./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 c00e63dc 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-?-c00e63d-m [2025-02-06 05:10:13,100 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 05:10:13,173 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-06 05:10:13,180 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 05:10:13,181 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 05:10:13,209 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 05:10:13,210 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 05:10:13,211 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 05:10:13,211 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 05:10:13,211 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 05:10:13,212 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 05:10:13,212 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 05:10:13,212 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 05:10:13,212 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 05:10:13,213 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 05:10:13,213 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 05:10:13,213 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 05:10:13,213 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 05:10:13,214 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 05:10:13,214 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 05:10:13,214 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 05:10:13,214 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 05:10:13,214 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 05:10:13,214 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 05:10:13,214 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 05:10:13,214 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 05:10:13,214 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 05:10:13,214 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 05:10:13,215 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 05:10:13,215 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:10:13,215 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 05:10:13,215 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 05:10:13,216 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 05:10:13,216 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 05:10:13,216 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 05:10:13,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 05:10:13,216 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 05:10:13,216 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 05:10:13,216 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 05:10:13,216 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 05:10:13,216 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 [2025-02-06 05:10:13,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 05:10:13,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 05:10:13,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 05:10:13,502 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 05:10:13,502 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 05:10:13,504 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness_negated.i [2025-02-06 05:10:14,777 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9fdd3883b/deb3d92db7fd439385e17d2c8d4e31d3/FLAGd748d04ad [2025-02-06 05:10:15,298 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 05:10:15,298 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness_negated.i [2025-02-06 05:10:15,343 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9fdd3883b/deb3d92db7fd439385e17d2c8d4e31d3/FLAGd748d04ad [2025-02-06 05:10:15,355 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9fdd3883b/deb3d92db7fd439385e17d2c8d4e31d3 [2025-02-06 05:10:15,357 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 05:10:15,358 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 05:10:15,359 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 05:10:15,359 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 05:10:15,364 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 05:10:15,364 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:10:15" (1/1) ... [2025-02-06 05:10:15,365 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c2ddbba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:15, skipping insertion in model container [2025-02-06 05:10:15,365 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:10:15" (1/1) ... [2025-02-06 05:10:15,481 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 05:10:15,743 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] [2025-02-06 05:10:15,752 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] [2025-02-06 05:10:16,551 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:16,552 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:16,552 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:16,553 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:16,553 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:16,573 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:16,574 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:16,575 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:16,576 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:17,255 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:17,255 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:17,622 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:17,623 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:17,643 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:17,644 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:17,650 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:17,650 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:17,663 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:17,664 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:17,664 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:17,664 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:17,665 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:17,665 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:17,665 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:17,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:10:17,753 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 05:10:17,768 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] [2025-02-06 05:10:17,769 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] [2025-02-06 05:10:17,815 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:17,816 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:17,816 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:17,816 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:17,816 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:17,822 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:17,823 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:17,824 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:17,824 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:17,925 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8223] [2025-02-06 05:10:17,926 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:17,927 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:18,052 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:18,053 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:18,060 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:18,060 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:18,062 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:18,062 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:18,070 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:18,071 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:18,071 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:18,071 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:18,072 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:18,072 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:18,072 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:18,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:10:18,291 INFO L204 MainTranslator]: Completed translation [2025-02-06 05:10:18,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:18 WrapperNode [2025-02-06 05:10:18,293 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 05:10:18,294 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 05:10:18,295 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 05:10:18,295 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 05:10:18,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:18" (1/1) ... [2025-02-06 05:10:18,394 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:18" (1/1) ... [2025-02-06 05:10:18,455 INFO L138 Inliner]: procedures = 757, calls = 3256, calls flagged for inlining = 77, calls inlined = 7, statements flattened = 402 [2025-02-06 05:10:18,457 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 05:10:18,457 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 05:10:18,458 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 05:10:18,459 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 05:10:18,468 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:18" (1/1) ... [2025-02-06 05:10:18,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:18" (1/1) ... [2025-02-06 05:10:18,474 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:18" (1/1) ... [2025-02-06 05:10:18,506 INFO L175 MemorySlicer]: Split 277 memory accesses to 4 slices as follows [2, 13, 257, 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, 3, 257, 0]. [2025-02-06 05:10:18,506 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:18" (1/1) ... [2025-02-06 05:10:18,506 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:18" (1/1) ... [2025-02-06 05:10:18,540 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:18" (1/1) ... [2025-02-06 05:10:18,542 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:18" (1/1) ... [2025-02-06 05:10:18,547 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:18" (1/1) ... [2025-02-06 05:10:18,549 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:18" (1/1) ... [2025-02-06 05:10:18,562 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 05:10:18,565 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 05:10:18,565 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 05:10:18,565 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 05:10:18,567 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:18" (1/1) ... [2025-02-06 05:10:18,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:10:18,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:10:18,597 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) [2025-02-06 05:10:18,600 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 [2025-02-06 05:10:18,617 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2025-02-06 05:10:18,617 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2025-02-06 05:10:18,618 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2025-02-06 05:10:18,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2025-02-06 05:10:18,618 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-06 05:10:18,618 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-06 05:10:18,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 05:10:18,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 05:10:18,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 05:10:18,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 05:10:18,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 05:10:18,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 05:10:18,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 05:10:18,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 05:10:18,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 05:10:18,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 05:10:18,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 05:10:18,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 05:10:18,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 05:10:18,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 05:10:18,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 05:10:18,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 05:10:18,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 05:10:18,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 05:10:18,620 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-06 05:10:18,620 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-06 05:10:18,620 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 05:10:18,620 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 05:10:18,620 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2025-02-06 05:10:18,620 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2025-02-06 05:10:18,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 05:10:18,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 05:10:18,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 05:10:18,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 05:10:18,620 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-06 05:10:18,621 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-06 05:10:18,621 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-02-06 05:10:18,621 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-02-06 05:10:18,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 05:10:18,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 05:10:18,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 05:10:18,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 05:10:18,621 INFO L130 BoogieDeclarations]: Found specification of procedure aws_c_string_is_valid [2025-02-06 05:10:18,621 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_c_string_is_valid [2025-02-06 05:10:18,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 05:10:18,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 05:10:18,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 05:10:18,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 05:10:18,938 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 05:10:18,940 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 05:10:18,984 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6887: havoc #t~malloc562.base, #t~malloc562.offset; [2025-02-06 05:10:18,999 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-06 05:10:19,030 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6245: havoc #t~mem472;havoc #t~short473;havoc #t~mem474;havoc #t~mem475;havoc #t~short476; [2025-02-06 05:10:19,032 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-02-06 05:10:19,067 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6804: havoc #t~ret548#1.base, #t~ret548#1.offset; [2025-02-06 05:10:19,092 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7673: havoc #t~nondet820; [2025-02-06 05:10:25,293 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L11040: havoc aws_string_eq_#t~mem2108#1;havoc aws_string_eq_#t~mem2109#1;havoc aws_string_eq_#t~ret2110#1; [2025-02-06 05:10:25,293 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L10776-1: assume false; [2025-02-06 05:10:25,293 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L10776-1: assume !false; [2025-02-06 05:10:25,379 INFO L? ?]: Removed 82 outVars from TransFormulas that were not future-live. [2025-02-06 05:10:25,380 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 05:10:25,393 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 05:10:25,393 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 05:10:25,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:10:25 BoogieIcfgContainer [2025-02-06 05:10:25,394 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 05:10:25,396 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 05:10:25,396 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 05:10:25,403 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 05:10:25,404 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 05:10:15" (1/3) ... [2025-02-06 05:10:25,404 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dd9b446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:10:25, skipping insertion in model container [2025-02-06 05:10:25,405 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:18" (2/3) ... [2025-02-06 05:10:25,406 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dd9b446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:10:25, skipping insertion in model container [2025-02-06 05:10:25,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:10:25" (3/3) ... [2025-02-06 05:10:25,407 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_callback_string_eq_harness_negated.i [2025-02-06 05:10:25,421 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 05:10:25,423 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_callback_string_eq_harness_negated.i that has 11 procedures, 111 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-06 05:10:25,467 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 05:10:25,476 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;@10e02a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 05:10:25,476 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 05:10:25,480 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 71 states have (on average 1.2394366197183098) internal successors, (88), 72 states have internal predecessors, (88), 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) [2025-02-06 05:10:25,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-02-06 05:10:25,488 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:10:25,489 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] [2025-02-06 05:10:25,489 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:10:25,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:10:25,493 INFO L85 PathProgramCache]: Analyzing trace with hash -651096256, now seen corresponding path program 1 times [2025-02-06 05:10:25,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:10:25,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009980744] [2025-02-06 05:10:25,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:10:25,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:11:07,710 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-02-06 05:11:08,295 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-02-06 05:11:08,295 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:11:08,296 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:11:08,961 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-02-06 05:11:08,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:11:08,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009980744] [2025-02-06 05:11:08,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009980744] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:11:08,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211682850] [2025-02-06 05:11:08,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:11:08,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:11:08,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:11:08,967 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) [2025-02-06 05:11:08,969 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 [2025-02-06 05:11:53,260 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-02-06 05:11:53,850 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-02-06 05:11:53,850 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:11:53,850 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:11:53,884 INFO L256 TraceCheckSpWp]: Trace formula consists of 3967 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 05:11:53,899 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:11:53,913 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-02-06 05:11:53,914 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:11:53,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211682850] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:11:53,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:11:53,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 05:11:53,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787678419] [2025-02-06 05:11:53,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:11:53,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 05:11:53,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:11:53,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 05:11:53,943 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 05:11:53,945 INFO L87 Difference]: Start difference. First operand has 111 states, 71 states have (on average 1.2394366197183098) internal successors, (88), 72 states have internal predecessors, (88), 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) [2025-02-06 05:11:53,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:11:53,970 INFO L93 Difference]: Finished difference Result 219 states and 301 transitions. [2025-02-06 05:11:53,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 05:11:53,972 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 [2025-02-06 05:11:53,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:11:53,978 INFO L225 Difference]: With dead ends: 219 [2025-02-06 05:11:53,978 INFO L226 Difference]: Without dead ends: 105 [2025-02-06 05:11:53,981 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 [2025-02-06 05:11:53,983 INFO L435 NwaCegarLoop]: 141 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, 141 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 [2025-02-06 05:11:53,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 05:11:53,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2025-02-06 05:11:54,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2025-02-06 05:11:54,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 66 states have (on average 1.1818181818181819) internal successors, (78), 67 states have internal predecessors, (78), 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) [2025-02-06 05:11:54,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 133 transitions. [2025-02-06 05:11:54,022 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 133 transitions. Word has length 93 [2025-02-06 05:11:54,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:11:54,023 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 133 transitions. [2025-02-06 05:11:54,024 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) [2025-02-06 05:11:54,024 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 133 transitions. [2025-02-06 05:11:54,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-02-06 05:11:54,027 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:11:54,027 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, 1] [2025-02-06 05:11:54,043 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 05:11:54,232 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 [2025-02-06 05:11:54,232 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:11:54,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:11:54,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1653810270, now seen corresponding path program 1 times [2025-02-06 05:11:54,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:11:54,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663976423] [2025-02-06 05:11:54,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:11:54,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms