./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a3ce1d43d9985905fc5bc027d31321425feb97f8a5ea33de69c9c87c25abb975 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 17:16:46,344 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 17:16:46,422 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 17:16:46,431 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 17:16:46,434 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 17:16:46,457 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 17:16:46,458 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 17:16:46,458 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 17:16:46,460 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 17:16:46,460 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 17:16:46,460 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 17:16:46,460 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 17:16:46,461 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 17:16:46,461 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 17:16:46,461 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 17:16:46,461 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 17:16:46,461 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 17:16:46,461 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 17:16:46,461 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 17:16:46,461 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 17:16:46,461 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 17:16:46,461 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 17:16:46,461 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 17:16:46,461 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 17:16:46,461 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 17:16:46,462 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 17:16:46,462 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:16:46,462 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:16:46,462 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:16:46,462 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:16:46,462 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 17:16:46,462 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:16:46,462 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:16:46,462 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:16:46,462 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:16:46,464 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 17:16:46,465 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 17:16:46,465 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 17:16:46,465 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 17:16:46,465 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 17:16:46,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 17:16:46,465 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 17:16:46,465 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 17:16:46,465 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 17:16:46,465 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 17:16:46,466 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3ce1d43d9985905fc5bc027d31321425feb97f8a5ea33de69c9c87c25abb975 [2025-01-09 17:16:46,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 17:16:46,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 17:16:46,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 17:16:46,794 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 17:16:46,795 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 17:16:46,797 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i [2025-01-09 17:16:48,174 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e71399ffb/23d17db240ce46d891e7018e8dc14bf2/FLAGcf596d943 [2025-01-09 17:16:48,766 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 17:16:48,767 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i [2025-01-09 17:16:48,812 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e71399ffb/23d17db240ce46d891e7018e8dc14bf2/FLAGcf596d943 [2025-01-09 17:16:48,828 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e71399ffb/23d17db240ce46d891e7018e8dc14bf2 [2025-01-09 17:16:48,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 17:16:48,832 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 17:16:48,833 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 17:16:48,833 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 17:16:48,837 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 17:16:48,838 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:16:48" (1/1) ... [2025-01-09 17:16:48,839 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48e935b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:48, skipping insertion in model container [2025-01-09 17:16:48,839 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:16:48" (1/1) ... [2025-01-09 17:16:48,920 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:16:49,155 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4489,4502] [2025-01-09 17:16:49,165 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4549,4562] [2025-01-09 17:16:50,867 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:50,868 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:50,868 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:50,869 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:50,870 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:50,881 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:50,882 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:50,883 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:50,884 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:50,886 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:50,886 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:50,887 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:50,887 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,005 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,006 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,029 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,030 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,035 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,037 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,051 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,052 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,052 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,053 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,053 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,054 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,054 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,086 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[230833,230846] [2025-01-09 17:16:52,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:16:52,118 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 17:16:52,129 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4489,4502] [2025-01-09 17:16:52,129 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4549,4562] [2025-01-09 17:16:52,172 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,173 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,173 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,173 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,175 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,180 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,181 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,181 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,181 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,182 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,182 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,182 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,183 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,256 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2025-01-09 17:16:52,393 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,394 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,400 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,403 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,405 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,406 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,413 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,414 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,415 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,415 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,416 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,416 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,416 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:52,439 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[230833,230846] [2025-01-09 17:16:52,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:16:52,655 INFO L204 MainTranslator]: Completed translation [2025-01-09 17:16:52,656 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:52 WrapperNode [2025-01-09 17:16:52,657 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 17:16:52,658 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 17:16:52,658 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 17:16:52,658 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 17:16:52,663 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:52" (1/1) ... [2025-01-09 17:16:52,751 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:52" (1/1) ... [2025-01-09 17:16:52,819 INFO L138 Inliner]: procedures = 763, calls = 2477, calls flagged for inlining = 68, calls inlined = 5, statements flattened = 533 [2025-01-09 17:16:52,820 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 17:16:52,821 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 17:16:52,821 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 17:16:52,821 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 17:16:52,830 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:52" (1/1) ... [2025-01-09 17:16:52,830 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:52" (1/1) ... [2025-01-09 17:16:52,840 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:52" (1/1) ... [2025-01-09 17:16:52,923 INFO L175 MemorySlicer]: Split 353 memory accesses to 7 slices as follows [2, 238, 7, 3, 7, 91, 5]. 67 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 6, 1, 0, 1, 0, 5]. The 244 writes are split as follows [0, 232, 4, 1, 4, 3, 0]. [2025-01-09 17:16:52,926 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:52" (1/1) ... [2025-01-09 17:16:52,926 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:52" (1/1) ... [2025-01-09 17:16:52,979 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:52" (1/1) ... [2025-01-09 17:16:52,987 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:52" (1/1) ... [2025-01-09 17:16:52,996 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:52" (1/1) ... [2025-01-09 17:16:53,006 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:52" (1/1) ... [2025-01-09 17:16:53,010 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:52" (1/1) ... [2025-01-09 17:16:53,021 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 17:16:53,022 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 17:16:53,025 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 17:16:53,025 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 17:16:53,026 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:52" (1/1) ... [2025-01-09 17:16:53,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:16:53,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:16:53,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 17:16:53,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 17:16:53,087 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2025-01-09 17:16:53,087 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2025-01-09 17:16:53,087 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2025-01-09 17:16:53,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2025-01-09 17:16:53,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 17:16:53,088 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-01-09 17:16:53,088 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-01-09 17:16:53,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 17:16:53,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 17:16:53,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 17:16:53,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 17:16:53,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 17:16:53,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-01-09 17:16:53,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-01-09 17:16:53,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 17:16:53,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 17:16:53,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 17:16:53,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 17:16:53,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 17:16:53,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 17:16:53,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-01-09 17:16:53,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 17:16:53,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 17:16:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 17:16:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 17:16:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 17:16:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 17:16:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 17:16:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 17:16:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 17:16:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-01-09 17:16:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-01-09 17:16:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 17:16:53,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 17:16:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 17:16:53,092 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 17:16:53,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 17:16:53,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 17:16:53,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 17:16:53,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 17:16:53,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 17:16:53,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-01-09 17:16:53,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-01-09 17:16:53,094 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2025-01-09 17:16:53,094 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2025-01-09 17:16:53,094 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 17:16:53,094 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 17:16:53,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 17:16:53,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 17:16:53,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 17:16:53,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 17:16:53,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 17:16:53,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 17:16:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-01-09 17:16:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-01-09 17:16:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-01-09 17:16:53,095 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-01-09 17:16:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure hashlittle2 [2025-01-09 17:16:53,095 INFO L138 BoogieDeclarations]: Found implementation of procedure hashlittle2 [2025-01-09 17:16:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-01-09 17:16:53,095 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-01-09 17:16:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 17:16:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 17:16:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 17:16:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 17:16:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 17:16:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 17:16:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-01-09 17:16:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 17:16:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 17:16:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 17:16:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 17:16:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 17:16:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 17:16:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 17:16:53,432 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 17:16:53,435 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 17:16:54,490 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2025-01-09 17:16:59,982 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2025-01-09 17:16:59,982 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2025-01-09 17:17:00,049 INFO L? ?]: Removed 381 outVars from TransFormulas that were not future-live. [2025-01-09 17:17:00,049 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 17:17:00,070 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 17:17:00,072 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 17:17:00,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:17:00 BoogieIcfgContainer [2025-01-09 17:17:00,072 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 17:17:00,074 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 17:17:00,075 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 17:17:00,079 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 17:17:00,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:16:48" (1/3) ... [2025-01-09 17:17:00,080 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@486e38a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:17:00, skipping insertion in model container [2025-01-09 17:17:00,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:52" (2/3) ... [2025-01-09 17:17:00,081 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@486e38a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:17:00, skipping insertion in model container [2025-01-09 17:17:00,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:17:00" (3/3) ... [2025-01-09 17:17:00,082 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_string_harness.i [2025-01-09 17:17:00,095 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 17:17:00,098 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_string_harness.i that has 11 procedures, 351 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2025-01-09 17:17:00,159 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 17:17:00,171 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@60b3916, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 17:17:00,171 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 17:17:00,178 INFO L276 IsEmpty]: Start isEmpty. Operand has 351 states, 325 states have (on average 1.5507692307692307) internal successors, (504), 325 states have internal predecessors, (504), 15 states have call successors, (15), 10 states have call predecessors, (15), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-01-09 17:17:00,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-01-09 17:17:00,194 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:17:00,195 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:17:00,196 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:17:00,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:17:00,200 INFO L85 PathProgramCache]: Analyzing trace with hash -363620742, now seen corresponding path program 1 times [2025-01-09 17:17:00,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:17:00,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252882384] [2025-01-09 17:17:00,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:00,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:17:05,132 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-01-09 17:17:05,578 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-01-09 17:17:05,579 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:05,579 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:10,377 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-01-09 17:17:10,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:17:10,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252882384] [2025-01-09 17:17:10,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252882384] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:17:10,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467047332] [2025-01-09 17:17:10,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:10,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:17:10,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:17:10,384 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 17:17:10,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 17:17:14,951 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-01-09 17:17:15,569 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-01-09 17:17:15,570 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:15,570 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:15,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 4185 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-01-09 17:17:15,606 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:17:20,343 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-01-09 17:17:20,345 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:17:20,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467047332] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:17:20,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:17:20,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 24 [2025-01-09 17:17:20,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474524912] [2025-01-09 17:17:20,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:17:20,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 17:17:20,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:17:20,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 17:17:20,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=503, Unknown=0, NotChecked=0, Total=552 [2025-01-09 17:17:20,381 INFO L87 Difference]: Start difference. First operand has 351 states, 325 states have (on average 1.5507692307692307) internal successors, (504), 325 states have internal predecessors, (504), 15 states have call successors, (15), 10 states have call predecessors, (15), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 13 states, 12 states have (on average 5.25) internal successors, (63), 11 states have internal predecessors, (63), 4 states have call successors, (14), 2 states have call predecessors, (14), 5 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2025-01-09 17:17:22,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:17:22,814 INFO L93 Difference]: Finished difference Result 699 states and 1076 transitions. [2025-01-09 17:17:22,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-09 17:17:22,817 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.25) internal successors, (63), 11 states have internal predecessors, (63), 4 states have call successors, (14), 2 states have call predecessors, (14), 5 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 102 [2025-01-09 17:17:22,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:17:22,826 INFO L225 Difference]: With dead ends: 699 [2025-01-09 17:17:22,827 INFO L226 Difference]: Without dead ends: 346 [2025-01-09 17:17:22,831 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=65, Invalid=637, Unknown=0, NotChecked=0, Total=702 [2025-01-09 17:17:22,834 INFO L435 NwaCegarLoop]: 519 mSDtfsCounter, 12 mSDsluCounter, 5159 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 5678 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-01-09 17:17:22,835 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 5678 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-01-09 17:17:22,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2025-01-09 17:17:22,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 343. [2025-01-09 17:17:22,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 317 states have (on average 1.5520504731861198) internal successors, (492), 318 states have internal predecessors, (492), 15 states have call successors, (15), 10 states have call predecessors, (15), 10 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) [2025-01-09 17:17:22,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 523 transitions. [2025-01-09 17:17:22,906 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 523 transitions. Word has length 102 [2025-01-09 17:17:22,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:17:22,907 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 523 transitions. [2025-01-09 17:17:22,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.25) internal successors, (63), 11 states have internal predecessors, (63), 4 states have call successors, (14), 2 states have call predecessors, (14), 5 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2025-01-09 17:17:22,907 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 523 transitions. [2025-01-09 17:17:22,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-01-09 17:17:22,911 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:17:22,912 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:17:22,927 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 17:17:23,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-01-09 17:17:23,113 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:17:23,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:17:23,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1042892996, now seen corresponding path program 1 times [2025-01-09 17:17:23,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:17:23,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762771354] [2025-01-09 17:17:23,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:23,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:17:27,414 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-01-09 17:17:27,584 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-01-09 17:17:27,585 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:27,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:32,652 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-01-09 17:17:32,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:17:32,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762771354] [2025-01-09 17:17:32,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762771354] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:17:32,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262464860] [2025-01-09 17:17:32,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:32,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:17:32,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:17:32,655 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 17:17:32,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-09 17:17:37,095 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-01-09 17:17:37,595 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-01-09 17:17:37,596 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:37,596 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:37,616 INFO L256 TraceCheckSpWp]: Trace formula consists of 4190 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-01-09 17:17:37,628 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:17:44,284 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-01-09 17:17:44,284 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:17:44,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262464860] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:17:44,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:17:44,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [16] total 30 [2025-01-09 17:17:44,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633034319] [2025-01-09 17:17:44,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:17:44,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-01-09 17:17:44,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:17:44,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-01-09 17:17:44,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=809, Unknown=0, NotChecked=0, Total=870 [2025-01-09 17:17:44,287 INFO L87 Difference]: Start difference. First operand 343 states and 523 transitions. Second operand has 16 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 7 states have call successors, (14), 2 states have call predecessors, (14), 6 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2025-01-09 17:17:47,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:17:47,935 INFO L93 Difference]: Finished difference Result 646 states and 1002 transitions. [2025-01-09 17:17:47,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-01-09 17:17:47,936 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 7 states have call successors, (14), 2 states have call predecessors, (14), 6 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 102 [2025-01-09 17:17:47,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:17:47,939 INFO L225 Difference]: With dead ends: 646 [2025-01-09 17:17:47,939 INFO L226 Difference]: Without dead ends: 343 [2025-01-09 17:17:47,942 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=81, Invalid=1041, Unknown=0, NotChecked=0, Total=1122 [2025-01-09 17:17:47,942 INFO L435 NwaCegarLoop]: 506 mSDtfsCounter, 14 mSDsluCounter, 6536 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 7042 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-01-09 17:17:47,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 7042 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-01-09 17:17:47,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2025-01-09 17:17:47,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 340. [2025-01-09 17:17:47,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 315 states have (on average 1.5523809523809524) internal successors, (489), 315 states have internal predecessors, (489), 15 states have call successors, (15), 10 states have call predecessors, (15), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-01-09 17:17:47,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 518 transitions. [2025-01-09 17:17:47,970 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 518 transitions. Word has length 102 [2025-01-09 17:17:47,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:17:47,971 INFO L471 AbstractCegarLoop]: Abstraction has 340 states and 518 transitions. [2025-01-09 17:17:47,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 7 states have call successors, (14), 2 states have call predecessors, (14), 6 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2025-01-09 17:17:47,971 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 518 transitions. [2025-01-09 17:17:47,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-01-09 17:17:47,972 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:17:47,973 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:17:47,995 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 17:17:48,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:17:48,174 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:17:48,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:17:48,174 INFO L85 PathProgramCache]: Analyzing trace with hash 2133148224, now seen corresponding path program 1 times [2025-01-09 17:17:48,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:17:48,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036205951] [2025-01-09 17:17:48,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:48,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:17:51,771 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-01-09 17:17:55,005 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-01-09 17:17:55,006 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:55,006 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat