./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness_negated.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_negated.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 81878f133cf1520a898ab1dccc3c4ea8564ccc1e7b92efe6b8b73fb69d10ec78 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 17:15:12,409 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 17:15:12,461 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 17:15:12,468 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 17:15:12,468 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 17:15:12,487 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 17:15:12,487 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 17:15:12,488 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 17:15:12,488 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 17:15:12,488 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 17:15:12,488 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 17:15:12,488 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 17:15:12,488 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 17:15:12,488 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 17:15:12,489 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 17:15:12,492 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 17:15:12,492 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 17:15:12,493 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 17:15:12,493 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 17:15:12,493 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 17:15:12,493 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 17:15:12,493 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 17:15:12,493 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 17:15:12,493 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 17:15:12,493 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 17:15:12,493 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 17:15:12,493 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:15:12,493 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:15:12,493 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:15:12,493 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:15:12,493 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 17:15:12,493 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:15:12,493 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:15:12,493 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:15:12,493 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:15:12,493 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 17:15:12,493 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 17:15:12,493 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 17:15:12,493 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 17:15:12,493 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 17:15:12,493 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 17:15:12,494 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 17:15:12,494 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 17:15:12,494 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 17:15:12,494 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 17:15:12,494 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 -> 81878f133cf1520a898ab1dccc3c4ea8564ccc1e7b92efe6b8b73fb69d10ec78 [2025-01-09 17:15:12,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 17:15:12,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 17:15:12,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 17:15:12,722 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 17:15:12,722 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 17:15:12,723 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness_negated.i [2025-01-09 17:15:13,886 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/04fe32e9f/b3082ffc1a5d4cb28e2e59be9c2928c2/FLAGac89919ad [2025-01-09 17:15:14,382 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 17:15:14,382 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness_negated.i [2025-01-09 17:15:14,415 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/04fe32e9f/b3082ffc1a5d4cb28e2e59be9c2928c2/FLAGac89919ad [2025-01-09 17:15:14,469 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/04fe32e9f/b3082ffc1a5d4cb28e2e59be9c2928c2 [2025-01-09 17:15:14,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 17:15:14,472 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 17:15:14,473 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 17:15:14,473 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 17:15:14,475 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 17:15:14,476 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:15:14" (1/1) ... [2025-01-09 17:15:14,476 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25830abc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:14, skipping insertion in model container [2025-01-09 17:15:14,477 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:15:14" (1/1) ... [2025-01-09 17:15:14,554 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:15:14,738 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_negated.i[4501,4514] [2025-01-09 17:15:14,746 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_negated.i[4561,4574] [2025-01-09 17:15:15,353 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,354 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,354 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,355 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,355 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,363 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,364 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,365 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,365 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,776 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,776 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,973 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,973 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,985 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,985 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,988 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,988 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,994 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,995 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,995 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,995 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,995 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,995 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:15,996 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:16,020 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:15:16,045 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 17:15:16,053 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_negated.i[4501,4514] [2025-01-09 17:15:16,053 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_negated.i[4561,4574] [2025-01-09 17:15:16,086 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:16,086 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:16,086 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:16,086 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:16,087 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:16,090 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:16,091 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:16,091 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:16,091 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:16,144 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8223] [2025-01-09 17:15:16,146 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:16,147 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:16,242 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:16,243 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:16,247 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:16,251 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:16,252 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:16,252 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:16,256 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:16,256 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:16,256 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:16,256 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:16,256 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:16,257 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:16,257 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:16,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:15:16,447 INFO L204 MainTranslator]: Completed translation [2025-01-09 17:15:16,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:16 WrapperNode [2025-01-09 17:15:16,448 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 17:15:16,448 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 17:15:16,449 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 17:15:16,449 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 17:15:16,453 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 17:15:16,525 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 17:15:16,562 INFO L138 Inliner]: procedures = 757, calls = 3256, calls flagged for inlining = 77, calls inlined = 7, statements flattened = 402 [2025-01-09 17:15:16,562 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 17:15:16,563 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 17:15:16,563 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 17:15:16,563 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 17:15:16,569 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 17:15:16,569 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 17:15:16,572 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 17:15:16,590 INFO L175 MemorySlicer]: Split 277 memory accesses to 4 slices as follows [2, 257, 13, 5]. 93 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 0, 0, 5]. The 260 writes are split as follows [0, 257, 3, 0]. [2025-01-09 17:15:16,594 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 17:15:16,594 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 17:15:16,614 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 17:15:16,619 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 17:15:16,623 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 17:15:16,626 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 17:15:16,631 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 17:15:16,638 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 17:15:16,643 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 17:15:16,643 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 17:15:16,643 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 17:15:16,644 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 17:15:16,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:15:16,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:15:16,671 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 17:15:16,676 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 17:15:16,690 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2025-01-09 17:15:16,690 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2025-01-09 17:15:16,691 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2025-01-09 17:15:16,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2025-01-09 17:15:16,691 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-01-09 17:15:16,691 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-01-09 17:15:16,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 17:15:16,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 17:15:16,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 17:15:16,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 17:15:16,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 17:15:16,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 17:15:16,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 17:15:16,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 17:15:16,692 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 17:15:16,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 17:15:16,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 17:15:16,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 17:15:16,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 17:15:16,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 17:15:16,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 17:15:16,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 17:15:16,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 17:15:16,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 17:15:16,694 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 17:15:16,694 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 17:15:16,694 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 17:15:16,694 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 17:15:16,694 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2025-01-09 17:15:16,694 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2025-01-09 17:15:16,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 17:15:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 17:15:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 17:15:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 17:15:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-01-09 17:15:16,695 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-01-09 17:15:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-01-09 17:15:16,695 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-01-09 17:15:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 17:15:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 17:15:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 17:15:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 17:15:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure aws_c_string_is_valid [2025-01-09 17:15:16,695 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_c_string_is_valid [2025-01-09 17:15:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 17:15:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 17:15:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 17:15:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 17:15:16,873 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 17:15:16,874 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 17:15:16,949 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2025-01-09 17:15:22,963 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2025-01-09 17:15:22,963 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2025-01-09 17:15:23,029 INFO L? ?]: Removed 82 outVars from TransFormulas that were not future-live. [2025-01-09 17:15:23,029 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 17:15:23,035 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 17:15:23,035 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 17:15:23,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:15:23 BoogieIcfgContainer [2025-01-09 17:15:23,036 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 17:15:23,037 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 17:15:23,037 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 17:15:23,040 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 17:15:23,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:15:14" (1/3) ... [2025-01-09 17:15:23,040 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b99a3fe 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 17:15:23,040 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 17:15:23,040 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b99a3fe 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 17:15:23,040 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 17:15:23,041 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_callback_string_eq_harness_negated.i [2025-01-09 17:15:23,049 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 17:15:23,050 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_callback_string_eq_harness_negated.i that has 11 procedures, 110 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 17:15:23,082 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 17:15:23,092 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;@29e1d8c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 17:15:23,093 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 17:15:23,095 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 17:15:23,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-01-09 17:15:23,102 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:15:23,103 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 17:15:23,103 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:15:23,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:15:23,107 INFO L85 PathProgramCache]: Analyzing trace with hash 436511225, now seen corresponding path program 1 times [2025-01-09 17:15:23,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:15:23,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154938458] [2025-01-09 17:15:23,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:15:23,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:16:05,997 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-01-09 17:16:06,371 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-01-09 17:16:06,371 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:06,371 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:06,790 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 17:16:06,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:16:06,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154938458] [2025-01-09 17:16:06,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154938458] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:16:06,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [285147099] [2025-01-09 17:16:06,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:06,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:16:06,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:16:06,798 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 17:16:06,805 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 17:16:51,060 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-01-09 17:16:51,512 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-01-09 17:16:51,512 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:51,512 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:51,535 INFO L256 TraceCheckSpWp]: Trace formula consists of 3973 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 17:16:51,547 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:16:51,561 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 17:16:51,562 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:16:51,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [285147099] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:16:51,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:16:51,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 17:16:51,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749939603] [2025-01-09 17:16:51,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:16:51,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 17:16:51,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:16:51,579 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 17:16:51,580 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 17:16:51,582 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 17:16:51,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:16:51,609 INFO L93 Difference]: Finished difference Result 217 states and 299 transitions. [2025-01-09 17:16:51,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 17:16:51,611 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 17:16:51,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:16:51,620 INFO L225 Difference]: With dead ends: 217 [2025-01-09 17:16:51,624 INFO L226 Difference]: Without dead ends: 104 [2025-01-09 17:16:51,627 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 17:16:51,633 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 17:16:51,635 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 17:16:51,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2025-01-09 17:16:51,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2025-01-09 17:16:51,667 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 17:16:51,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 132 transitions. [2025-01-09 17:16:51,679 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 132 transitions. Word has length 93 [2025-01-09 17:16:51,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:16:51,680 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 132 transitions. [2025-01-09 17:16:51,680 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 17:16:51,680 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 132 transitions. [2025-01-09 17:16:51,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-01-09 17:16:51,687 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:16:51,687 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 17:16:51,714 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 [2025-01-09 17:16:51,888 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 17:16:51,888 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:16:51,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:16:51,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1648273971, now seen corresponding path program 1 times [2025-01-09 17:16:51,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:16:51,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635532355] [2025-01-09 17:16:51,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:51,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms