./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-bwb/not-05-false.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-bwb/not-05-false.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 355f76cd991b10eec25ab8029f87e9c70f181a0a2e2b92cd9248db0a2f405e2c --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 06:59:15,566 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 06:59:15,633 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-01-10 06:59:15,637 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 06:59:15,637 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 06:59:15,656 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 06:59:15,657 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 06:59:15,657 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 06:59:15,658 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 06:59:15,658 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 06:59:15,659 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 06:59:15,659 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 06:59:15,659 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 06:59:15,660 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-01-10 06:59:15,660 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-01-10 06:59:15,660 INFO L153 SettingsManager]: * Use old map elimination=false [2025-01-10 06:59:15,660 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-01-10 06:59:15,660 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-01-10 06:59:15,660 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-01-10 06:59:15,661 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 06:59:15,661 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-01-10 06:59:15,661 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 06:59:15,661 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 06:59:15,661 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-01-10 06:59:15,661 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-01-10 06:59:15,661 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-01-10 06:59:15,661 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 06:59:15,661 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 06:59:15,661 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-01-10 06:59:15,662 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 06:59:15,662 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 06:59:15,662 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 06:59:15,662 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:59:15,662 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 06:59:15,663 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 06:59:15,663 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-01-10 06:59:15,663 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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-jdk21/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 -> 355f76cd991b10eec25ab8029f87e9c70f181a0a2e2b92cd9248db0a2f405e2c [2025-01-10 06:59:15,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 06:59:15,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 06:59:15,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 06:59:15,976 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 06:59:15,976 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 06:59:15,979 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-bwb/not-05-false.c [2025-01-10 06:59:17,345 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a548fffa8/80b6ef15d20b47a086a701f1faf61705/FLAGc3e901dbb [2025-01-10 06:59:17,620 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 06:59:17,621 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/termination-bwb/not-05-false.c [2025-01-10 06:59:17,627 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a548fffa8/80b6ef15d20b47a086a701f1faf61705/FLAGc3e901dbb [2025-01-10 06:59:17,649 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a548fffa8/80b6ef15d20b47a086a701f1faf61705 [2025-01-10 06:59:17,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 06:59:17,655 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 06:59:17,658 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 06:59:17,659 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 06:59:17,663 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 06:59:17,664 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:59:17" (1/1) ... [2025-01-10 06:59:17,665 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@af80e5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:17, skipping insertion in model container [2025-01-10 06:59:17,665 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:59:17" (1/1) ... [2025-01-10 06:59:17,678 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 06:59:17,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:59:17,795 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 06:59:17,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:59:17,820 INFO L204 MainTranslator]: Completed translation [2025-01-10 06:59:17,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:17 WrapperNode [2025-01-10 06:59:17,823 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 06:59:17,824 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 06:59:17,824 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 06:59:17,824 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 06:59:17,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:17" (1/1) ... [2025-01-10 06:59:17,833 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:17" (1/1) ... [2025-01-10 06:59:17,844 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2025-01-10 06:59:17,845 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 06:59:17,846 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 06:59:17,846 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 06:59:17,846 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 06:59:17,853 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:17" (1/1) ... [2025-01-10 06:59:17,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:17" (1/1) ... [2025-01-10 06:59:17,854 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:17" (1/1) ... [2025-01-10 06:59:17,858 INFO L175 MemorySlicer]: No memory access in input program. [2025-01-10 06:59:17,859 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:17" (1/1) ... [2025-01-10 06:59:17,859 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:17" (1/1) ... [2025-01-10 06:59:17,860 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:17" (1/1) ... [2025-01-10 06:59:17,862 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:17" (1/1) ... [2025-01-10 06:59:17,864 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:17" (1/1) ... [2025-01-10 06:59:17,866 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:17" (1/1) ... [2025-01-10 06:59:17,866 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:17" (1/1) ... [2025-01-10 06:59:17,867 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 06:59:17,868 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 06:59:17,869 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 06:59:17,869 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 06:59:17,870 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:17" (1/1) ... [2025-01-10 06:59:17,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 06:59:17,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:59:17,903 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 06:59:17,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-01-10 06:59:17,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 06:59:17,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 06:59:17,976 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 06:59:17,978 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 06:59:18,038 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2025-01-10 06:59:18,039 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 06:59:18,048 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 06:59:18,049 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 06:59:18,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:59:18 BoogieIcfgContainer [2025-01-10 06:59:18,049 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 06:59:18,053 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-01-10 06:59:18,053 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-01-10 06:59:18,059 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-01-10 06:59:18,060 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-01-10 06:59:18,060 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.01 06:59:17" (1/3) ... [2025-01-10 06:59:18,061 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@747858df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.01 06:59:18, skipping insertion in model container [2025-01-10 06:59:18,061 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-01-10 06:59:18,062 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:17" (2/3) ... [2025-01-10 06:59:18,062 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@747858df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.01 06:59:18, skipping insertion in model container [2025-01-10 06:59:18,062 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-01-10 06:59:18,063 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:59:18" (3/3) ... [2025-01-10 06:59:18,064 INFO L363 chiAutomizerObserver]: Analyzing ICFG not-05-false.c [2025-01-10 06:59:18,100 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-01-10 06:59:18,101 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-01-10 06:59:18,101 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-01-10 06:59:18,101 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-01-10 06:59:18,101 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-01-10 06:59:18,101 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-01-10 06:59:18,101 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-01-10 06:59:18,101 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-01-10 06:59:18,104 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) [2025-01-10 06:59:18,113 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-01-10 06:59:18,113 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 06:59:18,113 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 06:59:18,115 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-01-10 06:59:18,115 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-01-10 06:59:18,116 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-01-10 06:59:18,116 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) [2025-01-10 06:59:18,116 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-01-10 06:59:18,116 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 06:59:18,116 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 06:59:18,116 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-01-10 06:59:18,116 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-01-10 06:59:18,121 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~a~0#1, main_~x~0#1, main_~y~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 0;" [2025-01-10 06:59:18,121 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~y~0#1 > 0;" "assume main_~x~0#1 < 0;main_~y~0#1 := -1 - main_~x~0#1;" [2025-01-10 06:59:18,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:59:18,125 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2025-01-10 06:59:18,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:59:18,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839262362] [2025-01-10 06:59:18,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:59:18,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:59:18,176 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 06:59:18,180 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 06:59:18,181 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:18,181 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:59:18,181 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 06:59:18,182 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 06:59:18,183 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 06:59:18,183 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:18,183 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:59:18,191 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 06:59:18,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:59:18,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1156, now seen corresponding path program 1 times [2025-01-10 06:59:18,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:59:18,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936179600] [2025-01-10 06:59:18,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:59:18,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:59:18,196 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 06:59:18,200 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 06:59:18,200 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:18,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:59:18,200 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 06:59:18,201 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 06:59:18,202 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 06:59:18,202 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:18,202 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:59:18,203 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 06:59:18,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:59:18,204 INFO L85 PathProgramCache]: Analyzing trace with hash 925638, now seen corresponding path program 1 times [2025-01-10 06:59:18,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:59:18,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198808713] [2025-01-10 06:59:18,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:59:18,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:59:18,208 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-10 06:59:18,209 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-10 06:59:18,210 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:18,210 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:59:18,210 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 06:59:18,211 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-10 06:59:18,213 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-10 06:59:18,213 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:18,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:59:18,214 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 06:59:18,339 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 06:59:18,340 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 06:59:18,340 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:18,340 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:59:18,340 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 06:59:18,344 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 06:59:18,345 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 06:59:18,345 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:18,345 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:59:18,364 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.01 06:59:18 BoogieIcfgContainer [2025-01-10 06:59:18,365 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-01-10 06:59:18,365 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 06:59:18,365 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 06:59:18,366 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 06:59:18,367 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:59:18" (3/4) ... [2025-01-10 06:59:18,368 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-01-10 06:59:18,403 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-10 06:59:18,403 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 06:59:18,404 INFO L158 Benchmark]: Toolchain (without parser) took 749.11ms. Allocated memory is still 201.3MB. Free memory was 159.4MB in the beginning and 121.4MB in the end (delta: 37.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-01-10 06:59:18,405 INFO L158 Benchmark]: CDTParser took 0.71ms. Allocated memory is still 201.3MB. Free memory is still 117.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:59:18,405 INFO L158 Benchmark]: CACSL2BoogieTranslator took 165.32ms. Allocated memory is still 201.3MB. Free memory was 159.4MB in the beginning and 149.7MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 06:59:18,405 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.02ms. Allocated memory is still 201.3MB. Free memory was 149.4MB in the beginning and 148.5MB in the end (delta: 861.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:59:18,405 INFO L158 Benchmark]: Boogie Preprocessor took 21.70ms. Allocated memory is still 201.3MB. Free memory was 148.5MB in the beginning and 147.6MB in the end (delta: 882.5kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:59:18,408 INFO L158 Benchmark]: RCFGBuilder took 183.71ms. Allocated memory is still 201.3MB. Free memory was 147.6MB in the beginning and 138.6MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 06:59:18,408 INFO L158 Benchmark]: BuchiAutomizer took 311.71ms. Allocated memory is still 201.3MB. Free memory was 138.4MB in the beginning and 124.1MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 06:59:18,408 INFO L158 Benchmark]: Witness Printer took 37.75ms. Allocated memory is still 201.3MB. Free memory was 124.1MB in the beginning and 121.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:59:18,410 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71ms. Allocated memory is still 201.3MB. Free memory is still 117.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 165.32ms. Allocated memory is still 201.3MB. Free memory was 159.4MB in the beginning and 149.7MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.02ms. Allocated memory is still 201.3MB. Free memory was 149.4MB in the beginning and 148.5MB in the end (delta: 861.1kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.70ms. Allocated memory is still 201.3MB. Free memory was 148.5MB in the beginning and 147.6MB in the end (delta: 882.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 183.71ms. Allocated memory is still 201.3MB. Free memory was 147.6MB in the beginning and 138.6MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 311.71ms. Allocated memory is still 201.3MB. Free memory was 138.4MB in the beginning and 124.1MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 37.75ms. Allocated memory is still 201.3MB. Free memory was 124.1MB in the beginning and 121.4MB in the end (delta: 2.7MB). 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 Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.2s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. 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 [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 17]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L13] int a, x, y; [L14] x = __VERIFIER_nondet_int() [L15] y = __VERIFIER_nondet_int() [L16] a = 0 Loop: [L17] COND TRUE y > 0 [L18] COND TRUE x < 0 [L19] y = ~x End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 17]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L13] int a, x, y; [L14] x = __VERIFIER_nondet_int() [L15] y = __VERIFIER_nondet_int() [L16] a = 0 Loop: [L17] COND TRUE y > 0 [L18] COND TRUE x < 0 [L19] y = ~x End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-01-10 06:59:18,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)