./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 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_c_str_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 9e4ccc391c063e90fb229c8b3638d2f1089d6ba2ff288522cf06bf650b1be9e5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 06:57:43,846 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 06:57:43,900 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-17 06:57:43,905 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 06:57:43,906 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 06:57:43,927 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 06:57:43,929 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 06:57:43,929 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 06:57:43,929 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 06:57:43,929 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 06:57:43,929 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 06:57:43,930 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 06:57:43,930 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 06:57:43,930 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 06:57:43,930 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 06:57:43,931 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 06:57:43,931 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 06:57:43,931 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 06:57:43,931 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 06:57:43,931 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 06:57:43,931 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 06:57:43,931 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 06:57:43,931 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 06:57:43,931 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 06:57:43,931 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 06:57:43,932 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 06:57:43,932 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 06:57:43,932 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 06:57:43,932 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 06:57:43,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 06:57:43,932 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 06:57:43,932 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 06:57:43,932 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 06:57:43,932 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 06:57:43,932 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 06:57:43,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 06:57:43,932 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 06:57:43,932 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 06:57:43,932 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 06:57:43,932 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 06:57:43,932 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 -> 9e4ccc391c063e90fb229c8b3638d2f1089d6ba2ff288522cf06bf650b1be9e5 [2025-03-17 06:57:44,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 06:57:44,135 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 06:57:44,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 06:57:44,137 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 06:57:44,137 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 06:57:44,138 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i [2025-03-17 06:57:45,258 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/020db37f9/741e25568f414df2be624e22d44bddcd/FLAG526188d52 [2025-03-17 06:57:45,649 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 06:57:45,650 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i [2025-03-17 06:57:45,680 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/020db37f9/741e25568f414df2be624e22d44bddcd/FLAG526188d52 [2025-03-17 06:57:45,810 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/020db37f9/741e25568f414df2be624e22d44bddcd [2025-03-17 06:57:45,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 06:57:45,813 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 06:57:45,814 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 06:57:45,814 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 06:57:45,818 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 06:57:45,818 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:57:45" (1/1) ... [2025-03-17 06:57:45,819 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c8b7d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:57:45, skipping insertion in model container [2025-03-17 06:57:45,819 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:57:45" (1/1) ... [2025-03-17 06:57:45,879 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 06:57:46,084 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_c_str_harness.i[4495,4508] [2025-03-17 06:57:46,094 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_c_str_harness.i[4555,4568] [2025-03-17 06:57:46,667 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:46,671 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:46,671 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:46,672 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:46,673 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:46,684 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:46,684 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:46,685 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:46,686 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:47,164 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:47,164 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:47,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 06:57:47,286 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 06:57:47,300 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_c_str_harness.i[4495,4508] [2025-03-17 06:57:47,301 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_c_str_harness.i[4555,4568] [2025-03-17 06:57:47,338 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:47,339 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:47,339 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:47,339 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:47,340 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:47,346 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:47,347 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:47,348 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:47,348 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:47,481 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2025-03-17 06:57:47,482 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:47,482 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:57:47,493 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2025-03-17 06:57:47,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 06:57:47,661 INFO L204 MainTranslator]: Completed translation [2025-03-17 06:57:47,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:57:47 WrapperNode [2025-03-17 06:57:47,662 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 06:57:47,664 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 06:57:47,664 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 06:57:47,664 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 06:57:47,668 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:57:47" (1/1) ... [2025-03-17 06:57:47,718 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:57:47" (1/1) ... [2025-03-17 06:57:47,786 INFO L138 Inliner]: procedures = 680, calls = 2633, calls flagged for inlining = 64, calls inlined = 10, statements flattened = 902 [2025-03-17 06:57:47,787 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 06:57:47,787 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 06:57:47,787 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 06:57:47,787 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 06:57:47,795 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:57:47" (1/1) ... [2025-03-17 06:57:47,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:57:47" (1/1) ... [2025-03-17 06:57:47,805 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:57:47" (1/1) ... [2025-03-17 06:57:47,856 INFO L175 MemorySlicer]: Split 556 memory accesses to 6 slices as follows [40, 2, 257, 13, 238, 6]. 46 percent of accesses are in the largest equivalence class. The 21 initializations are split as follows [8, 2, 0, 5, 6, 0]. The 493 writes are split as follows [2, 0, 257, 0, 232, 2]. [2025-03-17 06:57:47,857 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:57:47" (1/1) ... [2025-03-17 06:57:47,857 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:57:47" (1/1) ... [2025-03-17 06:57:47,887 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:57:47" (1/1) ... [2025-03-17 06:57:47,889 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:57:47" (1/1) ... [2025-03-17 06:57:47,894 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:57:47" (1/1) ... [2025-03-17 06:57:47,904 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:57:47" (1/1) ... [2025-03-17 06:57:47,916 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 06:57:47,917 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 06:57:47,917 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 06:57:47,917 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 06:57:47,918 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:57:47" (1/1) ... [2025-03-17 06:57:47,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 06:57:47,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:57:47,952 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) [2025-03-17 06:57:47,956 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 [2025-03-17 06:57:47,974 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2025-03-17 06:57:47,974 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2025-03-17 06:57:47,974 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-17 06:57:47,975 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-17 06:57:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 06:57:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-17 06:57:47,975 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-17 06:57:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-17 06:57:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-17 06:57:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-17 06:57:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-17 06:57:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-17 06:57:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-17 06:57:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 06:57:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 06:57:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 06:57:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 06:57:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-17 06:57:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-17 06:57:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 06:57:47,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 06:57:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 06:57:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 06:57:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2025-03-17 06:57:47,975 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2025-03-17 06:57:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 06:57:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 06:57:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 06:57:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 06:57:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-17 06:57:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-17 06:57:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 06:57:47,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 06:57:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-17 06:57:47,976 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-17 06:57:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-17 06:57:47,976 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-17 06:57:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-17 06:57:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-17 06:57:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-17 06:57:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-17 06:57:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-17 06:57:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-17 06:57:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 06:57:47,976 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 06:57:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 06:57:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 06:57:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 06:57:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 06:57:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-17 06:57:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-17 06:57:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-17 06:57:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-17 06:57:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-17 06:57:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-17 06:57:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-17 06:57:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-17 06:57:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-17 06:57:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-17 06:57:47,976 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-17 06:57:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-17 06:57:47,976 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-17 06:57:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 06:57:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 06:57:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 06:57:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 06:57:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-17 06:57:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-17 06:57:47,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 06:57:47,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 06:57:47,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 06:57:47,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 06:57:47,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-17 06:57:47,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-17 06:57:48,222 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 06:57:48,225 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 06:57:48,268 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-17 06:57:48,304 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-17 06:57:48,326 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L7799: havoc #t~mem828; [2025-03-17 06:57:48,340 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-17 06:57:48,380 INFO L1322 $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; [2025-03-17 06:57:48,396 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-17 06:57:55,438 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6600: havoc aws_byte_buf_is_bounded_#t~mem477#1; [2025-03-17 06:57:55,554 INFO L? ?]: Removed 114 outVars from TransFormulas that were not future-live. [2025-03-17 06:57:55,554 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 06:57:55,561 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 06:57:55,562 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 06:57:55,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 06:57:55 BoogieIcfgContainer [2025-03-17 06:57:55,562 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 06:57:55,565 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 06:57:55,566 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 06:57:55,569 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 06:57:55,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 06:57:45" (1/3) ... [2025-03-17 06:57:55,569 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b8d80e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:57:55, skipping insertion in model container [2025-03-17 06:57:55,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:57:47" (2/3) ... [2025-03-17 06:57:55,570 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b8d80e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:57:55, skipping insertion in model container [2025-03-17 06:57:55,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 06:57:55" (3/3) ... [2025-03-17 06:57:55,571 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_c_str_harness.i [2025-03-17 06:57:55,582 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 06:57:55,583 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_eq_c_str_harness.i that has 11 procedures, 132 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-17 06:57:55,624 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 06:57:55,634 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;@3c1d0137, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 06:57:55,635 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 06:57:55,637 INFO L276 IsEmpty]: Start isEmpty. Operand has 132 states, 84 states have (on average 1.2619047619047619) internal successors, (106), 86 states have internal predecessors, (106), 36 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2025-03-17 06:57:55,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2025-03-17 06:57:55,645 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:57:55,646 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 2, 2, 2, 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] [2025-03-17 06:57:55,647 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:57:55,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:57:55,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1519726599, now seen corresponding path program 1 times [2025-03-17 06:57:55,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:57:55,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411331630] [2025-03-17 06:57:55,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:57:55,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:58:58,336 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 121 statements into 1 equivalence classes. [2025-03-17 06:58:58,789 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 121 of 121 statements. [2025-03-17 06:58:58,790 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:58:58,790 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:58:59,528 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2025-03-17 06:58:59,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:58:59,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411331630] [2025-03-17 06:58:59,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411331630] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:58:59,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125128935] [2025-03-17 06:58:59,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:58:59,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:58:59,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:58:59,534 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) [2025-03-17 06:58:59,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process