./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-lit/bh2017-ex-add.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loop-lit/bh2017-ex-add.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9067bcd66b4865bfb6aa4fb5c23797c879c2b81c36d918479d6650dc5a4b5edc --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 16:04:56,634 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 16:04:56,675 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-03-04 16:04:56,678 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 16:04:56,678 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 16:04:56,678 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-04 16:04:56,692 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 16:04:56,693 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 16:04:56,693 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 16:04:56,693 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 16:04:56,693 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 16:04:56,693 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 16:04:56,693 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 16:04:56,693 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 16:04:56,694 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-04 16:04:56,694 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-04 16:04:56,694 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-04 16:04:56,694 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-04 16:04:56,694 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-04 16:04:56,694 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-04 16:04:56,694 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 16:04:56,694 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-04 16:04:56,694 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 16:04:56,694 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 16:04:56,694 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 16:04:56,694 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 16:04:56,694 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-04 16:04:56,694 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-04 16:04:56,694 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-04 16:04:56,694 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 16:04:56,694 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 16:04:56,694 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 16:04:56,694 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-04 16:04:56,695 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 16:04:56,695 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 16:04:56,695 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 16:04:56,695 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 16:04:56,695 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 16:04:56,695 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 16:04:56,695 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-04 16:04:56,695 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/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9067bcd66b4865bfb6aa4fb5c23797c879c2b81c36d918479d6650dc5a4b5edc [2025-03-04 16:04:56,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 16:04:56,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 16:04:56,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 16:04:56,909 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 16:04:56,909 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 16:04:56,910 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/bh2017-ex-add.i [2025-03-04 16:04:58,054 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9afbdac46/044b4f33551e4f438cb9b1bc259dde45/FLAG82dad16e3 [2025-03-04 16:04:58,258 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 16:04:58,259 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/bh2017-ex-add.i [2025-03-04 16:04:58,264 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9afbdac46/044b4f33551e4f438cb9b1bc259dde45/FLAG82dad16e3 [2025-03-04 16:04:58,621 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9afbdac46/044b4f33551e4f438cb9b1bc259dde45 [2025-03-04 16:04:58,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 16:04:58,624 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 16:04:58,625 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 16:04:58,625 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 16:04:58,627 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 16:04:58,628 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:04:58" (1/1) ... [2025-03-04 16:04:58,629 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fc982e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:04:58, skipping insertion in model container [2025-03-04 16:04:58,629 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:04:58" (1/1) ... [2025-03-04 16:04:58,640 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 16:04:58,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 16:04:58,746 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 16:04:58,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 16:04:58,764 INFO L204 MainTranslator]: Completed translation [2025-03-04 16:04:58,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:04:58 WrapperNode [2025-03-04 16:04:58,765 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 16:04:58,766 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 16:04:58,766 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 16:04:58,766 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 16:04:58,770 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:04:58" (1/1) ... [2025-03-04 16:04:58,774 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:04:58" (1/1) ... [2025-03-04 16:04:58,786 INFO L138 Inliner]: procedures = 15, calls = 11, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 75 [2025-03-04 16:04:58,786 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 16:04:58,787 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 16:04:58,787 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 16:04:58,787 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 16:04:58,792 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:04:58" (1/1) ... [2025-03-04 16:04:58,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:04:58" (1/1) ... [2025-03-04 16:04:58,794 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:04:58" (1/1) ... [2025-03-04 16:04:58,803 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-04 16:04:58,804 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:04:58" (1/1) ... [2025-03-04 16:04:58,804 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:04:58" (1/1) ... [2025-03-04 16:04:58,806 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:04:58" (1/1) ... [2025-03-04 16:04:58,807 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:04:58" (1/1) ... [2025-03-04 16:04:58,808 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:04:58" (1/1) ... [2025-03-04 16:04:58,809 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:04:58" (1/1) ... [2025-03-04 16:04:58,810 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 16:04:58,810 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 16:04:58,810 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 16:04:58,810 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 16:04:58,811 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:04:58" (1/1) ... [2025-03-04 16:04:58,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:04:58,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:04:58,837 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) [2025-03-04 16:04:58,841 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 [2025-03-04 16:04:58,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 16:04:58,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 16:04:58,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 16:04:58,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 16:04:58,903 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 16:04:58,904 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 16:04:59,033 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2025-03-04 16:04:59,034 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 16:04:59,042 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 16:04:59,043 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 16:04:59,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:04:59 BoogieIcfgContainer [2025-03-04 16:04:59,043 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 16:04:59,044 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-04 16:04:59,044 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-04 16:04:59,048 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-04 16:04:59,048 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:04:59,049 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 04.03 04:04:58" (1/3) ... [2025-03-04 16:04:59,049 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32aa8984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:04:59, skipping insertion in model container [2025-03-04 16:04:59,049 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:04:59,050 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:04:58" (2/3) ... [2025-03-04 16:04:59,050 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32aa8984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:04:59, skipping insertion in model container [2025-03-04 16:04:59,050 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:04:59,050 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:04:59" (3/3) ... [2025-03-04 16:04:59,051 INFO L363 chiAutomizerObserver]: Analyzing ICFG bh2017-ex-add.i [2025-03-04 16:04:59,093 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-04 16:04:59,093 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-04 16:04:59,094 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-04 16:04:59,094 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-04 16:04:59,094 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-04 16:04:59,094 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-04 16:04:59,094 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-04 16:04:59,095 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-04 16:04:59,099 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 33 states, 32 states have (on average 1.46875) internal successors, (47), 32 states have internal predecessors, (47), 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) [2025-03-04 16:04:59,111 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 28 [2025-03-04 16:04:59,111 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:04:59,111 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:04:59,115 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-03-04 16:04:59,115 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:04:59,115 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-04 16:04:59,116 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 33 states, 32 states have (on average 1.46875) internal successors, (47), 32 states have internal predecessors, (47), 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) [2025-03-04 16:04:59,117 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 28 [2025-03-04 16:04:59,117 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:04:59,117 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:04:59,117 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-03-04 16:04:59,117 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:04:59,124 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(12, 2);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~post3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~post6#1, main_~m~0#1, main_~n~0#1;main_~m~0#1 := 0;main_~n~0#1 := 0;" [2025-03-04 16:04:59,124 INFO L754 eck$LassoCheckResult]: Loop: "assume true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~m~0#1 <= 60 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~n~0#1 <= 60 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~nondet1#1;assume 0 == main_#t~nondet1#1 || 1 == main_#t~nondet1#1;" "assume !(0 != main_#t~nondet1#1 % 256);havoc main_#t~nondet1#1;" "havoc main_#t~nondet4#1;assume 0 == main_#t~nondet4#1 || 1 == main_#t~nondet4#1;" "assume !(0 != main_#t~nondet4#1 % 256);havoc main_#t~nondet4#1;" [2025-03-04 16:04:59,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:04:59,130 INFO L85 PathProgramCache]: Analyzing trace with hash 2432, now seen corresponding path program 1 times [2025-03-04 16:04:59,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:04:59,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926189456] [2025-03-04 16:04:59,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:04:59,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:04:59,175 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-04 16:04:59,184 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-04 16:04:59,184 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:04:59,184 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:04:59,185 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:04:59,187 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-04 16:04:59,190 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-04 16:04:59,190 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:04:59,191 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:04:59,202 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:04:59,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:04:59,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1831810979, now seen corresponding path program 1 times [2025-03-04 16:04:59,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:04:59,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336716604] [2025-03-04 16:04:59,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:04:59,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:04:59,213 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 16:04:59,228 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 16:04:59,229 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:04:59,229 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:04:59,229 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:04:59,231 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 16:04:59,241 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 16:04:59,241 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:04:59,241 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:04:59,242 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:04:59,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:04:59,244 INFO L85 PathProgramCache]: Analyzing trace with hash -2002066724, now seen corresponding path program 1 times [2025-03-04 16:04:59,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:04:59,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74488] [2025-03-04 16:04:59,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:04:59,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:04:59,248 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 16:04:59,254 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 16:04:59,257 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:04:59,257 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:04:59,257 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:04:59,259 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 16:04:59,269 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 16:04:59,269 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:04:59,269 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:04:59,271 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:04:59,481 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-04 16:04:59,482 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-04 16:04:59,483 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:04:59,483 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:04:59,483 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:04:59,485 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-04 16:04:59,485 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-04 16:04:59,486 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:04:59,486 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:04:59,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 04.03 04:04:59 BoogieIcfgContainer [2025-03-04 16:04:59,504 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-04 16:04:59,508 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 16:04:59,508 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 16:04:59,508 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 16:04:59,508 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:04:59" (3/4) ... [2025-03-04 16:04:59,510 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-03-04 16:04:59,536 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 16:04:59,537 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 16:04:59,539 INFO L158 Benchmark]: Toolchain (without parser) took 914.21ms. Allocated memory is still 142.6MB. Free memory was 112.8MB in the beginning and 56.8MB in the end (delta: 56.0MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-03-04 16:04:59,539 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 201.3MB. Free memory is still 122.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:04:59,541 INFO L158 Benchmark]: CACSL2BoogieTranslator took 140.84ms. Allocated memory is still 142.6MB. Free memory was 112.8MB in the beginning and 102.0MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 16:04:59,541 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.52ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 100.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:04:59,541 INFO L158 Benchmark]: Boogie Preprocessor took 22.74ms. Allocated memory is still 142.6MB. Free memory was 100.7MB in the beginning and 99.8MB in the end (delta: 900.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:04:59,541 INFO L158 Benchmark]: IcfgBuilder took 233.23ms. Allocated memory is still 142.6MB. Free memory was 99.8MB in the beginning and 87.6MB in the end (delta: 12.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 16:04:59,541 INFO L158 Benchmark]: BuchiAutomizer took 459.80ms. Allocated memory is still 142.6MB. Free memory was 87.6MB in the beginning and 59.8MB in the end (delta: 27.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-04 16:04:59,542 INFO L158 Benchmark]: Witness Printer took 29.53ms. Allocated memory is still 142.6MB. Free memory was 59.3MB in the beginning and 56.8MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 16:04:59,544 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 201.3MB. Free memory is still 122.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 140.84ms. Allocated memory is still 142.6MB. Free memory was 112.8MB in the beginning and 102.0MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.52ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 100.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.74ms. Allocated memory is still 142.6MB. Free memory was 100.7MB in the beginning and 99.8MB in the end (delta: 900.6kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 233.23ms. Allocated memory is still 142.6MB. Free memory was 99.8MB in the beginning and 87.6MB in the end (delta: 12.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 459.80ms. Allocated memory is still 142.6MB. Free memory was 87.6MB in the beginning and 59.8MB in the end (delta: 27.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 29.53ms. Allocated memory is still 142.6MB. Free memory was 59.3MB in the beginning and 56.8MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. 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 0.4s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.3s. 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: 18]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L16] int m = 0; [L17] int n = 0; VAL [m=0, n=0] Loop: [L18] COND TRUE 1 [L19] CALL __VERIFIER_assert(m <= 60) [L13] COND FALSE !(!(cond)) [L19] RET __VERIFIER_assert(m <= 60) [L20] CALL __VERIFIER_assert(n <= 60) [L13] COND FALSE !(!(cond)) [L20] RET __VERIFIER_assert(n <= 60) [L21] COND FALSE !(__VERIFIER_nondet_bool()) [L32] COND FALSE !(__VERIFIER_nondet_bool()) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 18]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L16] int m = 0; [L17] int n = 0; VAL [m=0, n=0] Loop: [L18] COND TRUE 1 [L19] CALL __VERIFIER_assert(m <= 60) [L13] COND FALSE !(!(cond)) [L19] RET __VERIFIER_assert(m <= 60) [L20] CALL __VERIFIER_assert(n <= 60) [L13] COND FALSE !(!(cond)) [L20] RET __VERIFIER_assert(n <= 60) [L21] COND FALSE !(__VERIFIER_nondet_bool()) [L32] COND FALSE !(__VERIFIER_nondet_bool()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-03-04 16:04:59,559 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)