./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed 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_byte_buf_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 97f1929f60deed797b33f238413f59b0edc96867527757b3538e00bc90721005 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 17:50:42,873 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 17:50:42,919 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 17:50:42,926 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 17:50:42,929 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 17:50:42,948 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 17:50:42,949 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 17:50:42,949 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 17:50:42,950 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 17:50:42,950 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 17:50:42,951 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 17:50:42,951 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 17:50:42,951 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 17:50:42,951 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 17:50:42,951 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 17:50:42,951 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 17:50:42,951 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 17:50:42,951 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 17:50:42,951 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 17:50:42,951 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 17:50:42,951 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 17:50:42,951 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 17:50:42,951 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 17:50:42,951 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 17:50:42,952 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 17:50:42,952 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 17:50:42,952 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 17:50:42,952 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 17:50:42,952 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 17:50:42,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:50:42,952 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 17:50:42,952 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 17:50:42,952 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 17:50:42,952 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 17:50:42,952 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 17:50:42,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 17:50:42,952 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 17:50:42,952 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 17:50:42,952 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 17:50:42,952 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 17:50:42,952 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 -> 97f1929f60deed797b33f238413f59b0edc96867527757b3538e00bc90721005 [2025-03-08 17:50:43,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 17:50:43,166 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 17:50:43,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 17:50:43,168 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 17:50:43,168 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 17:50:43,170 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness_negated.i [2025-03-08 17:50:44,295 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9c5fd05f/845b7f6f5fc0446c91a552318deaac35/FLAG9e4be7d9a [2025-03-08 17:50:44,727 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 17:50:44,727 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness_negated.i [2025-03-08 17:50:44,765 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9c5fd05f/845b7f6f5fc0446c91a552318deaac35/FLAG9e4be7d9a [2025-03-08 17:50:44,781 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9c5fd05f/845b7f6f5fc0446c91a552318deaac35 [2025-03-08 17:50:44,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 17:50:44,783 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 17:50:44,784 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 17:50:44,784 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 17:50:44,787 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 17:50:44,788 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:50:44" (1/1) ... [2025-03-08 17:50:44,789 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5026bf27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:50:44, skipping insertion in model container [2025-03-08 17:50:44,789 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:50:44" (1/1) ... [2025-03-08 17:50:44,858 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 17:50:45,040 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_byte_buf_eq_harness_negated.i[4489,4502] [2025-03-08 17:50:45,047 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_byte_buf_eq_harness_negated.i[4549,4562] [2025-03-08 17:50:45,476 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:45,476 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:45,477 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:45,477 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:45,478 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:45,492 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:45,493 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:45,494 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:45,494 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:45,873 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:45,874 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:45,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:50:45,991 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 17:50:46,000 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_byte_buf_eq_harness_negated.i[4489,4502] [2025-03-08 17:50:46,000 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_byte_buf_eq_harness_negated.i[4549,4562] [2025-03-08 17:50:46,028 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:46,029 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:46,029 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:46,029 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:46,029 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:46,033 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:46,033 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:46,034 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:46,034 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:46,113 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8245] [2025-03-08 17:50:46,115 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:46,115 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:50:46,127 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8731-8742] [2025-03-08 17:50:46,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:50:46,319 INFO L204 MainTranslator]: Completed translation [2025-03-08 17:50:46,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:50:46 WrapperNode [2025-03-08 17:50:46,321 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 17:50:46,321 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 17:50:46,321 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 17:50:46,321 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 17:50:46,326 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:50:46" (1/1) ... [2025-03-08 17:50:46,381 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:50:46" (1/1) ... [2025-03-08 17:50:46,440 INFO L138 Inliner]: procedures = 680, calls = 2668, calls flagged for inlining = 60, calls inlined = 6, statements flattened = 902 [2025-03-08 17:50:46,441 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 17:50:46,442 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 17:50:46,442 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 17:50:46,442 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 17:50:46,448 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:50:46" (1/1) ... [2025-03-08 17:50:46,448 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:50:46" (1/1) ... [2025-03-08 17:50:46,453 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:50:46" (1/1) ... [2025-03-08 17:50:46,500 INFO L175 MemorySlicer]: Split 578 memory accesses to 6 slices as follows [2, 257, 238, 66, 9, 6]. 44 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [2, 0, 6, 16, 5, 0]. The 497 writes are split as follows [0, 257, 232, 6, 0, 2]. [2025-03-08 17:50:46,500 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:50:46" (1/1) ... [2025-03-08 17:50:46,500 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:50:46" (1/1) ... [2025-03-08 17:50:46,531 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:50:46" (1/1) ... [2025-03-08 17:50:46,533 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:50:46" (1/1) ... [2025-03-08 17:50:46,537 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:50:46" (1/1) ... [2025-03-08 17:50:46,539 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:50:46" (1/1) ... [2025-03-08 17:50:46,545 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 17:50:46,546 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 17:50:46,546 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 17:50:46,546 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 17:50:46,547 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:50:46" (1/1) ... [2025-03-08 17:50:46,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:50:46,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:50:46,574 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) [2025-03-08 17:50:46,576 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 [2025-03-08 17:50:46,594 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-08 17:50:46,594 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-08 17:50:46,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 17:50:46,594 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-08 17:50:46,594 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-08 17:50:46,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 17:50:46,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 17:50:46,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 17:50:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 17:50:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 17:50:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-08 17:50:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 17:50:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 17:50:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 17:50:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 17:50:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 17:50:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 17:50:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 17:50:46,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 17:50:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 17:50:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 17:50:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2025-03-08 17:50:46,595 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2025-03-08 17:50:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 17:50:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 17:50:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 17:50:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 17:50:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 17:50:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-08 17:50:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member [2025-03-08 17:50:46,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member [2025-03-08 17:50:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 17:50:46,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 17:50:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 17:50:46,595 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 17:50:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-08 17:50:46,596 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-08 17:50:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 17:50:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 17:50:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 17:50:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 17:50:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 17:50:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-08 17:50:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 17:50:46,596 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 17:50:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 17:50:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 17:50:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 17:50:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 17:50:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 17:50:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 17:50:46,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-08 17:50:46,597 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2025-03-08 17:50:46,597 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2025-03-08 17:50:46,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 17:50:46,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 17:50:46,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 17:50:46,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 17:50:46,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 17:50:46,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-08 17:50:46,597 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-08 17:50:46,597 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-08 17:50:46,598 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-08 17:50:46,598 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-08 17:50:46,598 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded [2025-03-08 17:50:46,598 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded [2025-03-08 17:50:46,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 17:50:46,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 17:50:46,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 17:50:46,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 17:50:46,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 17:50:46,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 17:50:46,598 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_buf_equivalence [2025-03-08 17:50:46,598 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_buf_equivalence [2025-03-08 17:50:46,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 17:50:46,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 17:50:46,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 17:50:46,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 17:50:46,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 17:50:46,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 17:50:46,886 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 17:50:46,888 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 17:50:46,918 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-08 17:50:46,953 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-08 17:50:46,963 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-08 17:50:46,998 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7695: havoc #t~nondet818; [2025-03-08 17:50:47,035 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7353: havoc #t~mem679;havoc #t~mem680;havoc #t~short681;havoc #t~mem682.base, #t~mem682.offset;havoc #t~short683;havoc #t~mem684;havoc #t~mem685;havoc #t~mem686;havoc #t~short687;havoc #t~mem688;havoc #t~mem689.base, #t~mem689.offset;havoc #t~short690;havoc #t~short691;havoc #t~short692;havoc #t~short693; [2025-03-08 17:50:47,044 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-08 17:50:47,051 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6588: havoc #t~mem477; [2025-03-08 17:50:53,855 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2025-03-08 17:50:53,856 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 17:50:53,863 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 17:50:53,863 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 17:50:53,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:50:53 BoogieIcfgContainer [2025-03-08 17:50:53,864 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 17:50:53,867 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 17:50:53,868 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 17:50:53,871 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 17:50:53,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 05:50:44" (1/3) ... [2025-03-08 17:50:53,872 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea53914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:50:53, skipping insertion in model container [2025-03-08 17:50:53,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:50:46" (2/3) ... [2025-03-08 17:50:53,873 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea53914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:50:53, skipping insertion in model container [2025-03-08 17:50:53,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:50:53" (3/3) ... [2025-03-08 17:50:53,873 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_harness_negated.i [2025-03-08 17:50:53,883 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 17:50:53,884 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_eq_harness_negated.i that has 14 procedures, 153 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-08 17:50:53,921 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 17:50:53,928 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;@6922b547, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 17:50:53,929 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 17:50:53,931 INFO L276 IsEmpty]: Start isEmpty. Operand has 153 states, 92 states have (on average 1.2282608695652173) internal successors, (113), 93 states have internal predecessors, (113), 46 states have call successors, (46), 13 states have call predecessors, (46), 13 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2025-03-08 17:50:53,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2025-03-08 17:50:53,938 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:50:53,938 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 17:50:53,939 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:50:53,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:50:53,942 INFO L85 PathProgramCache]: Analyzing trace with hash 496265641, now seen corresponding path program 1 times [2025-03-08 17:50:53,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:50:53,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886327784] [2025-03-08 17:50:53,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:50:53,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:51:59,719 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-03-08 17:52:00,146 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-03-08 17:52:00,147 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:52:00,147 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:52:00,794 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2025-03-08 17:52:00,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:52:00,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886327784] [2025-03-08 17:52:00,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886327784] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:52:00,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393194000] [2025-03-08 17:52:00,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:52:00,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:52:00,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:52:00,803 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) [2025-03-08 17:52:00,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process