./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 313603b40e1b2cfb6f9a6a17849070b35b0844cec0c9b07605ee920248758cc9 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:34:22,836 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:34:22,891 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-08 01:34:22,899 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:34:22,900 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:34:22,913 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:34:22,913 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:34:22,913 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:34:22,913 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:34:22,913 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:34:22,913 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:34:22,913 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:34:22,914 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:34:22,914 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:34:22,914 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:34:22,914 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:34:22,914 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:34:22,914 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:34:22,914 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:34:22,914 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:34:22,914 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:34:22,914 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:34:22,914 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:34:22,914 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:34:22,914 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:34:22,915 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:34:22,915 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:34:22,915 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:34:22,915 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:34:22,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:34:22,915 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:34:22,915 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:34:22,915 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:34:22,916 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:34:22,916 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:34:22,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:34:22,916 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:34:22,916 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:34:22,916 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:34:22,916 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:34:22,916 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 313603b40e1b2cfb6f9a6a17849070b35b0844cec0c9b07605ee920248758cc9 [2025-02-08 01:34:23,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:34:23,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:34:23,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:34:23,128 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:34:23,128 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:34:23,129 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i [2025-02-08 01:34:24,277 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c4229be75/402ad9aa386946beb32800000a23fe13/FLAGdbf1ab4e5 [2025-02-08 01:34:24,714 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:34:24,716 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i [2025-02-08 01:34:24,745 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c4229be75/402ad9aa386946beb32800000a23fe13/FLAGdbf1ab4e5 [2025-02-08 01:34:24,860 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c4229be75/402ad9aa386946beb32800000a23fe13 [2025-02-08 01:34:24,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:34:24,863 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:34:24,864 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:34:24,864 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:34:24,867 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:34:24,868 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:34:24" (1/1) ... [2025-02-08 01:34:24,868 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dcb1481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:34:24, skipping insertion in model container [2025-02-08 01:34:24,868 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:34:24" (1/1) ... [2025-02-08 01:34:24,931 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:34:25,119 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i[4503,4516] [2025-02-08 01:34:25,126 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i[4563,4576] [2025-02-08 01:34:25,614 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:34:25,615 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:34:25,617 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:34:25,617 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:34:25,618 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:34:25,632 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:34:25,635 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:34:25,636 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:34:25,636 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:34:26,019 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:34:26,019 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:34:26,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:34:26,148 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:34:26,158 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i[4503,4516] [2025-02-08 01:34:26,163 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i[4563,4576] [2025-02-08 01:34:26,193 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:34:26,193 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:34:26,194 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:34:26,194 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:34:26,194 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:34:26,199 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:34:26,199 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:34:26,200 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:34:26,200 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:34:26,299 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2025-02-08 01:34:26,300 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:34:26,300 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:34:26,312 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8755-8766] [2025-02-08 01:34:26,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:34:26,470 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:34:26,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:34:26 WrapperNode [2025-02-08 01:34:26,471 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:34:26,472 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:34:26,472 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:34:26,472 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:34:26,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:34:26" (1/1) ... [2025-02-08 01:34:26,546 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:34:26" (1/1) ... [2025-02-08 01:34:26,606 INFO L138 Inliner]: procedures = 679, calls = 2609, calls flagged for inlining = 58, calls inlined = 5, statements flattened = 793 [2025-02-08 01:34:26,606 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:34:26,607 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:34:26,607 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:34:26,607 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:34:26,620 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:34:26" (1/1) ... [2025-02-08 01:34:26,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:34:26" (1/1) ... [2025-02-08 01:34:26,629 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:34:26" (1/1) ... [2025-02-08 01:34:26,702 INFO L175 MemorySlicer]: Split 529 memory accesses to 5 slices as follows [2, 257, 25, 240, 5]. 49 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 0, 4, 6, 5]. The 493 writes are split as follows [0, 257, 4, 232, 0]. [2025-02-08 01:34:26,706 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:34:26" (1/1) ... [2025-02-08 01:34:26,707 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:34:26" (1/1) ... [2025-02-08 01:34:26,729 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:34:26" (1/1) ... [2025-02-08 01:34:26,732 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:34:26" (1/1) ... [2025-02-08 01:34:26,735 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:34:26" (1/1) ... [2025-02-08 01:34:26,737 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:34:26" (1/1) ... [2025-02-08 01:34:26,742 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:34:26,743 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:34:26,743 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:34:26,743 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:34:26,744 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:34:26" (1/1) ... [2025-02-08 01:34:26,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:34:26,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:34:26,772 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 01:34:26,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 01:34:26,797 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-02-08 01:34:26,797 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-02-08 01:34:26,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 01:34:26,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-08 01:34:26,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-08 01:34:26,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-08 01:34:26,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-08 01:34:26,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-08 01:34:26,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 01:34:26,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 01:34:26,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 01:34:26,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 01:34:26,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-08 01:34:26,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 01:34:26,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 01:34:26,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 01:34:26,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:34:26,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 01:34:26,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 01:34:26,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 01:34:26,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-08 01:34:26,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-08 01:34:26,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:34:26,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:34:26,800 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-08 01:34:26,800 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-08 01:34:26,800 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-02-08 01:34:26,800 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-02-08 01:34:26,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-08 01:34:26,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-08 01:34:26,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-08 01:34:26,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-08 01:34:26,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-08 01:34:26,801 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-08 01:34:26,801 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-08 01:34:26,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 01:34:26,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 01:34:26,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 01:34:26,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 01:34:26,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-08 01:34:26,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-08 01:34:26,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 01:34:26,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 01:34:26,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-08 01:34:26,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-08 01:34:26,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-08 01:34:26,802 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-02-08 01:34:26,802 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-02-08 01:34:26,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 01:34:26,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 01:34:26,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 01:34:26,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 01:34:26,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-08 01:34:26,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:34:26,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:34:26,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 01:34:26,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 01:34:26,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-08 01:34:27,018 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:34:27,020 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:34:27,061 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2025-02-08 01:34:27,064 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-02-08 01:34:27,065 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-02-08 01:34:27,116 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7377: havoc #t~mem678;havoc #t~mem679;havoc #t~short680;havoc #t~mem681.base, #t~mem681.offset;havoc #t~short682;havoc #t~mem683;havoc #t~mem684;havoc #t~mem685;havoc #t~short686;havoc #t~mem687;havoc #t~mem688.base, #t~mem688.offset;havoc #t~short689;havoc #t~short690;havoc #t~short691;havoc #t~short692; [2025-02-08 01:34:33,800 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L8231: havoc aws_byte_buf_from_empty_array_#t~mem1063#1;havoc aws_byte_buf_from_empty_array_#t~mem1064#1.base, aws_byte_buf_from_empty_array_#t~mem1064#1.offset;havoc aws_byte_buf_from_empty_array_#t~mem1065#1;havoc aws_byte_buf_from_empty_array_#t~mem1066#1.base, aws_byte_buf_from_empty_array_#t~mem1066#1.offset;call ULTIMATE.dealloc(aws_byte_buf_from_empty_array_~#buf~2#1.base, aws_byte_buf_from_empty_array_~#buf~2#1.offset);havoc aws_byte_buf_from_empty_array_~#buf~2#1.base, aws_byte_buf_from_empty_array_~#buf~2#1.offset; [2025-02-08 01:34:33,814 INFO L? ?]: Removed 60 outVars from TransFormulas that were not future-live. [2025-02-08 01:34:33,814 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:34:33,820 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:34:33,820 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:34:33,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:34:33 BoogieIcfgContainer [2025-02-08 01:34:33,820 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:34:33,822 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:34:33,822 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:34:33,825 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:34:33,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:34:24" (1/3) ... [2025-02-08 01:34:33,826 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e7643d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:34:33, skipping insertion in model container [2025-02-08 01:34:33,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:34:26" (2/3) ... [2025-02-08 01:34:33,826 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e7643d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:34:33, skipping insertion in model container [2025-02-08 01:34:33,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:34:33" (3/3) ... [2025-02-08 01:34:33,827 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_from_empty_array_harness.i [2025-02-08 01:34:33,836 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:34:33,838 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_from_empty_array_harness.i that has 7 procedures, 71 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-08 01:34:33,869 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:34:33,876 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;@6ca4e2a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:34:33,877 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 01:34:33,879 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 48 states have (on average 1.25) internal successors, (60), 49 states have internal predecessors, (60), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-02-08 01:34:33,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-02-08 01:34:33,883 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:34:33,883 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-02-08 01:34:33,884 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:34:33,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:34:33,887 INFO L85 PathProgramCache]: Analyzing trace with hash 601482705, now seen corresponding path program 1 times [2025-02-08 01:34:33,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:34:33,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057188699] [2025-02-08 01:34:33,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:34:33,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:35:45,293 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-08 01:35:45,807 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-08 01:35:45,808 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:35:45,808 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:35:46,443 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 01:35:46,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:35:46,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057188699] [2025-02-08 01:35:46,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057188699] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:35:46,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052037294] [2025-02-08 01:35:46,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:35:46,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:35:46,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:35:46,448 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:35:46,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process