./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 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_string_eq_byte_buf_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 c974750d72dbbdcad43b6c780cc7a00626a484b6d2da67e96b9032eaa6e0f23d --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 03:06:36,777 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 03:06:36,834 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 03:06:36,841 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 03:06:36,841 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 03:06:36,860 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 03:06:36,861 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 03:06:36,861 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 03:06:36,861 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 03:06:36,861 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 03:06:36,861 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 03:06:36,862 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 03:06:36,862 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 03:06:36,862 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 03:06:36,863 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 03:06:36,863 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 03:06:36,863 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 03:06:36,863 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 03:06:36,863 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 03:06:36,863 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 03:06:36,863 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 03:06:36,863 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 03:06:36,863 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 03:06:36,863 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 03:06:36,863 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 03:06:36,864 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 03:06:36,864 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 03:06:36,864 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 03:06:36,864 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 03:06:36,864 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 03:06:36,864 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 03:06:36,864 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 03:06:36,864 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 03:06:36,864 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 03:06:36,864 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 03:06:36,864 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 03:06:36,864 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 03:06:36,864 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 03:06:36,864 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 03:06:36,864 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 03:06:36,864 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 -> c974750d72dbbdcad43b6c780cc7a00626a484b6d2da67e96b9032eaa6e0f23d [2025-03-04 03:06:37,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 03:06:37,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 03:06:37,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 03:06:37,092 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 03:06:37,093 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 03:06:37,094 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness_negated.i [2025-03-04 03:06:38,222 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/786544ce7/879847079a4545fda4035eb7e1122f47/FLAG8586a786e [2025-03-04 03:06:38,612 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 03:06:38,614 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness_negated.i [2025-03-04 03:06:38,644 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/786544ce7/879847079a4545fda4035eb7e1122f47/FLAG8586a786e [2025-03-04 03:06:38,654 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/786544ce7/879847079a4545fda4035eb7e1122f47 [2025-03-04 03:06:38,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 03:06:38,658 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 03:06:38,659 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 03:06:38,659 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 03:06:38,661 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 03:06:38,662 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:06:38" (1/1) ... [2025-03-04 03:06:38,662 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dadde3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:38, skipping insertion in model container [2025-03-04 03:06:38,662 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:06:38" (1/1) ... [2025-03-04 03:06:38,718 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 03:06:38,934 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_string_eq_byte_buf_harness_negated.i[4496,4509] [2025-03-04 03:06:38,942 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_string_eq_byte_buf_harness_negated.i[4556,4569] [2025-03-04 03:06:39,444 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:39,444 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:39,445 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:39,445 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:39,446 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:39,455 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:39,455 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:39,457 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:39,457 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:39,856 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:39,856 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:39,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 03:06:39,991 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 03:06:40,002 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_string_eq_byte_buf_harness_negated.i[4496,4509] [2025-03-04 03:06:40,006 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_string_eq_byte_buf_harness_negated.i[4556,4569] [2025-03-04 03:06:40,043 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:40,045 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:40,045 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:40,046 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:40,046 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:40,050 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:40,051 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:40,051 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:40,053 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:40,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8221] [2025-03-04 03:06:40,131 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:40,131 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:06:40,140 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8707-8718] [2025-03-04 03:06:40,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 03:06:40,343 INFO L204 MainTranslator]: Completed translation [2025-03-04 03:06:40,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:40 WrapperNode [2025-03-04 03:06:40,344 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 03:06:40,345 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 03:06:40,345 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 03:06:40,345 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 03:06:40,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:40" (1/1) ... [2025-03-04 03:06:40,403 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:40" (1/1) ... [2025-03-04 03:06:40,457 INFO L138 Inliner]: procedures = 682, calls = 2798, calls flagged for inlining = 61, calls inlined = 8, statements flattened = 891 [2025-03-04 03:06:40,458 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 03:06:40,458 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 03:06:40,458 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 03:06:40,459 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 03:06:40,469 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:40" (1/1) ... [2025-03-04 03:06:40,469 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:40" (1/1) ... [2025-03-04 03:06:40,473 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:40" (1/1) ... [2025-03-04 03:06:40,527 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]. [2025-03-04 03:06:40,527 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:40" (1/1) ... [2025-03-04 03:06:40,527 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:40" (1/1) ... [2025-03-04 03:06:40,556 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:40" (1/1) ... [2025-03-04 03:06:40,560 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:40" (1/1) ... [2025-03-04 03:06:40,564 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:40" (1/1) ... [2025-03-04 03:06:40,566 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:40" (1/1) ... [2025-03-04 03:06:40,572 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 03:06:40,573 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 03:06:40,573 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 03:06:40,573 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 03:06:40,577 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:40" (1/1) ... [2025-03-04 03:06:40,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 03:06:40,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:06:40,601 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 03:06:40,603 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 03:06:40,619 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2025-03-04 03:06:40,620 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2025-03-04 03:06:40,620 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-04 03:06:40,620 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-04 03:06:40,620 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2025-03-04 03:06:40,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2025-03-04 03:06:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 03:06:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-04 03:06:40,621 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-04 03:06:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 03:06:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 03:06:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 03:06:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 03:06:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 03:06:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-04 03:06:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 03:06:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 03:06:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 03:06:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 03:06:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 03:06:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-04 03:06:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 03:06:40,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 03:06:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 03:06:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 03:06:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 03:06:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 03:06:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 03:06:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 03:06:40,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 03:06:40,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-04 03:06:40,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 03:06:40,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 03:06:40,623 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 03:06:40,623 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 03:06:40,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 03:06:40,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 03:06:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 03:06:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 03:06:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 03:06:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-04 03:06:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 03:06:40,624 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 03:06:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 03:06:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 03:06:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 03:06:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 03:06:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 03:06:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 03:06:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-04 03:06:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2025-03-04 03:06:40,624 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2025-03-04 03:06:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 03:06:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 03:06:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 03:06:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 03:06:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 03:06:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-04 03:06:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-04 03:06:40,624 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-04 03:06:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-04 03:06:40,624 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-04 03:06:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 03:06:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 03:06:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 03:06:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 03:06:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 03:06:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-04 03:06:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 03:06:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 03:06:40,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 03:06:40,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 03:06:40,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 03:06:40,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-04 03:06:40,857 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 03:06:40,862 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 03:06:40,893 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-04 03:06:40,918 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6244: havoc #t~mem472;havoc #t~short473;havoc #t~mem474;havoc #t~mem475;havoc #t~short476; [2025-03-04 03:06:40,920 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-04 03:06:40,939 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7671: havoc #t~nondet817; [2025-03-04 03:06:40,981 INFO L1325 $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; [2025-03-04 03:06:40,991 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-04 03:06:41,020 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791: havoc #t~ret543#1.base, #t~ret543#1.offset; [2025-03-04 03:06:47,944 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6588: havoc aws_byte_buf_is_bounded_#t~mem477#1; [2025-03-04 03:06:47,945 INFO L1325 $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; [2025-03-04 03:06:47,977 INFO L? ?]: Removed 108 outVars from TransFormulas that were not future-live. [2025-03-04 03:06:47,977 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 03:06:47,991 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 03:06:47,991 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 03:06:47,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:06:47 BoogieIcfgContainer [2025-03-04 03:06:47,991 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 03:06:47,995 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 03:06:47,995 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 03:06:47,998 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 03:06:47,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 03:06:38" (1/3) ... [2025-03-04 03:06:47,999 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14cec993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:06:47, skipping insertion in model container [2025-03-04 03:06:47,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:06:40" (2/3) ... [2025-03-04 03:06:47,999 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14cec993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:06:47, skipping insertion in model container [2025-03-04 03:06:48,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:06:47" (3/3) ... [2025-03-04 03:06:48,001 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_string_eq_byte_buf_harness_negated.i [2025-03-04 03:06:48,010 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 03:06:48,013 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. [2025-03-04 03:06:48,055 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 03:06:48,064 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;@196afb0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 03:06:48,064 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 03:06:48,068 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) [2025-03-04 03:06:48,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-03-04 03:06:48,076 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:06:48,077 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] [2025-03-04 03:06:48,077 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 03:06:48,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:06:48,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1372606289, now seen corresponding path program 1 times [2025-03-04 03:06:48,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:06:48,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033805099] [2025-03-04 03:06:48,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:06:48,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 03:07:55,295 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-04 03:07:55,829 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-04 03:07:55,830 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:07:55,830 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:07:56,554 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-03-04 03:07:56,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 03:07:56,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033805099] [2025-03-04 03:07:56,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033805099] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 03:07:56,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533115553] [2025-03-04 03:07:56,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:07:56,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 03:07:56,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:07:56,560 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 03:07:56,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process