./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.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_byte_buf_eq_harness.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 5ab09f6d00b35855a638bb480b97a9e37405f3b4b54804a74b9b206823c7f543 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 02:39:30,016 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 02:39:30,069 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 02:39:30,075 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 02:39:30,076 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 02:39:30,097 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 02:39:30,098 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 02:39:30,098 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 02:39:30,098 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 02:39:30,098 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 02:39:30,098 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 02:39:30,098 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 02:39:30,098 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 02:39:30,098 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 02:39:30,098 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 02:39:30,099 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 02:39:30,099 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 02:39:30,099 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 02:39:30,099 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 02:39:30,099 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 02:39:30,099 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 02:39:30,099 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 02:39:30,099 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 02:39:30,099 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 02:39:30,099 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 02:39:30,099 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 02:39:30,099 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 02:39:30,099 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 02:39:30,099 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 02:39:30,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:39:30,101 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 02:39:30,101 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 02:39:30,101 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 02:39:30,101 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 02:39:30,101 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 02:39:30,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 02:39:30,101 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 02:39:30,102 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 02:39:30,102 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 02:39:30,102 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 02:39:30,102 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 -> 5ab09f6d00b35855a638bb480b97a9e37405f3b4b54804a74b9b206823c7f543 [2025-03-04 02:39:30,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 02:39:30,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 02:39:30,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 02:39:30,340 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 02:39:30,341 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 02:39:30,341 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i [2025-03-04 02:39:31,481 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6adcbae71/46891bfd47ae439cb697a94ec5b62fd5/FLAG5409428f3 [2025-03-04 02:39:31,876 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 02:39:31,876 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i [2025-03-04 02:39:31,910 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6adcbae71/46891bfd47ae439cb697a94ec5b62fd5/FLAG5409428f3 [2025-03-04 02:39:32,036 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6adcbae71/46891bfd47ae439cb697a94ec5b62fd5 [2025-03-04 02:39:32,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 02:39:32,039 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 02:39:32,040 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 02:39:32,040 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 02:39:32,043 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 02:39:32,043 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:39:32" (1/1) ... [2025-03-04 02:39:32,044 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aeeed1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:39:32, skipping insertion in model container [2025-03-04 02:39:32,045 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:39:32" (1/1) ... [2025-03-04 02:39:32,106 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 02:39:32,281 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.i[4489,4502] [2025-03-04 02:39:32,292 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.i[4549,4562] [2025-03-04 02:39:32,805 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:32,805 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:32,806 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:32,806 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:32,807 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:32,822 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:32,823 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:32,824 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:32,827 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:33,204 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:33,205 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:33,251 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:39:33,289 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 02:39:33,302 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.i[4489,4502] [2025-03-04 02:39:33,302 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.i[4549,4562] [2025-03-04 02:39:33,342 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:33,343 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:33,344 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:33,344 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:33,344 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:33,350 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:33,352 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:33,353 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:33,353 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:33,461 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2025-03-04 02:39:33,462 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:33,463 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:33,513 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2025-03-04 02:39:33,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:39:33,656 INFO L204 MainTranslator]: Completed translation [2025-03-04 02:39:33,657 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:39:33 WrapperNode [2025-03-04 02:39:33,657 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 02:39:33,658 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 02:39:33,658 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 02:39:33,658 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 02:39:33,662 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:39:33" (1/1) ... [2025-03-04 02:39:33,764 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:39:33" (1/1) ... [2025-03-04 02:39:33,813 INFO L138 Inliner]: procedures = 680, calls = 2668, calls flagged for inlining = 60, calls inlined = 6, statements flattened = 902 [2025-03-04 02:39:33,814 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 02:39:33,814 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 02:39:33,815 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 02:39:33,815 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 02:39:33,822 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:39:33" (1/1) ... [2025-03-04 02:39:33,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:39:33" (1/1) ... [2025-03-04 02:39:33,827 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:39:33" (1/1) ... [2025-03-04 02:39:33,888 INFO L175 MemorySlicer]: Split 578 memory accesses to 6 slices as follows [2, 66, 257, 238, 6, 9]. 44 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [2, 16, 0, 6, 0, 5]. The 497 writes are split as follows [0, 6, 257, 232, 2, 0]. [2025-03-04 02:39:33,888 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:39:33" (1/1) ... [2025-03-04 02:39:33,890 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:39:33" (1/1) ... [2025-03-04 02:39:33,931 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:39:33" (1/1) ... [2025-03-04 02:39:33,934 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:39:33" (1/1) ... [2025-03-04 02:39:33,939 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:39:33" (1/1) ... [2025-03-04 02:39:33,941 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:39:33" (1/1) ... [2025-03-04 02:39:33,948 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 02:39:33,949 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 02:39:33,950 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 02:39:33,950 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 02:39:33,951 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:39:33" (1/1) ... [2025-03-04 02:39:33,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:39:33,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:39:33,980 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 02:39:33,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 02:39:34,002 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-04 02:39:34,003 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-04 02:39:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 02:39:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-04 02:39:34,003 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-04 02:39:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 02:39:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 02:39:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 02:39:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 02:39:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 02:39:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-04 02:39:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 02:39:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 02:39:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 02:39:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 02:39:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 02:39:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-04 02:39:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 02:39:34,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 02:39:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 02:39:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 02:39:34,005 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2025-03-04 02:39:34,005 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2025-03-04 02:39:34,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 02:39:34,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 02:39:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 02:39:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 02:39:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 02:39:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-04 02:39:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member [2025-03-04 02:39:34,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member [2025-03-04 02:39:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 02:39:34,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 02:39:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 02:39:34,006 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 02:39:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-04 02:39:34,006 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-04 02:39:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 02:39:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 02:39:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 02:39:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 02:39:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 02:39:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-04 02:39:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 02:39:34,006 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 02:39:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 02:39:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 02:39:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 02:39:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 02:39:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 02:39:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 02:39:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-04 02:39:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2025-03-04 02:39:34,007 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2025-03-04 02:39:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 02:39:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 02:39:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 02:39:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 02:39:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 02:39:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-04 02:39:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-04 02:39:34,007 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-04 02:39:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-04 02:39:34,007 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-04 02:39:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded [2025-03-04 02:39:34,007 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded [2025-03-04 02:39:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 02:39:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 02:39:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 02:39:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 02:39:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 02:39:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-04 02:39:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_buf_equivalence [2025-03-04 02:39:34,007 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_buf_equivalence [2025-03-04 02:39:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 02:39:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 02:39:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 02:39:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 02:39:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 02:39:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-04 02:39:34,220 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 02:39:34,221 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 02:39:34,247 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-04 02:39:34,282 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-04 02:39:34,296 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-04 02:39:34,331 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7727: havoc #t~nondet818; [2025-03-04 02:39:34,371 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7385: 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; [2025-03-04 02:39:34,380 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-04 02:39:34,385 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6600: havoc #t~mem477; [2025-03-04 02:39:41,208 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2025-03-04 02:39:41,208 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 02:39:41,215 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 02:39:41,216 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 02:39:41,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:39:41 BoogieIcfgContainer [2025-03-04 02:39:41,216 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 02:39:41,218 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 02:39:41,218 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 02:39:41,221 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 02:39:41,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:39:32" (1/3) ... [2025-03-04 02:39:41,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d15a4c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:39:41, skipping insertion in model container [2025-03-04 02:39:41,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:39:33" (2/3) ... [2025-03-04 02:39:41,222 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d15a4c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:39:41, skipping insertion in model container [2025-03-04 02:39:41,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:39:41" (3/3) ... [2025-03-04 02:39:41,222 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_harness.i [2025-03-04 02:39:41,233 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 02:39:41,237 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_eq_harness.i that has 14 procedures, 153 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-04 02:39:41,281 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 02:39:41,291 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;@14741fc9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 02:39:41,291 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 02:39:41,296 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) [2025-03-04 02:39:41,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2025-03-04 02:39:41,304 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:39:41,305 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] [2025-03-04 02:39:41,306 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:39:41,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:39:41,311 INFO L85 PathProgramCache]: Analyzing trace with hash 496265641, now seen corresponding path program 1 times [2025-03-04 02:39:41,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:39:41,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881651495] [2025-03-04 02:39:41,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:39:41,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:40:47,750 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-03-04 02:40:48,226 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-03-04 02:40:48,227 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:40:48,228 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:40:48,921 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2025-03-04 02:40:48,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:40:48,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881651495] [2025-03-04 02:40:48,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881651495] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:40:48,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176056614] [2025-03-04 02:40:48,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:40:48,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:40:48,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:40:48,925 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 02:40:48,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process