./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 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/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-?-48c9605-m [2025-02-08 01:48:35,258 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:48:35,309 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-08 01:48:35,313 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:48:35,313 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:48:35,328 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:48:35,329 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:48:35,329 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:48:35,330 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:48:35,330 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:48:35,330 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:48:35,330 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:48:35,330 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:48:35,330 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:48:35,330 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:48:35,330 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:48:35,331 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:48:35,331 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:48:35,331 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:48:35,331 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:48:35,331 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:48:35,331 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:48:35,331 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:48:35,331 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:48:35,331 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:48:35,331 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:48:35,332 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:48:35,332 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:48:35,332 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:48:35,332 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:48:35,332 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:48:35,332 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:48:35,332 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:48:35,332 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:48:35,332 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:48:35,332 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:48:35,332 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:48:35,333 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:48:35,333 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:48:35,333 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:48:35,333 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 [2025-02-08 01:48:35,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:48:35,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:48:35,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:48:35,619 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:48:35,620 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:48:35,621 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i [2025-02-08 01:48:36,841 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5ecf0751c/894cbfefe2f54508bcaa1914d3115226/FLAG23d5e781c [2025-02-08 01:48:37,461 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:48:37,463 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i [2025-02-08 01:48:37,500 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5ecf0751c/894cbfefe2f54508bcaa1914d3115226/FLAG23d5e781c [2025-02-08 01:48:37,951 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5ecf0751c/894cbfefe2f54508bcaa1914d3115226 [2025-02-08 01:48:37,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:48:37,955 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:48:37,957 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:48:37,957 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:48:37,960 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:48:37,965 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:48:37" (1/1) ... [2025-02-08 01:48:37,966 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@654ad635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:37, skipping insertion in model container [2025-02-08 01:48:37,966 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:48:37" (1/1) ... [2025-02-08 01:48:38,036 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:48:38,268 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] [2025-02-08 01:48:38,276 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] [2025-02-08 01:48:39,678 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:39,679 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:39,679 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:39,680 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:39,680 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:39,688 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:39,689 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:39,690 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:39,690 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:39,691 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:39,692 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:39,692 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:39,693 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,469 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,470 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,494 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,495 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,501 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,503 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,516 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,517 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,517 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,517 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,517 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,518 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,518 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,555 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] [2025-02-08 01:48:40,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:48:40,581 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:48:40,589 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] [2025-02-08 01:48:40,589 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] [2025-02-08 01:48:40,612 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,612 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,613 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,613 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,613 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,617 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,617 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,618 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,618 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,619 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,619 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,619 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,619 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,662 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2025-02-08 01:48:40,754 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,755 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,759 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,759 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,761 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,761 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,765 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,766 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,766 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,766 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,766 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,766 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,767 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:48:40,780 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] [2025-02-08 01:48:40,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:48:40,928 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:48:40,929 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:40 WrapperNode [2025-02-08 01:48:40,929 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:48:40,930 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:48:40,930 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:48:40,930 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:48:40,934 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:40" (1/1) ... [2025-02-08 01:48:41,028 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:40" (1/1) ... [2025-02-08 01:48:41,077 INFO L138 Inliner]: procedures = 763, calls = 2477, calls flagged for inlining = 68, calls inlined = 5, statements flattened = 533 [2025-02-08 01:48:41,079 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:48:41,080 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:48:41,080 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:48:41,080 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:48:41,087 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:40" (1/1) ... [2025-02-08 01:48:41,088 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:40" (1/1) ... [2025-02-08 01:48:41,096 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:40" (1/1) ... [2025-02-08 01:48:41,160 INFO L175 MemorySlicer]: Split 353 memory accesses to 7 slices as follows [2, 7, 238, 7, 91, 5, 3]. 67 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 1, 6, 1, 0, 5, 0]. The 244 writes are split as follows [0, 4, 232, 4, 3, 0, 1]. [2025-02-08 01:48:41,160 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:40" (1/1) ... [2025-02-08 01:48:41,161 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:40" (1/1) ... [2025-02-08 01:48:41,201 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:40" (1/1) ... [2025-02-08 01:48:41,208 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:40" (1/1) ... [2025-02-08 01:48:41,219 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:40" (1/1) ... [2025-02-08 01:48:41,230 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:40" (1/1) ... [2025-02-08 01:48:41,246 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:48:41,247 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:48:41,247 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:48:41,247 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:48:41,247 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:40" (1/1) ... [2025-02-08 01:48:41,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:48:41,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:48:41,279 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) [2025-02-08 01:48:41,286 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 [2025-02-08 01:48:41,303 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2025-02-08 01:48:41,303 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2025-02-08 01:48:41,303 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2025-02-08 01:48:41,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2025-02-08 01:48:41,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 01:48:41,303 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-08 01:48:41,303 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-08 01:48:41,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-08 01:48:41,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-08 01:48:41,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-08 01:48:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-08 01:48:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-08 01:48:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-08 01:48:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-02-08 01:48:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 01:48:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 01:48:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 01:48:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 01:48:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-08 01:48:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-08 01:48:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-08 01:48:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 01:48:41,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 01:48:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 01:48:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:48:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 01:48:41,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 01:48:41,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 01:48:41,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-08 01:48:41,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-08 01:48:41,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-08 01:48:41,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-02-08 01:48:41,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:48:41,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:48:41,305 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-08 01:48:41,305 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-08 01:48:41,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-08 01:48:41,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-08 01:48:41,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-08 01:48:41,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-08 01:48:41,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-08 01:48:41,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-08 01:48:41,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-02-08 01:48:41,306 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2025-02-08 01:48:41,306 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2025-02-08 01:48:41,306 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-08 01:48:41,306 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-08 01:48:41,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 01:48:41,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 01:48:41,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 01:48:41,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-08 01:48:41,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-08 01:48:41,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-08 01:48:41,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-08 01:48:41,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-02-08 01:48:41,308 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-08 01:48:41,309 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-08 01:48:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure hashlittle2 [2025-02-08 01:48:41,309 INFO L138 BoogieDeclarations]: Found implementation of procedure hashlittle2 [2025-02-08 01:48:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-02-08 01:48:41,309 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-02-08 01:48:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 01:48:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 01:48:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 01:48:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 01:48:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-08 01:48:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-08 01:48:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-08 01:48:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:48:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:48:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 01:48:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 01:48:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-08 01:48:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-08 01:48:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-08 01:48:41,542 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:48:41,546 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:48:41,617 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: havoc #t~malloc588.base, #t~malloc588.offset; [2025-02-08 01:48:41,642 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6305: havoc #t~mem498;havoc #t~short499;havoc #t~mem500;havoc #t~mem501;havoc #t~short502; [2025-02-08 01:48:41,645 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-02-08 01:48:41,654 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-08 01:48:41,674 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6864: havoc #t~ret574#1.base, #t~ret574#1.offset; [2025-02-08 01:48:47,394 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L9951-2: havoc aws_hash_string_#t~mem1477#1;havoc aws_hash_string_#t~mem1478#1;havoc aws_hash_string_#t~bitwise1479#1; [2025-02-08 01:48:47,394 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L9951-1: assume false; [2025-02-08 01:48:47,394 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L9951-1: assume !false; [2025-02-08 01:48:47,487 INFO L? ?]: Removed 412 outVars from TransFormulas that were not future-live. [2025-02-08 01:48:47,487 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:48:47,535 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:48:47,535 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:48:47,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:48:47 BoogieIcfgContainer [2025-02-08 01:48:47,536 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:48:47,538 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:48:47,538 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:48:47,541 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:48:47,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:48:37" (1/3) ... [2025-02-08 01:48:47,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@218f8fee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:48:47, skipping insertion in model container [2025-02-08 01:48:47,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:48:40" (2/3) ... [2025-02-08 01:48:47,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@218f8fee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:48:47, skipping insertion in model container [2025-02-08 01:48:47,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:48:47" (3/3) ... [2025-02-08 01:48:47,543 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_string_harness.i [2025-02-08 01:48:47,553 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:48:47,554 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_string_harness.i that has 11 procedures, 348 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2025-02-08 01:48:47,604 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:48:47,612 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;@221946c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:48:47,612 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 01:48:47,616 INFO L276 IsEmpty]: Start isEmpty. Operand has 348 states, 317 states have (on average 1.5678233438485805) internal successors, (497), 322 states have internal predecessors, (497), 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) [2025-02-08 01:48:47,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2025-02-08 01:48:47,629 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:48:47,629 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] [2025-02-08 01:48:47,630 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:48:47,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:48:47,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1912592274, now seen corresponding path program 1 times [2025-02-08 01:48:47,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:48:47,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13065022] [2025-02-08 01:48:47,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:48:47,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:48:52,250 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-02-08 01:48:52,635 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-02-08 01:48:52,636 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:48:52,636 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:48:53,059 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-02-08 01:48:53,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:48:53,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13065022] [2025-02-08 01:48:53,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13065022] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:48:53,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977755018] [2025-02-08 01:48:53,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:48:53,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:48:53,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:48:53,065 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) [2025-02-08 01:48:53,067 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 [2025-02-08 01:48:57,388 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-02-08 01:48:57,881 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-02-08 01:48:57,881 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:48:57,881 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:48:57,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 4200 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-08 01:48:57,913 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:48:57,932 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-02-08 01:48:57,933 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:48:57,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977755018] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:48:57,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:48:57,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-08 01:48:57,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972448739] [2025-02-08 01:48:57,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:48:57,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 01:48:57,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:48:57,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 01:48:57,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:48:57,967 INFO L87 Difference]: Start difference. First operand has 348 states, 317 states have (on average 1.5678233438485805) internal successors, (497), 322 states have internal predecessors, (497), 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 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-02-08 01:48:58,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:48:58,564 INFO L93 Difference]: Finished difference Result 684 states and 1049 transitions. [2025-02-08 01:48:58,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 01:48:58,566 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2025-02-08 01:48:58,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:48:58,575 INFO L225 Difference]: With dead ends: 684 [2025-02-08 01:48:58,575 INFO L226 Difference]: Without dead ends: 334 [2025-02-08 01:48:58,578 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:48:58,581 INFO L435 NwaCegarLoop]: 471 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-08 01:48:58,582 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 471 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-08 01:48:58,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2025-02-08 01:48:58,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2025-02-08 01:48:58,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 309 states have (on average 1.4983818770226538) internal successors, (463), 309 states have internal predecessors, (463), 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) [2025-02-08 01:48:58,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 492 transitions. [2025-02-08 01:48:58,658 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 492 transitions. Word has length 101 [2025-02-08 01:48:58,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:48:58,658 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 492 transitions. [2025-02-08 01:48:58,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-02-08 01:48:58,662 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 492 transitions. [2025-02-08 01:48:58,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2025-02-08 01:48:58,666 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:48:58,666 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] [2025-02-08 01:48:58,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-08 01:48:58,871 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 [2025-02-08 01:48:58,872 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:48:58,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:48:58,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1847955946, now seen corresponding path program 1 times [2025-02-08 01:48:58,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:48:58,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583467284] [2025-02-08 01:48:58,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:48:58,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:49:03,064 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-02-08 01:49:06,112 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-02-08 01:49:06,112 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:49:06,112 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:49:23,218 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-02-08 01:49:23,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:49:23,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583467284] [2025-02-08 01:49:23,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583467284] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:49:23,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758281273] [2025-02-08 01:49:23,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:49:23,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:49:23,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:49:23,222 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) [2025-02-08 01:49:23,224 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 [2025-02-08 01:49:27,601 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-02-08 01:49:28,061 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-02-08 01:49:28,061 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:49:28,061 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:49:28,081 INFO L256 TraceCheckSpWp]: Trace formula consists of 4200 conjuncts, 132 conjuncts are in the unsatisfiable core [2025-02-08 01:49:28,089 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:49:31,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 53 [2025-02-08 01:49:32,227 INFO L349 Elim1Store]: treesize reduction 32, result has 45.8 percent of original size [2025-02-08 01:49:32,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 96 [2025-02-08 01:49:32,555 INFO L349 Elim1Store]: treesize reduction 87, result has 1.1 percent of original size [2025-02-08 01:49:32,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 134 treesize of output 73