./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 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_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-?-798a7b3-m [2025-03-04 02:38:47,609 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 02:38:47,658 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 02:38:47,661 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 02:38:47,661 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 02:38:47,675 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 02:38:47,676 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 02:38:47,676 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 02:38:47,676 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 02:38:47,676 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 02:38:47,676 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 02:38:47,676 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 02:38:47,677 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 02:38:47,677 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 02:38:47,677 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 02:38:47,677 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 02:38:47,677 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 02:38:47,677 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 02:38:47,677 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 02:38:47,677 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 02:38:47,677 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 02:38:47,677 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 02:38:47,678 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 02:38:47,679 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 02:38:47,679 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 02:38:47,679 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 02:38:47,679 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 02:38:47,679 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 02:38:47,679 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 02:38:47,679 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:38:47,679 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 02:38:47,679 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 02:38:47,679 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 02:38:47,679 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 02:38:47,680 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 02:38:47,680 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 02:38:47,680 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 02:38:47,680 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 02:38:47,680 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 02:38:47,680 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 02:38:47,680 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 -> 9e4ccc391c063e90fb229c8b3638d2f1089d6ba2ff288522cf06bf650b1be9e5 [2025-03-04 02:38:47,895 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 02:38:47,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 02:38:47,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 02:38:47,904 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 02:38:47,904 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 02:38:47,905 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i [2025-03-04 02:38:49,029 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e60276ca/4fc109b71b154cbfa63eb248691865c9/FLAGe6f754445 [2025-03-04 02:38:49,454 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 02:38:49,455 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i [2025-03-04 02:38:49,478 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e60276ca/4fc109b71b154cbfa63eb248691865c9/FLAGe6f754445 [2025-03-04 02:38:49,604 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e60276ca/4fc109b71b154cbfa63eb248691865c9 [2025-03-04 02:38:49,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 02:38:49,608 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 02:38:49,609 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 02:38:49,609 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 02:38:49,612 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 02:38:49,613 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:38:49" (1/1) ... [2025-03-04 02:38:49,613 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a273fd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:49, skipping insertion in model container [2025-03-04 02:38:49,613 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:38:49" (1/1) ... [2025-03-04 02:38:49,679 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 02:38:49,897 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] [2025-03-04 02:38:49,904 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] [2025-03-04 02:38:50,371 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:50,373 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:50,373 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:50,373 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:50,374 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:50,385 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:50,385 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:50,386 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:50,386 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:50,772 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:50,772 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:50,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:38:50,869 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 02:38:50,882 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] [2025-03-04 02:38:50,883 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] [2025-03-04 02:38:50,919 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:50,919 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:50,919 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:50,920 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:50,921 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:50,925 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:50,925 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:50,927 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:50,927 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:51,038 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2025-03-04 02:38:51,040 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:51,040 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:51,049 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2025-03-04 02:38:51,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:38:51,232 INFO L204 MainTranslator]: Completed translation [2025-03-04 02:38:51,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:51 WrapperNode [2025-03-04 02:38:51,233 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 02:38:51,233 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 02:38:51,233 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 02:38:51,233 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 02:38:51,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:51" (1/1) ... [2025-03-04 02:38:51,296 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:51" (1/1) ... [2025-03-04 02:38:51,351 INFO L138 Inliner]: procedures = 680, calls = 2633, calls flagged for inlining = 64, calls inlined = 10, statements flattened = 902 [2025-03-04 02:38:51,352 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 02:38:51,353 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 02:38:51,353 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 02:38:51,353 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 02:38:51,361 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:51" (1/1) ... [2025-03-04 02:38:51,361 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:51" (1/1) ... [2025-03-04 02:38:51,366 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:51" (1/1) ... [2025-03-04 02:38:51,420 INFO L175 MemorySlicer]: Split 556 memory accesses to 6 slices as follows [2, 257, 238, 6, 40, 13]. 46 percent of accesses are in the largest equivalence class. The 21 initializations are split as follows [2, 0, 6, 0, 8, 5]. The 493 writes are split as follows [0, 257, 232, 2, 2, 0]. [2025-03-04 02:38:51,420 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:51" (1/1) ... [2025-03-04 02:38:51,420 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:51" (1/1) ... [2025-03-04 02:38:51,451 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:51" (1/1) ... [2025-03-04 02:38:51,458 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:51" (1/1) ... [2025-03-04 02:38:51,470 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:51" (1/1) ... [2025-03-04 02:38:51,473 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:51" (1/1) ... [2025-03-04 02:38:51,485 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 02:38:51,486 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 02:38:51,487 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 02:38:51,487 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 02:38:51,487 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:51" (1/1) ... [2025-03-04 02:38:51,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:38:51,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:38:51,511 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 02:38:51,526 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 02:38:51,543 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2025-03-04 02:38:51,544 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2025-03-04 02:38:51,544 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-04 02:38:51,545 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-04 02:38:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 02:38:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-04 02:38:51,545 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-04 02:38:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 02:38:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 02:38:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 02:38:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 02:38:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 02:38:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-04 02:38:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 02:38:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 02:38:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 02:38:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 02:38:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 02:38:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-04 02:38:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 02:38:51,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 02:38:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 02:38:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 02:38:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2025-03-04 02:38:51,545 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2025-03-04 02:38:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 02:38:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 02:38:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 02:38:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 02:38:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 02:38:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-04 02:38:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 02:38:51,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 02:38:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 02:38:51,545 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 02:38:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-04 02:38:51,545 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-04 02:38:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 02:38:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 02:38:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 02:38:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 02:38:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 02:38:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-04 02:38:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 02:38:51,546 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 02:38:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 02:38:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 02:38:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 02:38:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 02:38:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 02:38:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 02:38:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-04 02:38:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 02:38:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 02:38:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 02:38:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 02:38:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 02:38:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-04 02:38:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-04 02:38:51,546 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-04 02:38:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-04 02:38:51,546 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-04 02:38:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 02:38:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 02:38:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 02:38:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 02:38:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 02:38:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-04 02:38:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 02:38:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 02:38:51,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 02:38:51,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 02:38:51,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 02:38:51,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-04 02:38:51,739 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 02:38:51,740 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 02:38:51,768 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-04 02:38:51,797 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-04 02:38:51,846 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7799: havoc #t~mem828; [2025-03-04 02:38:51,859 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-04 02:38:51,898 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7385: havoc #t~mem679;havoc #t~mem680;havoc #t~short681;havoc #t~mem682.base, #t~mem682.offset;havoc #t~short683;havoc #t~mem684;havoc #t~mem685;havoc #t~mem686;havoc #t~short687;havoc #t~mem688;havoc #t~mem689.base, #t~mem689.offset;havoc #t~short690;havoc #t~short691;havoc #t~short692;havoc #t~short693; [2025-03-04 02:38:51,907 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-04 02:38:58,812 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6600: havoc aws_byte_buf_is_bounded_#t~mem477#1; [2025-03-04 02:38:58,839 INFO L? ?]: Removed 119 outVars from TransFormulas that were not future-live. [2025-03-04 02:38:58,839 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 02:38:58,846 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 02:38:58,846 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 02:38:58,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:38:58 BoogieIcfgContainer [2025-03-04 02:38:58,846 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 02:38:58,848 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 02:38:58,848 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 02:38:58,851 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 02:38:58,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:38:49" (1/3) ... [2025-03-04 02:38:58,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d9a720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:38:58, skipping insertion in model container [2025-03-04 02:38:58,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:51" (2/3) ... [2025-03-04 02:38:58,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d9a720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:38:58, skipping insertion in model container [2025-03-04 02:38:58,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:38:58" (3/3) ... [2025-03-04 02:38:58,853 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_c_str_harness.i [2025-03-04 02:38:58,863 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 02:38:58,865 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_eq_c_str_harness.i that has 11 procedures, 138 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-04 02:38:58,910 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 02:38:58,920 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;@63394baf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 02:38:58,920 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 02:38:58,924 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 90 states have (on average 1.2444444444444445) internal successors, (112), 92 states have internal predecessors, (112), 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) [2025-03-04 02:38:58,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2025-03-04 02:38:58,933 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:38:58,933 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, 1, 1, 1] [2025-03-04 02:38:58,933 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:38:58,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:38:58,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1564787415, now seen corresponding path program 1 times [2025-03-04 02:38:58,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:38:58,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713889676] [2025-03-04 02:38:58,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:38:58,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:40:05,492 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-03-04 02:40:05,988 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-03-04 02:40:05,989 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:40:05,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:40:06,750 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2025-03-04 02:40:06,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:40:06,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713889676] [2025-03-04 02:40:06,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713889676] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:40:06,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573189424] [2025-03-04 02:40:06,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:40:06,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:40:06,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:40:06,756 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 02:40:06,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process