./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-crafted/simple_array_index_value_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e2fb8bed 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-crafted/simple_array_index_value_1-2.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 d092867a9e1055748d4525b336ea1f27e78b14112d4f5a890867dcf4a9fe862b --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 07:18:15,682 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 07:18:15,732 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-03-09 07:18:15,736 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 07:18:15,737 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 07:18:15,737 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-09 07:18:15,752 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 07:18:15,752 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 07:18:15,753 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 07:18:15,753 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 07:18:15,753 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 07:18:15,753 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 07:18:15,753 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 07:18:15,753 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 07:18:15,753 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-09 07:18:15,753 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-09 07:18:15,753 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-09 07:18:15,753 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-09 07:18:15,755 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-09 07:18:15,755 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-09 07:18:15,755 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 07:18:15,755 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-09 07:18:15,756 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 07:18:15,756 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 07:18:15,756 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 07:18:15,756 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 07:18:15,756 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-09 07:18:15,756 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-09 07:18:15,756 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-09 07:18:15,756 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 07:18:15,756 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 07:18:15,756 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 07:18:15,757 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-09 07:18:15,757 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 07:18:15,757 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 07:18:15,757 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 07:18:15,757 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 07:18:15,757 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 07:18:15,757 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 07:18:15,758 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-09 07:18:15,758 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 -> d092867a9e1055748d4525b336ea1f27e78b14112d4f5a890867dcf4a9fe862b [2025-03-09 07:18:15,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 07:18:15,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 07:18:15,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 07:18:15,984 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 07:18:15,984 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 07:18:15,985 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-crafted/simple_array_index_value_1-2.i [2025-03-09 07:18:17,236 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d6d4897c/26eff8c48ce6439cad27b69037af1693/FLAG2c012d0c6 [2025-03-09 07:18:17,451 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 07:18:17,452 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-crafted/simple_array_index_value_1-2.i [2025-03-09 07:18:17,457 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d6d4897c/26eff8c48ce6439cad27b69037af1693/FLAG2c012d0c6 [2025-03-09 07:18:17,792 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d6d4897c/26eff8c48ce6439cad27b69037af1693 [2025-03-09 07:18:17,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 07:18:17,795 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 07:18:17,796 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 07:18:17,796 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 07:18:17,799 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 07:18:17,800 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 07:18:17" (1/1) ... [2025-03-09 07:18:17,800 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2389f8ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:18:17, skipping insertion in model container [2025-03-09 07:18:17,800 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 07:18:17" (1/1) ... [2025-03-09 07:18:17,812 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 07:18:17,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 07:18:17,940 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 07:18:17,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 07:18:17,966 INFO L204 MainTranslator]: Completed translation [2025-03-09 07:18:17,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:18:17 WrapperNode [2025-03-09 07:18:17,967 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 07:18:17,968 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 07:18:17,968 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 07:18:17,968 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 07:18:17,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:18:17" (1/1) ... [2025-03-09 07:18:17,979 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:18:17" (1/1) ... [2025-03-09 07:18:17,992 INFO L138 Inliner]: procedures = 17, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 36 [2025-03-09 07:18:17,993 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 07:18:17,994 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 07:18:17,994 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 07:18:17,994 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 07:18:18,000 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:18:17" (1/1) ... [2025-03-09 07:18:18,000 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:18:17" (1/1) ... [2025-03-09 07:18:18,001 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:18:17" (1/1) ... [2025-03-09 07:18:18,024 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [2, 2]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2025-03-09 07:18:18,024 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:18:17" (1/1) ... [2025-03-09 07:18:18,024 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:18:17" (1/1) ... [2025-03-09 07:18:18,027 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:18:17" (1/1) ... [2025-03-09 07:18:18,027 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:18:17" (1/1) ... [2025-03-09 07:18:18,028 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:18:17" (1/1) ... [2025-03-09 07:18:18,028 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:18:17" (1/1) ... [2025-03-09 07:18:18,029 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 07:18:18,031 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 07:18:18,031 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 07:18:18,031 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 07:18:18,032 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:18:17" (1/1) ... [2025-03-09 07:18:18,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:18:18,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 07:18:18,057 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) [2025-03-09 07:18:18,063 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 [2025-03-09 07:18:18,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 07:18:18,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 07:18:18,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-09 07:18:18,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-09 07:18:18,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-09 07:18:18,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-09 07:18:18,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 07:18:18,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 07:18:18,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-09 07:18:18,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-09 07:18:18,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-09 07:18:18,143 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 07:18:18,144 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 07:18:18,250 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2025-03-09 07:18:18,250 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 07:18:18,256 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 07:18:18,256 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 07:18:18,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 07:18:18 BoogieIcfgContainer [2025-03-09 07:18:18,256 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 07:18:18,257 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-09 07:18:18,257 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-09 07:18:18,262 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-09 07:18:18,262 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 07:18:18,262 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.03 07:18:17" (1/3) ... [2025-03-09 07:18:18,263 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c2bc52b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.03 07:18:18, skipping insertion in model container [2025-03-09 07:18:18,263 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 07:18:18,263 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:18:17" (2/3) ... [2025-03-09 07:18:18,263 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c2bc52b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.03 07:18:18, skipping insertion in model container [2025-03-09 07:18:18,263 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 07:18:18,264 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 07:18:18" (3/3) ... [2025-03-09 07:18:18,265 INFO L363 chiAutomizerObserver]: Analyzing ICFG simple_array_index_value_1-2.i [2025-03-09 07:18:18,304 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-09 07:18:18,304 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-09 07:18:18,304 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-09 07:18:18,304 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-09 07:18:18,305 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-09 07:18:18,305 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-09 07:18:18,305 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-09 07:18:18,305 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-09 07:18:18,309 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 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) [2025-03-09 07:18:18,324 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-03-09 07:18:18,325 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 07:18:18,325 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 07:18:18,328 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-03-09 07:18:18,329 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-03-09 07:18:18,329 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-09 07:18:18,329 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 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) [2025-03-09 07:18:18,330 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-03-09 07:18:18,330 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 07:18:18,330 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 07:18:18,330 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-03-09 07:18:18,330 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-03-09 07:18:18,336 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~mem2#1, main_#t~short3#1, main_~#array~0#1.base, main_~#array~0#1.offset, main_~index~0#1, main_~tmp~0#1;call main_~#array~0#1.base, main_~#array~0#1.offset := #Ultimate.allocOnStack(40000);main_~index~0#1 := 0;main_~tmp~0#1 := 0;" [2025-03-09 07:18:18,336 INFO L754 eck$LassoCheckResult]: Loop: "assume true;havoc main_#t~nondet1#1;main_~index~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !(main_~index~0#1 % 4294967296 >= 10000);call write~int#1(main_~index~0#1, main_~#array~0#1.base, main_~#array~0#1.offset + 4 * (if main_~index~0#1 % 4294967296 % 4294967296 <= 2147483647 then main_~index~0#1 % 4294967296 % 4294967296 else main_~index~0#1 % 4294967296 % 4294967296 - 4294967296), 4);main_~tmp~0#1 := main_~index~0#1;" [2025-03-09 07:18:18,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:18:18,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1600, now seen corresponding path program 1 times [2025-03-09 07:18:18,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:18:18,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5713154] [2025-03-09 07:18:18,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:18:18,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:18:18,410 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-09 07:18:18,428 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-09 07:18:18,429 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:18:18,430 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:18:18,430 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:18:18,435 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-09 07:18:18,442 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-09 07:18:18,443 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:18:18,443 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:18:18,460 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:18:18,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:18:18,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1504, now seen corresponding path program 1 times [2025-03-09 07:18:18,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:18:18,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138480475] [2025-03-09 07:18:18,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:18:18,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:18:18,471 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-09 07:18:18,482 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-09 07:18:18,482 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:18:18,482 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:18:18,482 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:18:18,484 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-09 07:18:18,490 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-09 07:18:18,492 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:18:18,492 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:18:18,494 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:18:18,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:18:18,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1538143, now seen corresponding path program 1 times [2025-03-09 07:18:18,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:18:18,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055485221] [2025-03-09 07:18:18,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:18:18,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:18:18,510 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 07:18:18,527 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 07:18:18,529 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:18:18,529 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:18:18,529 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:18:18,533 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 07:18:18,546 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 07:18:18,546 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:18:18,546 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:18:18,548 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:18:18,841 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-09 07:18:18,843 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-09 07:18:18,843 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:18:18,843 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:18:18,843 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:18:18,847 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-09 07:18:18,848 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-09 07:18:18,848 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:18:18,848 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:18:18,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.03 07:18:18 BoogieIcfgContainer [2025-03-09 07:18:18,869 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-09 07:18:18,869 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 07:18:18,869 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 07:18:18,870 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 07:18:18,870 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 07:18:18" (3/4) ... [2025-03-09 07:18:18,871 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-03-09 07:18:18,897 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 07:18:18,897 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 07:18:18,898 INFO L158 Benchmark]: Toolchain (without parser) took 1102.94ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 49.2MB in the end (delta: 63.1MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-03-09 07:18:18,898 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 226.5MB. Free memory is still 147.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 07:18:18,898 INFO L158 Benchmark]: CACSL2BoogieTranslator took 171.49ms. Allocated memory is still 142.6MB. Free memory was 111.7MB in the beginning and 101.4MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 07:18:18,898 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.23ms. Allocated memory is still 142.6MB. Free memory was 101.4MB in the beginning and 99.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 07:18:18,899 INFO L158 Benchmark]: Boogie Preprocessor took 35.55ms. Allocated memory is still 142.6MB. Free memory was 99.8MB in the beginning and 99.0MB in the end (delta: 828.4kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 07:18:18,899 INFO L158 Benchmark]: IcfgBuilder took 225.51ms. Allocated memory is still 142.6MB. Free memory was 99.0MB in the beginning and 87.3MB in the end (delta: 11.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 07:18:18,899 INFO L158 Benchmark]: BuchiAutomizer took 611.83ms. Allocated memory is still 142.6MB. Free memory was 86.8MB in the beginning and 52.2MB in the end (delta: 34.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-09 07:18:18,899 INFO L158 Benchmark]: Witness Printer took 27.52ms. Allocated memory is still 142.6MB. Free memory was 52.2MB in the beginning and 49.2MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 07:18:18,900 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 226.5MB. Free memory is still 147.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 171.49ms. Allocated memory is still 142.6MB. Free memory was 111.7MB in the beginning and 101.4MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.23ms. Allocated memory is still 142.6MB. Free memory was 101.4MB in the beginning and 99.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.55ms. Allocated memory is still 142.6MB. Free memory was 99.8MB in the beginning and 99.0MB in the end (delta: 828.4kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 225.51ms. Allocated memory is still 142.6MB. Free memory was 99.0MB in the beginning and 87.3MB in the end (delta: 11.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 611.83ms. Allocated memory is still 142.6MB. Free memory was 86.8MB in the beginning and 52.2MB in the end (delta: 34.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 27.52ms. Allocated memory is still 142.6MB. Free memory was 52.2MB in the beginning and 49.2MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.5s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. 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: 39]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L35] unsigned int array[10000]; [L36] unsigned int index = 0; [L37] unsigned int tmp = 0; VAL [array={30728:0}, tmp=0] Loop: [L39] COND TRUE 1 [L40] index = __VERIFIER_nondet_uint() [L41] COND FALSE !(index >= 10000) [L44] array[index] = index [L45] tmp = index End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 39]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L35] unsigned int array[10000]; [L36] unsigned int index = 0; [L37] unsigned int tmp = 0; VAL [array={30728:0}, tmp=0] Loop: [L39] COND TRUE 1 [L40] index = __VERIFIER_nondet_uint() [L41] COND FALSE !(index >= 10000) [L44] array[index] = index [L45] tmp = index End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-03-09 07:18:18,914 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)