./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_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_callback_string_eq_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 617e08addfe2d13b261907959d3757079a581721356bb3e7b4090decaff2b168 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 17:15:10,956 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 17:15:11,020 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 17:15:11,024 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 17:15:11,027 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 17:15:11,058 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 17:15:11,059 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 17:15:11,059 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 17:15:11,060 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 17:15:11,060 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 17:15:11,061 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 17:15:11,061 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 17:15:11,061 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 17:15:11,061 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 17:15:11,062 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 17:15:11,062 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 17:15:11,062 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 17:15:11,062 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 17:15:11,062 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 17:15:11,063 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 17:15:11,063 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 17:15:11,063 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 17:15:11,063 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 17:15:11,063 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 17:15:11,063 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 17:15:11,063 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 17:15:11,063 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:15:11,064 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:15:11,064 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:15:11,064 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:15:11,065 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 17:15:11,065 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:15:11,065 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:15:11,065 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:15:11,065 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:15:11,065 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 17:15:11,065 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 17:15:11,065 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 17:15:11,065 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 17:15:11,066 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 17:15:11,066 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 17:15:11,066 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 17:15:11,066 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 17:15:11,066 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 17:15:11,066 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 17:15:11,067 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 -> 617e08addfe2d13b261907959d3757079a581721356bb3e7b4090decaff2b168 [2025-01-09 17:15:11,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 17:15:11,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 17:15:11,315 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 17:15:11,316 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 17:15:11,317 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 17:15:11,319 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i [2025-01-09 17:15:12,649 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cfb114913/8bdd000187df4bc195b3b511e098bf89/FLAG4c0f4849c [2025-01-09 17:15:13,305 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 17:15:13,306 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i [2025-01-09 17:15:13,349 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cfb114913/8bdd000187df4bc195b3b511e098bf89/FLAG4c0f4849c [2025-01-09 17:15:13,364 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cfb114913/8bdd000187df4bc195b3b511e098bf89 [2025-01-09 17:15:13,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 17:15:13,368 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 17:15:13,369 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 17:15:13,370 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 17:15:13,373 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 17:15:13,374 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:15:13" (1/1) ... [2025-01-09 17:15:13,375 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@269a2a58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:13, skipping insertion in model container [2025-01-09 17:15:13,375 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:15:13" (1/1) ... [2025-01-09 17:15:13,464 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:15:13,766 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_callback_string_eq_harness.i[4501,4514] [2025-01-09 17:15:13,775 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_callback_string_eq_harness.i[4561,4574] [2025-01-09 17:15:14,521 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:14,522 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:14,522 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:14,523 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:14,523 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:14,539 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:14,540 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:14,541 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:14,542 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,152 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,152 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,411 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,411 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,433 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,434 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,438 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,439 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,449 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,450 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,450 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,450 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,450 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,450 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,451 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:15:15,537 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 17:15:15,549 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_callback_string_eq_harness.i[4501,4514] [2025-01-09 17:15:15,549 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_callback_string_eq_harness.i[4561,4574] [2025-01-09 17:15:15,585 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,586 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,586 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,586 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,587 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,592 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,592 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,593 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,593 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,687 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8255] [2025-01-09 17:15:15,688 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,689 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,833 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,833 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,842 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,843 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,845 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,845 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,854 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,854 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,854 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,855 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,855 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,855 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,856 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:15:16,056 INFO L204 MainTranslator]: Completed translation [2025-01-09 17:15:16,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:16 WrapperNode [2025-01-09 17:15:16,057 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 17:15:16,058 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 17:15:16,058 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 17:15:16,058 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 17:15:16,064 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:16" (1/1) ... [2025-01-09 17:15:16,151 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:16" (1/1) ... [2025-01-09 17:15:16,215 INFO L138 Inliner]: procedures = 757, calls = 3256, calls flagged for inlining = 77, calls inlined = 7, statements flattened = 402 [2025-01-09 17:15:16,215 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 17:15:16,216 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 17:15:16,216 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 17:15:16,216 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 17:15:16,223 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:16" (1/1) ... [2025-01-09 17:15:16,223 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:16" (1/1) ... [2025-01-09 17:15:16,228 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:16" (1/1) ... [2025-01-09 17:15:16,254 INFO L175 MemorySlicer]: Split 277 memory accesses to 4 slices as follows [2, 257, 5, 13]. 93 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 0, 5, 0]. The 260 writes are split as follows [0, 257, 0, 3]. [2025-01-09 17:15:16,255 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:16" (1/1) ... [2025-01-09 17:15:16,255 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:16" (1/1) ... [2025-01-09 17:15:16,288 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:16" (1/1) ... [2025-01-09 17:15:16,290 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:16" (1/1) ... [2025-01-09 17:15:16,294 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:16" (1/1) ... [2025-01-09 17:15:16,307 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:16" (1/1) ... [2025-01-09 17:15:16,310 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:16" (1/1) ... [2025-01-09 17:15:16,316 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 17:15:16,317 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 17:15:16,317 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 17:15:16,317 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 17:15:16,318 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:16" (1/1) ... [2025-01-09 17:15:16,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:15:16,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:15:16,350 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 17:15:16,356 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 17:15:16,376 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2025-01-09 17:15:16,376 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2025-01-09 17:15:16,376 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2025-01-09 17:15:16,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2025-01-09 17:15:16,376 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-01-09 17:15:16,377 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-01-09 17:15:16,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 17:15:16,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 17:15:16,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 17:15:16,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 17:15:16,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 17:15:16,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 17:15:16,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 17:15:16,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 17:15:16,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 17:15:16,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 17:15:16,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 17:15:16,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 17:15:16,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 17:15:16,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 17:15:16,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 17:15:16,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 17:15:16,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 17:15:16,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 17:15:16,379 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 17:15:16,379 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 17:15:16,379 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 17:15:16,379 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 17:15:16,380 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2025-01-09 17:15:16,380 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2025-01-09 17:15:16,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 17:15:16,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 17:15:16,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 17:15:16,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 17:15:16,380 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-01-09 17:15:16,380 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-01-09 17:15:16,381 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-01-09 17:15:16,381 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-01-09 17:15:16,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 17:15:16,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 17:15:16,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 17:15:16,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 17:15:16,381 INFO L130 BoogieDeclarations]: Found specification of procedure aws_c_string_is_valid [2025-01-09 17:15:16,381 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_c_string_is_valid [2025-01-09 17:15:16,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 17:15:16,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 17:15:16,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 17:15:16,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 17:15:16,685 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 17:15:16,687 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 17:15:16,830 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2025-01-09 17:15:23,449 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2025-01-09 17:15:23,450 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2025-01-09 17:15:23,554 INFO L? ?]: Removed 82 outVars from TransFormulas that were not future-live. [2025-01-09 17:15:23,554 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 17:15:23,563 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 17:15:23,564 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 17:15:23,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:15:23 BoogieIcfgContainer [2025-01-09 17:15:23,564 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 17:15:23,566 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 17:15:23,567 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 17:15:23,570 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 17:15:23,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:15:13" (1/3) ... [2025-01-09 17:15:23,571 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a013456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:15:23, skipping insertion in model container [2025-01-09 17:15:23,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:16" (2/3) ... [2025-01-09 17:15:23,571 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a013456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:15:23, skipping insertion in model container [2025-01-09 17:15:23,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:15:23" (3/3) ... [2025-01-09 17:15:23,573 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_callback_string_eq_harness.i [2025-01-09 17:15:23,585 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 17:15:23,586 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_callback_string_eq_harness.i that has 11 procedures, 110 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 17:15:23,639 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 17:15:23,650 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;@789e2935, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 17:15:23,650 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 17:15:23,654 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 71 states have (on average 1.2253521126760563) internal successors, (87), 71 states have internal predecessors, (87), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2025-01-09 17:15:23,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-01-09 17:15:23,662 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:15:23,662 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 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] [2025-01-09 17:15:23,663 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:15:23,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:15:23,667 INFO L85 PathProgramCache]: Analyzing trace with hash 436511225, now seen corresponding path program 1 times [2025-01-09 17:15:23,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:15:23,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148100103] [2025-01-09 17:15:23,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:15:23,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:16:05,211 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-01-09 17:16:05,675 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-01-09 17:16:05,676 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:05,676 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:06,273 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-01-09 17:16:06,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:16:06,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148100103] [2025-01-09 17:16:06,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148100103] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:16:06,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858657698] [2025-01-09 17:16:06,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:06,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:16:06,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:16:06,279 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 17:16:06,281 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 17:16:49,050 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-01-09 17:16:49,693 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-01-09 17:16:49,693 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:49,693 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:49,716 INFO L256 TraceCheckSpWp]: Trace formula consists of 3973 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 17:16:49,725 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:16:49,740 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-01-09 17:16:49,740 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:16:49,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858657698] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:16:49,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:16:49,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 17:16:49,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964449567] [2025-01-09 17:16:49,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:16:49,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 17:16:49,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:16:49,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 17:16:49,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 17:16:49,764 INFO L87 Difference]: Start difference. First operand has 110 states, 71 states have (on average 1.2253521126760563) internal successors, (87), 71 states have internal predecessors, (87), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 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) [2025-01-09 17:16:49,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:16:49,793 INFO L93 Difference]: Finished difference Result 217 states and 299 transitions. [2025-01-09 17:16:49,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 17:16:49,795 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 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 93 [2025-01-09 17:16:49,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:16:49,802 INFO L225 Difference]: With dead ends: 217 [2025-01-09 17:16:49,802 INFO L226 Difference]: Without dead ends: 104 [2025-01-09 17:16:49,805 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 17:16:49,807 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 17:16:49,808 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 17:16:49,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2025-01-09 17:16:49,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2025-01-09 17:16:49,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 65 states have (on average 1.1846153846153846) internal successors, (77), 66 states have internal predecessors, (77), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2025-01-09 17:16:49,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 132 transitions. [2025-01-09 17:16:49,847 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 132 transitions. Word has length 93 [2025-01-09 17:16:49,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:16:49,848 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 132 transitions. [2025-01-09 17:16:49,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 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) [2025-01-09 17:16:49,849 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 132 transitions. [2025-01-09 17:16:49,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-01-09 17:16:49,852 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:16:49,853 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 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] [2025-01-09 17:16:49,869 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 17:16:50,054 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 17:16:50,054 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:16:50,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:16:50,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1648273971, now seen corresponding path program 1 times [2025-01-09 17:16:50,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:16:50,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748852068] [2025-01-09 17:16:50,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:50,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms