625 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:17,628 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:10:17,668 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:10:17,672 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-15 00:10:17,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:17,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:17,675 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:10:17,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-15 00:10:17,677 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-15 00:10:17,688 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:10:17,689 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:10:17,689 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:10:17,689 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:10:17,695 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-15 00:10:17,696 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-15 00:10:17,700 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-15 00:10:17,711 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 [2024-10-15 00:10:17,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:17,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:17,714 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:10:17,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-15 00:10:17,717 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-15 00:10:17,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:10:17,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:10:17,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:10:17,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:10:17,731 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-15 00:10:17,732 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-15 00:10:17,737 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-15 00:10:17,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-10-15 00:10:17,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:17,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:17,750 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:10:17,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-15 00:10:17,753 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-15 00:10:17,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:10:17,765 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-15 00:10:17,765 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:10:17,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:10:17,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:10:17,767 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-15 00:10:17,767 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-15 00:10:17,769 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-15 00:10:17,772 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-15 00:10:17,773 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-15 00:10:17,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:10:17,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:10:17,776 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:10:17,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-15 00:10:17,779 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-15 00:10:17,779 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-15 00:10:17,779 INFO L474 LassoAnalysis]: Proved termination. [2024-10-15 00:10:17,780 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [] [2024-10-15 00:10:17,794 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 [2024-10-15 00:10:17,798 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-15 00:10:17,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:10:17,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:10:17,839 WARN L253 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-15 00:10:17,840 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:10:17,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:10:17,852 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-15 00:10:17,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:10:17,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:10:17,881 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-15 00:10:17,883 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:10:17,929 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 14 transitions. Complement of second has 4 states. [2024-10-15 00:10:17,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-10-15 00:10:17,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:10:17,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2024-10-15 00:10:17,939 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 2 letters. Loop has 1 letters. [2024-10-15 00:10:17,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:10:17,940 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 1 letters. [2024-10-15 00:10:17,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:10:17,940 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 2 letters. Loop has 2 letters. [2024-10-15 00:10:17,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:10:17,941 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2024-10-15 00:10:17,942 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-15 00:10:17,943 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2024-10-15 00:10:17,944 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-15 00:10:17,944 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-15 00:10:17,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-15 00:10:17,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-15 00:10:17,945 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-15 00:10:17,945 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-15 00:10:17,945 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-15 00:10:17,945 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-15 00:10:17,945 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-15 00:10:17,945 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-15 00:10:17,945 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-15 00:10:17,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.10 12:10:17 BoogieIcfgContainer [2024-10-15 00:10:17,951 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-15 00:10:17,952 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-15 00:10:17,952 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-15 00:10:17,952 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-15 00:10:17,952 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:10:16" (3/4) ... [2024-10-15 00:10:17,954 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-15 00:10:17,955 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-15 00:10:17,955 INFO L158 Benchmark]: Toolchain (without parser) took 1588.21ms. Allocated memory was 138.4MB in the beginning and 234.9MB in the end (delta: 96.5MB). Free memory was 86.3MB in the beginning and 158.7MB in the end (delta: -72.4MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. [2024-10-15 00:10:17,956 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 138.4MB. Free memory is still 110.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 00:10:17,956 INFO L158 Benchmark]: CACSL2BoogieTranslator took 169.15ms. Allocated memory is still 138.4MB. Free memory was 86.3MB in the beginning and 76.1MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-15 00:10:17,956 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.43ms. Allocated memory is still 138.4MB. Free memory was 76.1MB in the beginning and 74.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 00:10:17,957 INFO L158 Benchmark]: Boogie Preprocessor took 23.37ms. Allocated memory is still 138.4MB. Free memory was 74.6MB in the beginning and 73.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 00:10:17,957 INFO L158 Benchmark]: RCFGBuilder took 230.47ms. Allocated memory was 138.4MB in the beginning and 234.9MB in the end (delta: 96.5MB). Free memory was 73.3MB in the beginning and 203.8MB in the end (delta: -130.5MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2024-10-15 00:10:17,958 INFO L158 Benchmark]: BuchiAutomizer took 1132.66ms. Allocated memory is still 234.9MB. Free memory was 203.8MB in the beginning and 158.7MB in the end (delta: 45.1MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2024-10-15 00:10:17,958 INFO L158 Benchmark]: Witness Printer took 3.17ms. Allocated memory is still 234.9MB. Free memory is still 158.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 00:10:17,960 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 138.4MB. Free memory is still 110.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 169.15ms. Allocated memory is still 138.4MB. Free memory was 86.3MB in the beginning and 76.1MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.43ms. Allocated memory is still 138.4MB. Free memory was 76.1MB in the beginning and 74.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.37ms. Allocated memory is still 138.4MB. Free memory was 74.6MB in the beginning and 73.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 230.47ms. Allocated memory was 138.4MB in the beginning and 234.9MB in the end (delta: 96.5MB). Free memory was 73.3MB in the beginning and 203.8MB in the end (delta: -130.5MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 1132.66ms. Allocated memory is still 234.9MB. Free memory was 203.8MB in the beginning and 158.7MB in the end (delta: 45.1MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Witness Printer took 3.17ms. Allocated memory is still 234.9MB. Free memory is still 158.7MB. 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (((long) 2 * y) + 1) and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 2 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 27ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-15 00:10:17,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-10-15 00:10:18,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE