./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 48c9605d 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/recursified_loop-crafted/recursified_simple_array_index_value_1-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash b761192fa7940b5b8dcbde16e115ffe8d21a1b5878463860b50bdc92045acfbc --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:50:58,460 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:50:58,509 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-02-08 14:50:58,516 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:50:58,517 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:50:58,517 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-02-08 14:50:58,535 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:50:58,537 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:50:58,537 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:50:58,537 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:50:58,537 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:50:58,538 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:50:58,538 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:50:58,538 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:50:58,538 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-08 14:50:58,539 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-08 14:50:58,539 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-08 14:50:58,539 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-08 14:50:58,539 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-08 14:50:58,539 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-08 14:50:58,539 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:50:58,539 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-08 14:50:58,539 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:50:58,539 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:50:58,539 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:50:58,539 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:50:58,539 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-08 14:50:58,539 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-08 14:50:58,539 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-08 14:50:58,539 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:50:58,539 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:50:58,540 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:50:58,540 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-08 14:50:58,540 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:50:58,540 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:50:58,540 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:50:58,540 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:50:58,540 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:50:58,540 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:50:58,541 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-08 14:50:58,541 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b761192fa7940b5b8dcbde16e115ffe8d21a1b5878463860b50bdc92045acfbc [2025-02-08 14:50:58,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:50:58,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:50:58,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:50:58,768 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:50:58,768 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:50:58,769 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_1-2.i [2025-02-08 14:50:59,895 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cf83f0092/610fc5c8fd364511a8b3feb2cf31d7d4/FLAG2296363c4 [2025-02-08 14:51:00,134 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:51:00,134 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_1-2.i [2025-02-08 14:51:00,139 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cf83f0092/610fc5c8fd364511a8b3feb2cf31d7d4/FLAG2296363c4 [2025-02-08 14:51:00,464 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cf83f0092/610fc5c8fd364511a8b3feb2cf31d7d4 [2025-02-08 14:51:00,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:51:00,467 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:51:00,468 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:51:00,468 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:51:00,471 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:51:00,472 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:51:00" (1/1) ... [2025-02-08 14:51:00,473 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7885d5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:51:00, skipping insertion in model container [2025-02-08 14:51:00,473 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:51:00" (1/1) ... [2025-02-08 14:51:00,485 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:51:00,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:51:00,593 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:51:00,603 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:51:00,611 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:51:00,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:51:00 WrapperNode [2025-02-08 14:51:00,612 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:51:00,612 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:51:00,612 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:51:00,612 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:51:00,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:51:00" (1/1) ... [2025-02-08 14:51:00,622 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:51:00" (1/1) ... [2025-02-08 14:51:00,631 INFO L138 Inliner]: procedures = 18, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 42 [2025-02-08 14:51:00,631 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:51:00,631 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:51:00,632 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:51:00,632 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:51:00,636 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:51:00" (1/1) ... [2025-02-08 14:51:00,636 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:51:00" (1/1) ... [2025-02-08 14:51:00,637 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:51:00" (1/1) ... [2025-02-08 14:51:00,645 INFO L175 MemorySlicer]: Split 15 memory accesses to 4 slices as follows [2, 2, 5, 6]. 40 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 0, 1, 1]. The 3 writes are split as follows [0, 1, 1, 1]. [2025-02-08 14:51:00,645 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:51:00" (1/1) ... [2025-02-08 14:51:00,645 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:51:00" (1/1) ... [2025-02-08 14:51:00,649 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:51:00" (1/1) ... [2025-02-08 14:51:00,649 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:51:00" (1/1) ... [2025-02-08 14:51:00,650 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:51:00" (1/1) ... [2025-02-08 14:51:00,650 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:51:00" (1/1) ... [2025-02-08 14:51:00,652 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:51:00,652 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:51:00,652 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:51:00,652 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:51:00,653 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:51:00" (1/1) ... [2025-02-08 14:51:00,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:51:00,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:51:00,675 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) [2025-02-08 14:51:00,678 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 [2025-02-08 14:51:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:51:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:51:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 14:51:00,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 14:51:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 14:51:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 14:51:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 14:51:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 14:51:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 14:51:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 14:51:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_39_to_45_0 [2025-02-08 14:51:00,698 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_39_to_45_0 [2025-02-08 14:51:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:51:00,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:51:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 14:51:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 14:51:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 14:51:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 14:51:00,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 14:51:00,767 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:51:00,769 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:51:00,908 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2025-02-08 14:51:00,908 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:51:00,918 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:51:00,919 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:51:00,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:51:00 BoogieIcfgContainer [2025-02-08 14:51:00,920 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:51:00,920 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-08 14:51:00,920 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-08 14:51:00,924 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-08 14:51:00,925 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:51:00,925 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.02 02:51:00" (1/3) ... [2025-02-08 14:51:00,926 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@592ceed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.02 02:51:00, skipping insertion in model container [2025-02-08 14:51:00,926 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:51:00,926 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:51:00" (2/3) ... [2025-02-08 14:51:00,926 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@592ceed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.02 02:51:00, skipping insertion in model container [2025-02-08 14:51:00,927 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:51:00,927 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:51:00" (3/3) ... [2025-02-08 14:51:00,928 INFO L363 chiAutomizerObserver]: Analyzing ICFG recursified_simple_array_index_value_1-2.i [2025-02-08 14:51:00,968 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-08 14:51:00,968 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-08 14:51:00,968 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-08 14:51:00,969 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-08 14:51:00,969 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-08 14:51:00,969 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-08 14:51:00,969 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-08 14:51:00,969 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-08 14:51:00,973 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 14:51:00,983 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2025-02-08 14:51:00,984 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:51:00,984 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:51:00,987 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-08 14:51:00,987 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-08 14:51:00,987 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-08 14:51:00,987 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 14:51:00,988 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2025-02-08 14:51:00,988 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:51:00,988 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:51:00,988 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-08 14:51:00,988 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-08 14:51:00,993 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~short10#1, main_~#array~0#1.base, main_~#array~0#1.offset, main_~#index~0#1.base, main_~#index~0#1.offset, main_~#tmp~0#1.base, main_~#tmp~0#1.offset;call main_~#array~0#1.base, main_~#array~0#1.offset := #Ultimate.allocOnStack(40000);call main_~#index~0#1.base, main_~#index~0#1.offset := #Ultimate.allocOnStack(4);call write~init~int#3(0, main_~#index~0#1.base, main_~#index~0#1.offset, 4);call main_~#tmp~0#1.base, main_~#tmp~0#1.offset := #Ultimate.allocOnStack(4);call write~init~int#2(0, main_~#tmp~0#1.base, main_~#tmp~0#1.offset, 4);" "call func_to_recursive_line_39_to_45_0(main_~#array~0#1.base, main_~#array~0#1.offset, main_~#index~0#1.base, main_~#index~0#1.offset, main_~#tmp~0#1.base, main_~#tmp~0#1.offset);"< [2025-02-08 14:51:00,993 INFO L754 eck$LassoCheckResult]: Loop: "~array.base, ~array.offset := #in~array.base, #in~array.offset;~index.base, ~index.offset := #in~index.base, #in~index.offset;~tmp.base, ~tmp.offset := #in~tmp.base, #in~tmp.offset;" "assume true;havoc #t~nondet1;call write~int#3(#t~nondet1, ~index.base, ~index.offset, 4);havoc #t~nondet1;call #t~mem2 := read~int#3(~index.base, ~index.offset, 4);" "assume !(#t~mem2 % 4294967296 >= 10000);havoc #t~mem2;call #t~mem3 := read~int#3(~index.base, ~index.offset, 4);call #t~mem4 := read~int#3(~index.base, ~index.offset, 4);call write~int#1(#t~mem4, ~array.base, ~array.offset + 4 * (if #t~mem3 % 4294967296 % 4294967296 <= 2147483647 then #t~mem3 % 4294967296 % 4294967296 else #t~mem3 % 4294967296 % 4294967296 - 4294967296), 4);havoc #t~mem3;havoc #t~mem4;call #t~mem5 := read~int#3(~index.base, ~index.offset, 4);call write~int#2(#t~mem5, ~tmp.base, ~tmp.offset, 4);havoc #t~mem5;" "call func_to_recursive_line_39_to_45_0(~array.base, ~array.offset, ~index.base, ~index.offset, ~tmp.base, ~tmp.offset);"< [2025-02-08 14:51:00,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:51:00,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1605, now seen corresponding path program 1 times [2025-02-08 14:51:01,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:51:01,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750185520] [2025-02-08 14:51:01,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:51:01,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:51:01,050 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:51:01,073 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:51:01,073 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:51:01,073 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:51:01,074 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:51:01,081 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:51:01,092 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:51:01,092 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:51:01,092 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:51:01,110 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:51:01,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:51:01,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1137009, now seen corresponding path program 1 times [2025-02-08 14:51:01,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:51:01,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578507758] [2025-02-08 14:51:01,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:51:01,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:51:01,121 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 14:51:01,142 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:51:01,142 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:51:01,142 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:51:01,143 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:51:01,146 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 14:51:01,154 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:51:01,154 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:51:01,154 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:51:01,157 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:51:01,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:51:01,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1482464693, now seen corresponding path program 1 times [2025-02-08 14:51:01,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:51:01,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414849201] [2025-02-08 14:51:01,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:51:01,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:51:01,172 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:51:01,198 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:51:01,198 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:51:01,198 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:51:01,198 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:51:01,202 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:51:01,223 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:51:01,223 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:51:01,223 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:51:01,231 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:51:02,657 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:51:02,663 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:51:02,663 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:51:02,663 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:51:02,663 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:51:02,667 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:51:02,669 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:51:02,670 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:51:02,670 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:51:02,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.02 02:51:02 BoogieIcfgContainer [2025-02-08 14:51:02,697 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-08 14:51:02,698 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:51:02,698 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:51:02,698 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:51:02,698 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:51:00" (3/4) ... [2025-02-08 14:51:02,700 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-02-08 14:51:02,724 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 14:51:02,724 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:51:02,725 INFO L158 Benchmark]: Toolchain (without parser) took 2258.22ms. Allocated memory is still 142.6MB. Free memory was 112.6MB in the beginning and 48.8MB in the end (delta: 63.8MB). Peak memory consumption was 60.0MB. Max. memory is 16.1GB. [2025-02-08 14:51:02,726 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 226.5MB. Free memory is still 147.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:51:02,726 INFO L158 Benchmark]: CACSL2BoogieTranslator took 144.25ms. Allocated memory is still 142.6MB. Free memory was 112.1MB in the beginning and 101.6MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:51:02,726 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.68ms. Allocated memory is still 142.6MB. Free memory was 101.6MB in the beginning and 100.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:51:02,726 INFO L158 Benchmark]: Boogie Preprocessor took 20.24ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 98.6MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:51:02,727 INFO L158 Benchmark]: IcfgBuilder took 267.57ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 84.8MB in the end (delta: 13.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:51:02,727 INFO L158 Benchmark]: BuchiAutomizer took 1776.57ms. Allocated memory is still 142.6MB. Free memory was 84.8MB in the beginning and 51.5MB in the end (delta: 33.4MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2025-02-08 14:51:02,730 INFO L158 Benchmark]: Witness Printer took 26.66ms. Allocated memory is still 142.6MB. Free memory was 51.5MB in the beginning and 48.8MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:51:02,731 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 226.5MB. Free memory is still 147.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 144.25ms. Allocated memory is still 142.6MB. Free memory was 112.1MB in the beginning and 101.6MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.68ms. Allocated memory is still 142.6MB. Free memory was 101.6MB in the beginning and 100.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.24ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 98.6MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 267.57ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 84.8MB in the end (delta: 13.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1776.57ms. Allocated memory is still 142.6MB. Free memory was 84.8MB in the beginning and 51.5MB in the end (delta: 33.4MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. * Witness Printer took 26.66ms. Allocated memory is still 142.6MB. Free memory was 51.5MB in the beginning and 48.8MB in the end (delta: 2.6MB). 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 1.7s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. 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: 62]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L87] unsigned int array[10000]; [L88] unsigned int index = 0; [L88] unsigned int index = 0; [L89] unsigned int tmp = 0; [L89] unsigned int tmp = 0; [L90] CALL func_to_recursive_line_39_to_45_0(&array, &index, &tmp) VAL [\old(array)={12137:0}, \old(index)={12135:0}, \old(tmp)={12136:0}] Loop: [L64] COND TRUE 1 [L67] *index = __VERIFIER_nondet_uint() [L68] EXPR \read(*index) [L68] COND FALSE !((*index) >= 10000) [L75] EXPR \read(*index) [L75] EXPR \read(*index) [L75] (*array)[*index] = *index [L76] EXPR \read(*index) [L76] *tmp = *index [L78] CALL func_to_recursive_line_39_to_45_0(array, index, tmp) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 62]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L87] unsigned int array[10000]; [L88] unsigned int index = 0; [L88] unsigned int index = 0; [L89] unsigned int tmp = 0; [L89] unsigned int tmp = 0; [L90] CALL func_to_recursive_line_39_to_45_0(&array, &index, &tmp) VAL [\old(array)={12137:0}, \old(index)={12135:0}, \old(tmp)={12136:0}] Loop: [L64] COND TRUE 1 [L67] *index = __VERIFIER_nondet_uint() [L68] EXPR \read(*index) [L68] COND FALSE !((*index) >= 10000) [L75] EXPR \read(*index) [L75] EXPR \read(*index) [L75] (*array)[*index] = *index [L76] EXPR \read(*index) [L76] *tmp = *index [L78] CALL func_to_recursive_line_39_to_45_0(array, index, tmp) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-02-08 14:51:02,746 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)