./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 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/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/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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-?-798a7b3-m [2025-03-04 02:52:24,595 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 02:52:24,636 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 02:52:24,640 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 02:52:24,643 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 02:52:24,661 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 02:52:24,663 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 02:52:24,663 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 02:52:24,663 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 02:52:24,663 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 02:52:24,664 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 02:52:24,664 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 02:52:24,664 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 02:52:24,664 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 02:52:24,664 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 02:52:24,664 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 02:52:24,665 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 02:52:24,665 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 02:52:24,665 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 02:52:24,665 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 02:52:24,665 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 02:52:24,665 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 02:52:24,665 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 02:52:24,665 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 02:52:24,665 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 02:52:24,666 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 02:52:24,666 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 02:52:24,666 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 02:52:24,666 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 02:52:24,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:52:24,666 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 02:52:24,666 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 02:52:24,667 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 02:52:24,667 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 02:52:24,667 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 02:52:24,667 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 02:52:24,667 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 02:52:24,667 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 02:52:24,667 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 02:52:24,667 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 02:52:24,667 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/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 [2025-03-04 02:52:24,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 02:52:24,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 02:52:24,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 02:52:24,902 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 02:52:24,902 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 02:52:24,903 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness_negated.i [2025-03-04 02:52:25,997 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ced81291f/51f08b2b7df54385a4c8fa0dacd4e925/FLAGd4c022fd4 [2025-03-04 02:52:26,525 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 02:52:26,527 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness_negated.i [2025-03-04 02:52:26,560 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ced81291f/51f08b2b7df54385a4c8fa0dacd4e925/FLAGd4c022fd4 [2025-03-04 02:52:27,066 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ced81291f/51f08b2b7df54385a4c8fa0dacd4e925 [2025-03-04 02:52:27,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 02:52:27,068 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 02:52:27,069 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 02:52:27,069 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 02:52:27,072 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 02:52:27,072 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:52:27" (1/1) ... [2025-03-04 02:52:27,073 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27491271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:27, skipping insertion in model container [2025-03-04 02:52:27,073 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:52:27" (1/1) ... [2025-03-04 02:52:27,145 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 02:52:27,356 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness_negated.i[4501,4514] [2025-03-04 02:52:27,368 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness_negated.i[4561,4574] [2025-03-04 02:52:27,988 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:27,989 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:27,989 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:27,990 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:27,990 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:27,998 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,000 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,001 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,001 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,513 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,513 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,689 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,690 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,705 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,705 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,709 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,710 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,719 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,720 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,720 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,721 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,721 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,721 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,721 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:52:28,780 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 02:52:28,788 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness_negated.i[4501,4514] [2025-03-04 02:52:28,788 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness_negated.i[4561,4574] [2025-03-04 02:52:28,815 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,816 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,817 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,817 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,817 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,823 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,823 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,824 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,824 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,929 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8223] [2025-03-04 02:52:28,930 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,930 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,969 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,969 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,977 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,977 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,978 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,978 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,984 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,985 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,985 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,985 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,985 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,986 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:28,986 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:29,005 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:52:29,171 INFO L204 MainTranslator]: Completed translation [2025-03-04 02:52:29,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:29 WrapperNode [2025-03-04 02:52:29,171 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 02:52:29,172 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 02:52:29,172 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 02:52:29,172 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 02:52:29,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:29" (1/1) ... [2025-03-04 02:52:29,240 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:29" (1/1) ... [2025-03-04 02:52:29,282 INFO L138 Inliner]: procedures = 757, calls = 3256, calls flagged for inlining = 77, calls inlined = 7, statements flattened = 402 [2025-03-04 02:52:29,282 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 02:52:29,282 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 02:52:29,282 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 02:52:29,283 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 02:52:29,294 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:29" (1/1) ... [2025-03-04 02:52:29,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:29" (1/1) ... [2025-03-04 02:52:29,298 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:29" (1/1) ... [2025-03-04 02:52:29,321 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]. [2025-03-04 02:52:29,322 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:29" (1/1) ... [2025-03-04 02:52:29,322 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:29" (1/1) ... [2025-03-04 02:52:29,347 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:29" (1/1) ... [2025-03-04 02:52:29,348 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:29" (1/1) ... [2025-03-04 02:52:29,358 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:29" (1/1) ... [2025-03-04 02:52:29,364 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:29" (1/1) ... [2025-03-04 02:52:29,370 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 02:52:29,372 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 02:52:29,372 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 02:52:29,372 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 02:52:29,373 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:29" (1/1) ... [2025-03-04 02:52:29,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:52:29,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:52:29,397 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 02:52:29,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 02:52:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2025-03-04 02:52:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2025-03-04 02:52:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2025-03-04 02:52:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2025-03-04 02:52:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-04 02:52:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-04 02:52:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 02:52:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 02:52:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 02:52:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 02:52:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 02:52:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 02:52:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 02:52:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 02:52:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 02:52:29,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 02:52:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 02:52:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 02:52:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 02:52:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 02:52:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 02:52:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 02:52:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 02:52:29,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 02:52:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 02:52:29,421 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 02:52:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 02:52:29,421 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 02:52:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2025-03-04 02:52:29,421 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2025-03-04 02:52:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 02:52:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 02:52:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 02:52:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 02:52:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-04 02:52:29,421 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-04 02:52:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-04 02:52:29,421 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-04 02:52:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 02:52:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 02:52:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 02:52:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 02:52:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure aws_c_string_is_valid [2025-03-04 02:52:29,421 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_c_string_is_valid [2025-03-04 02:52:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 02:52:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 02:52:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 02:52:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 02:52:29,655 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 02:52:29,657 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 02:52:29,701 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6887: havoc #t~malloc562.base, #t~malloc562.offset; [2025-03-04 02:52:29,709 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-04 02:52:29,728 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6245: havoc #t~mem472;havoc #t~short473;havoc #t~mem474;havoc #t~mem475;havoc #t~short476; [2025-03-04 02:52:29,732 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-04 02:52:29,786 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6804: havoc #t~ret548#1.base, #t~ret548#1.offset; [2025-03-04 02:52:29,815 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7673: havoc #t~nondet820; [2025-03-04 02:52:35,568 INFO L1325 $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; [2025-03-04 02:52:35,568 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L10776-1: assume false; [2025-03-04 02:52:35,568 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L10776-1: assume !false; [2025-03-04 02:52:35,636 INFO L? ?]: Removed 82 outVars from TransFormulas that were not future-live. [2025-03-04 02:52:35,636 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 02:52:35,643 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 02:52:35,643 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 02:52:35,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:52:35 BoogieIcfgContainer [2025-03-04 02:52:35,644 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 02:52:35,646 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 02:52:35,646 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 02:52:35,649 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 02:52:35,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:52:27" (1/3) ... [2025-03-04 02:52:35,649 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47f2e185 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:52:35, skipping insertion in model container [2025-03-04 02:52:35,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:29" (2/3) ... [2025-03-04 02:52:35,650 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47f2e185 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:52:35, skipping insertion in model container [2025-03-04 02:52:35,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:52:35" (3/3) ... [2025-03-04 02:52:35,651 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_callback_string_eq_harness_negated.i [2025-03-04 02:52:35,660 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 02:52:35,661 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. [2025-03-04 02:52:35,703 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 02:52:35,710 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;@172e1c63, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 02:52:35,711 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 02:52:35,713 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) [2025-03-04 02:52:35,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-03-04 02:52:35,720 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:52:35,720 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] [2025-03-04 02:52:35,721 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:52:35,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:52:35,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1759394752, now seen corresponding path program 1 times [2025-03-04 02:52:35,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:52:35,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415539445] [2025-03-04 02:52:35,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:52:35,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:53:19,317 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-03-04 02:53:19,698 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-03-04 02:53:19,699 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:53:19,699 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:53:20,174 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-04 02:53:20,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:53:20,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415539445] [2025-03-04 02:53:20,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415539445] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:53:20,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758644273] [2025-03-04 02:53:20,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:53:20,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:53:20,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:53:20,179 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 02:53:20,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 02:54:03,477 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-03-04 02:54:03,910 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-03-04 02:54:03,910 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:54:03,910 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:54:03,932 INFO L256 TraceCheckSpWp]: Trace formula consists of 3967 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-04 02:54:03,940 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:54:03,950 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-04 02:54:03,950 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:54:03,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758644273] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:54:03,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:54:03,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-04 02:54:03,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011094397] [2025-03-04 02:54:03,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:54:03,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 02:54:03,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:54:03,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 02:54:03,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 02:54:03,971 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) [2025-03-04 02:54:03,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:54:03,993 INFO L93 Difference]: Finished difference Result 217 states and 299 transitions. [2025-03-04 02:54:03,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 02:54:03,994 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 [2025-03-04 02:54:03,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:54:04,001 INFO L225 Difference]: With dead ends: 217 [2025-03-04 02:54:04,001 INFO L226 Difference]: Without dead ends: 104 [2025-03-04 02:54:04,003 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 [2025-03-04 02:54:04,005 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 [2025-03-04 02:54:04,006 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] [2025-03-04 02:54:04,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2025-03-04 02:54:04,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2025-03-04 02:54:04,026 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) [2025-03-04 02:54:04,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 132 transitions. [2025-03-04 02:54:04,031 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 132 transitions. Word has length 93 [2025-03-04 02:54:04,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:54:04,032 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 132 transitions. [2025-03-04 02:54:04,032 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) [2025-03-04 02:54:04,035 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 132 transitions. [2025-03-04 02:54:04,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-03-04 02:54:04,038 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:54:04,039 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] [2025-03-04 02:54:04,054 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 02:54:04,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-04 02:54:04,240 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:54:04,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:54:04,240 INFO L85 PathProgramCache]: Analyzing trace with hash -159557862, now seen corresponding path program 1 times [2025-03-04 02:54:04,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:54:04,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187293667] [2025-03-04 02:54:04,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:54:04,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms