./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_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_string_eq_byte_buf_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 c974750d72dbbdcad43b6c780cc7a00626a484b6d2da67e96b9032eaa6e0f23d --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 05:25:31,836 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 05:25:31,879 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-06 05:25:31,883 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 05:25:31,883 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 05:25:31,903 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 05:25:31,904 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 05:25:31,904 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 05:25:31,905 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 05:25:31,905 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 05:25:31,905 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 05:25:31,906 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 05:25:31,906 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 05:25:31,906 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 05:25:31,906 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 05:25:31,906 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 05:25:31,906 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 05:25:31,907 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 05:25:31,907 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 05:25:31,907 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 05:25:31,907 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 05:25:31,907 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 05:25:31,907 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 05:25:31,907 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 05:25:31,907 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 05:25:31,907 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 05:25:31,907 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 05:25:31,907 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 05:25:31,908 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 05:25:31,908 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:25:31,908 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 05:25:31,908 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 05:25:31,908 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 05:25:31,908 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 05:25:31,909 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 05:25:31,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 05:25:31,909 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 05:25:31,909 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 05:25:31,909 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 05:25:31,909 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 05:25:31,909 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 -> c974750d72dbbdcad43b6c780cc7a00626a484b6d2da67e96b9032eaa6e0f23d [2025-02-06 05:25:32,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 05:25:32,161 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 05:25:32,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 05:25:32,165 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 05:25:32,165 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 05:25:32,166 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness_negated.i [2025-02-06 05:25:33,299 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9b5076c3e/6c4cefb3113a4f2bbd338b6201ee3657/FLAGcc68a5454 [2025-02-06 05:25:33,659 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 05:25:33,660 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness_negated.i [2025-02-06 05:25:33,692 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9b5076c3e/6c4cefb3113a4f2bbd338b6201ee3657/FLAGcc68a5454 [2025-02-06 05:25:33,853 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9b5076c3e/6c4cefb3113a4f2bbd338b6201ee3657 [2025-02-06 05:25:33,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 05:25:33,857 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 05:25:33,858 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 05:25:33,859 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 05:25:33,861 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 05:25:33,862 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:25:33" (1/1) ... [2025-02-06 05:25:33,864 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1998c957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:25:33, skipping insertion in model container [2025-02-06 05:25:33,864 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:25:33" (1/1) ... [2025-02-06 05:25:33,936 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 05:25:34,117 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_string_eq_byte_buf_harness_negated.i[4496,4509] [2025-02-06 05:25:34,125 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_string_eq_byte_buf_harness_negated.i[4556,4569] [2025-02-06 05:25:34,575 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:25:34,576 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:25:34,576 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:25:34,576 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:25:34,577 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:25:34,585 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:25:34,588 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:25:34,590 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:25:34,590 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:25:35,009 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:25:35,009 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:25:35,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:25:35,114 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 05:25:35,124 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_string_eq_byte_buf_harness_negated.i[4496,4509] [2025-02-06 05:25:35,127 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_string_eq_byte_buf_harness_negated.i[4556,4569] [2025-02-06 05:25:35,186 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:25:35,187 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:25:35,187 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:25:35,188 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:25:35,188 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:25:35,193 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:25:35,193 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:25:35,194 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:25:35,195 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:25:35,276 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8221] [2025-02-06 05:25:35,277 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:25:35,277 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:25:35,287 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8707-8718] [2025-02-06 05:25:35,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:25:35,469 INFO L204 MainTranslator]: Completed translation [2025-02-06 05:25:35,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:25:35 WrapperNode [2025-02-06 05:25:35,470 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 05:25:35,471 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 05:25:35,471 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 05:25:35,472 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 05:25:35,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:25:35" (1/1) ... [2025-02-06 05:25:35,531 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:25:35" (1/1) ... [2025-02-06 05:25:35,588 INFO L138 Inliner]: procedures = 682, calls = 2798, calls flagged for inlining = 61, calls inlined = 8, statements flattened = 891 [2025-02-06 05:25:35,589 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 05:25:35,589 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 05:25:35,590 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 05:25:35,590 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 05:25:35,596 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:25:35" (1/1) ... [2025-02-06 05:25:35,596 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:25:35" (1/1) ... [2025-02-06 05:25:35,602 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:25:35" (1/1) ... [2025-02-06 05:25:35,659 INFO L175 MemorySlicer]: Split 549 memory accesses to 6 slices as follows [2, 257, 238, 16, 16, 20]. 47 percent of accesses are in the largest equivalence class. The 33 initializations are split as follows [2, 0, 6, 5, 16, 4]. The 494 writes are split as follows [0, 257, 232, 3, 0, 2]. [2025-02-06 05:25:35,660 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:25:35" (1/1) ... [2025-02-06 05:25:35,660 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:25:35" (1/1) ... [2025-02-06 05:25:35,679 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:25:35" (1/1) ... [2025-02-06 05:25:35,685 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:25:35" (1/1) ... [2025-02-06 05:25:35,713 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:25:35" (1/1) ... [2025-02-06 05:25:35,718 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:25:35" (1/1) ... [2025-02-06 05:25:35,724 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 05:25:35,727 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 05:25:35,727 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 05:25:35,727 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 05:25:35,728 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:25:35" (1/1) ... [2025-02-06 05:25:35,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:25:35,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:25:35,753 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 05:25:35,754 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 05:25:35,771 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2025-02-06 05:25:35,771 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2025-02-06 05:25:35,772 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-02-06 05:25:35,772 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-02-06 05:25:35,772 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2025-02-06 05:25:35,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2025-02-06 05:25:35,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 05:25:35,772 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-06 05:25:35,773 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-06 05:25:35,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 05:25:35,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 05:25:35,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 05:25:35,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 05:25:35,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-06 05:25:35,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-06 05:25:35,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 05:25:35,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 05:25:35,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 05:25:35,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 05:25:35,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 05:25:35,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-06 05:25:35,773 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 05:25:35,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 05:25:35,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 05:25:35,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 05:25:35,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 05:25:35,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 05:25:35,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 05:25:35,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 05:25:35,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 05:25:35,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-06 05:25:35,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 05:25:35,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 05:25:35,775 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-06 05:25:35,775 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-06 05:25:35,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-06 05:25:35,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-06 05:25:35,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-06 05:25:35,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-06 05:25:35,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-06 05:25:35,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-06 05:25:35,775 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 05:25:35,775 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 05:25:35,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 05:25:35,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 05:25:35,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 05:25:35,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 05:25:35,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 05:25:35,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-06 05:25:35,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-06 05:25:35,775 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2025-02-06 05:25:35,775 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2025-02-06 05:25:35,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 05:25:35,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 05:25:35,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 05:25:35,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 05:25:35,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-06 05:25:35,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-06 05:25:35,775 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-06 05:25:35,775 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-06 05:25:35,775 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-02-06 05:25:35,775 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-02-06 05:25:35,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 05:25:35,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 05:25:35,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 05:25:35,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 05:25:35,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 05:25:35,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-06 05:25:35,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 05:25:35,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 05:25:35,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 05:25:35,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 05:25:35,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 05:25:35,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-06 05:25:35,988 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 05:25:35,989 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 05:25:36,015 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2025-02-06 05:25:36,035 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6244: havoc #t~mem472;havoc #t~short473;havoc #t~mem474;havoc #t~mem475;havoc #t~short476; [2025-02-06 05:25:36,036 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-02-06 05:25:36,055 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7671: havoc #t~nondet817; [2025-02-06 05:25:36,096 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7329: havoc #t~mem678;havoc #t~mem679;havoc #t~short680;havoc #t~mem681.base, #t~mem681.offset;havoc #t~short682;havoc #t~mem683;havoc #t~mem684;havoc #t~mem685;havoc #t~short686;havoc #t~mem687;havoc #t~mem688.base, #t~mem688.offset;havoc #t~short689;havoc #t~short690;havoc #t~short691;havoc #t~short692; [2025-02-06 05:25:36,108 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-06 05:25:36,136 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791: havoc #t~ret543#1.base, #t~ret543#1.offset; [2025-02-06 05:25:42,962 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6588: havoc aws_byte_buf_is_bounded_#t~mem477#1; [2025-02-06 05:25:42,962 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L9374: havoc aws_string_eq_byte_buf_#t~mem1318#1;havoc aws_string_eq_byte_buf_#t~mem1319#1.base, aws_string_eq_byte_buf_#t~mem1319#1.offset;havoc aws_string_eq_byte_buf_#t~mem1320#1;havoc aws_string_eq_byte_buf_#t~ret1321#1; [2025-02-06 05:25:42,983 INFO L? ?]: Removed 108 outVars from TransFormulas that were not future-live. [2025-02-06 05:25:42,983 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 05:25:42,990 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 05:25:42,991 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 05:25:42,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:25:42 BoogieIcfgContainer [2025-02-06 05:25:42,991 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 05:25:42,993 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 05:25:42,993 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 05:25:42,995 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 05:25:42,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 05:25:33" (1/3) ... [2025-02-06 05:25:42,996 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17b63027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:25:42, skipping insertion in model container [2025-02-06 05:25:42,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:25:35" (2/3) ... [2025-02-06 05:25:42,996 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17b63027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:25:42, skipping insertion in model container [2025-02-06 05:25:42,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:25:42" (3/3) ... [2025-02-06 05:25:42,997 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_string_eq_byte_buf_harness_negated.i [2025-02-06 05:25:43,006 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 05:25:43,008 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_string_eq_byte_buf_harness_negated.i that has 11 procedures, 130 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-06 05:25:43,049 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 05:25:43,056 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;@60a2ac7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 05:25:43,056 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 05:25:43,061 INFO L276 IsEmpty]: Start isEmpty. Operand has 130 states, 87 states have (on average 1.264367816091954) internal successors, (110), 88 states have internal predecessors, (110), 31 states have call successors, (31), 10 states have call predecessors, (31), 10 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2025-02-06 05:25:43,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-02-06 05:25:43,068 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:25:43,068 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:25:43,069 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:25:43,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:25:43,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1372606289, now seen corresponding path program 1 times [2025-02-06 05:25:43,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:25:43,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522643736] [2025-02-06 05:25:43,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:25:43,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:26:50,021 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-02-06 05:26:50,497 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-02-06 05:26:50,497 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:26:50,497 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:26:51,145 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-02-06 05:26:51,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:26:51,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522643736] [2025-02-06 05:26:51,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522643736] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:26:51,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494863059] [2025-02-06 05:26:51,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:26:51,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:26:51,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:26:51,151 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 05:26:51,153 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