./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_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_advance_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 9a96b91703f0cc76adc9b0fdbd8386a96920c1be21a810b6415a59c2166f1461 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 02:36:59,580 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 02:36:59,639 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 02:36:59,647 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 02:36:59,651 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 02:36:59,675 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 02:36:59,675 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 02:36:59,676 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 02:36:59,676 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 02:36:59,676 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 02:36:59,676 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 02:36:59,676 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 02:36:59,676 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 02:36:59,677 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 02:36:59,677 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 02:36:59,678 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 02:36:59,678 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 02:36:59,678 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 02:36:59,678 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 02:36:59,678 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 02:36:59,678 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 02:36:59,678 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 02:36:59,678 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 02:36:59,678 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 02:36:59,679 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 02:36:59,679 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 02:36:59,679 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 02:36:59,679 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 02:36:59,679 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 02:36:59,679 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:36:59,679 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 02:36:59,679 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 02:36:59,680 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 02:36:59,680 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 02:36:59,680 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 02:36:59,680 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 02:36:59,680 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 02:36:59,680 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 02:36:59,680 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 02:36:59,680 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 02:36:59,680 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 -> 9a96b91703f0cc76adc9b0fdbd8386a96920c1be21a810b6415a59c2166f1461 [2025-03-04 02:36:59,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 02:36:59,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 02:36:59,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 02:36:59,959 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 02:36:59,959 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 02:36:59,960 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i [2025-03-04 02:37:01,084 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7c8b0a28/ae15ad0ec8f54f70a3c9ef91083037f8/FLAGddf74fe91 [2025-03-04 02:37:01,479 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 02:37:01,479 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_advance_harness.i [2025-03-04 02:37:01,508 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7c8b0a28/ae15ad0ec8f54f70a3c9ef91083037f8/FLAGddf74fe91 [2025-03-04 02:37:01,636 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7c8b0a28/ae15ad0ec8f54f70a3c9ef91083037f8 [2025-03-04 02:37:01,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 02:37:01,638 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 02:37:01,639 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 02:37:01,639 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 02:37:01,642 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 02:37:01,643 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:37:01" (1/1) ... [2025-03-04 02:37:01,643 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e554876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:37:01, skipping insertion in model container [2025-03-04 02:37:01,643 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:37:01" (1/1) ... [2025-03-04 02:37:01,691 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 02:37:01,860 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_advance_harness.i[4494,4507] [2025-03-04 02:37:01,866 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_advance_harness.i[4554,4567] [2025-03-04 02:37:02,313 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:02,313 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:02,314 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:02,314 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:02,315 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:02,323 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:02,323 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:02,324 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:02,325 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:02,722 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:02,723 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:02,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:37:02,830 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 02:37:02,845 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_advance_harness.i[4494,4507] [2025-03-04 02:37:02,846 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_advance_harness.i[4554,4567] [2025-03-04 02:37:02,880 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:02,881 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:02,881 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:02,881 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:02,881 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:02,889 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:02,890 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:02,890 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:02,891 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:03,026 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8291] [2025-03-04 02:37:03,027 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:03,027 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:37:03,038 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8777-8788] [2025-03-04 02:37:03,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:37:03,218 INFO L204 MainTranslator]: Completed translation [2025-03-04 02:37:03,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:37:03 WrapperNode [2025-03-04 02:37:03,220 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 02:37:03,221 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 02:37:03,221 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 02:37:03,221 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 02:37:03,224 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:37:03" (1/1) ... [2025-03-04 02:37:03,284 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:37:03" (1/1) ... [2025-03-04 02:37:03,339 INFO L138 Inliner]: procedures = 680, calls = 2671, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 974 [2025-03-04 02:37:03,339 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 02:37:03,340 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 02:37:03,340 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 02:37:03,340 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 02:37:03,350 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:37:03" (1/1) ... [2025-03-04 02:37:03,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:37:03" (1/1) ... [2025-03-04 02:37:03,356 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:37:03" (1/1) ... [2025-03-04 02:37:03,413 INFO L175 MemorySlicer]: Split 591 memory accesses to 5 slices as follows [2, 257, 81, 6, 245]. 43 percent of accesses are in the largest equivalence class. The 25 initializations are split as follows [2, 0, 12, 0, 11]. The 508 writes are split as follows [0, 257, 17, 2, 232]. [2025-03-04 02:37:03,413 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:37:03" (1/1) ... [2025-03-04 02:37:03,414 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:37:03" (1/1) ... [2025-03-04 02:37:03,466 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:37:03" (1/1) ... [2025-03-04 02:37:03,472 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:37:03" (1/1) ... [2025-03-04 02:37:03,481 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:37:03" (1/1) ... [2025-03-04 02:37:03,483 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:37:03" (1/1) ... [2025-03-04 02:37:03,496 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 02:37:03,498 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 02:37:03,498 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 02:37:03,498 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 02:37:03,499 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:37:03" (1/1) ... [2025-03-04 02:37:03,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:37:03,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:37:03,528 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 02:37:03,533 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 02:37:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-04 02:37:03,547 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-04 02:37:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 02:37:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-04 02:37:03,547 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-04 02:37:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 02:37:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 02:37:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 02:37:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 02:37:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 02:37:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 02:37:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 02:37:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 02:37:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 02:37:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 02:37:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 02:37:03,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 02:37:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 02:37:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 02:37:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 02:37:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 02:37:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 02:37:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 02:37:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 02:37:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member [2025-03-04 02:37:03,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member [2025-03-04 02:37:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 02:37:03,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 02:37:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 02:37:03,547 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 02:37:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-04 02:37:03,548 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-04 02:37:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 02:37:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 02:37:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 02:37:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 02:37:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 02:37:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 02:37:03,548 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 02:37:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 02:37:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 02:37:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 02:37:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 02:37:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 02:37:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 02:37:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 02:37:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 02:37:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 02:37:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 02:37:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 02:37:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-04 02:37:03,548 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-04 02:37:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded [2025-03-04 02:37:03,548 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded [2025-03-04 02:37:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 02:37:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 02:37:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 02:37:03,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 02:37:03,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 02:37:03,549 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2025-03-04 02:37:03,549 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2025-03-04 02:37:03,550 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-03-04 02:37:03,550 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-03-04 02:37:03,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 02:37:03,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 02:37:03,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 02:37:03,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 02:37:03,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 02:37:03,778 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 02:37:03,780 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 02:37:03,809 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-04 02:37:03,864 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7342: havoc #t~ret656.base, #t~ret656.offset; [2025-03-04 02:37:03,913 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7399: havoc #t~mem681;havoc #t~mem682;havoc #t~short683;havoc #t~mem684.base, #t~mem684.offset;havoc #t~short685;havoc #t~mem686;havoc #t~mem687;havoc #t~mem688;havoc #t~short689;havoc #t~mem690;havoc #t~mem691.base, #t~mem691.offset;havoc #t~short692;havoc #t~short693;havoc #t~short694;havoc #t~short695; [2025-03-04 02:37:03,925 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-04 02:37:03,929 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6600: havoc #t~mem477; [2025-03-04 02:37:10,638 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L8237: havoc aws_byte_buf_from_array_#t~mem1061#1;havoc aws_byte_buf_from_array_#t~mem1062#1.base, aws_byte_buf_from_array_#t~mem1062#1.offset;havoc aws_byte_buf_from_array_#t~mem1063#1;havoc aws_byte_buf_from_array_#t~mem1064#1.base, aws_byte_buf_from_array_#t~mem1064#1.offset;call ULTIMATE.dealloc(aws_byte_buf_from_array_~#buf~1#1.base, aws_byte_buf_from_array_~#buf~1#1.offset);havoc aws_byte_buf_from_array_~#buf~1#1.base, aws_byte_buf_from_array_~#buf~1#1.offset; [2025-03-04 02:37:10,639 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-04 02:37:10,703 INFO L? ?]: Removed 109 outVars from TransFormulas that were not future-live. [2025-03-04 02:37:10,703 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 02:37:10,714 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 02:37:10,714 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 02:37:10,714 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:37:10 BoogieIcfgContainer [2025-03-04 02:37:10,717 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 02:37:10,719 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 02:37:10,720 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 02:37:10,723 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 02:37:10,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:37:01" (1/3) ... [2025-03-04 02:37:10,723 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e3cae31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:37:10, skipping insertion in model container [2025-03-04 02:37:10,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:37:03" (2/3) ... [2025-03-04 02:37:10,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e3cae31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:37:10, skipping insertion in model container [2025-03-04 02:37:10,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:37:10" (3/3) ... [2025-03-04 02:37:10,726 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_advance_harness.i [2025-03-04 02:37:10,739 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 02:37:10,740 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_advance_harness.i that has 12 procedures, 170 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-03-04 02:37:10,787 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 02:37:10,794 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;@29d102db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 02:37:10,794 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 02:37:10,797 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 103 states have (on average 1.2135922330097086) internal successors, (125), 103 states have internal predecessors, (125), 55 states have call successors, (55), 11 states have call predecessors, (55), 11 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2025-03-04 02:37:10,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2025-03-04 02:37:10,804 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:37:10,805 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 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] [2025-03-04 02:37:10,805 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:37:10,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:37:10,808 INFO L85 PathProgramCache]: Analyzing trace with hash -140569671, now seen corresponding path program 1 times [2025-03-04 02:37:10,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:37:10,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520713659] [2025-03-04 02:37:10,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:37:10,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:38:16,800 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-03-04 02:38:17,315 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-03-04 02:38:17,317 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:38:17,317 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:38:17,992 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2025-03-04 02:38:17,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:38:17,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520713659] [2025-03-04 02:38:17,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520713659] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:38:17,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875381590] [2025-03-04 02:38:17,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:38:17,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:38:17,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:38:17,997 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 02:38:17,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process