./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness_negated.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_negated.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 885bac69872c2b34c2b244d1618f4ab60115ba2f5fec2456cdf32ad6a7277fb1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 02:38:48,816 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 02:38:48,872 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 02:38:48,876 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 02:38:48,879 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 02:38:48,897 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 02:38:48,899 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 02:38:48,899 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 02:38:48,899 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 02:38:48,899 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 02:38:48,900 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 02:38:48,900 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 02:38:48,900 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 02:38:48,900 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 02:38:48,900 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 02:38:48,900 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 02:38:48,901 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 02:38:48,901 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 02:38:48,901 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 02:38:48,901 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 02:38:48,901 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 02:38:48,901 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 02:38:48,901 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 02:38:48,901 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 02:38:48,901 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 02:38:48,902 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 02:38:48,902 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 02:38:48,902 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 02:38:48,902 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 02:38:48,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:38:48,902 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 02:38:48,902 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 02:38:48,902 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 02:38:48,903 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 02:38:48,903 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 02:38:48,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 02:38:48,903 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 02:38:48,903 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 02:38:48,903 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 02:38:48,903 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 02:38:48,903 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 -> 885bac69872c2b34c2b244d1618f4ab60115ba2f5fec2456cdf32ad6a7277fb1 [2025-03-04 02:38:49,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 02:38:49,117 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 02:38:49,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 02:38:49,120 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 02:38:49,121 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 02:38:49,121 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness_negated.i [2025-03-04 02:38:50,226 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/987c9263f/cdd788b31f424f9eb3e54d693f6d486a/FLAGf3d7b169d [2025-03-04 02:38:50,643 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 02:38:50,643 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness_negated.i [2025-03-04 02:38:50,666 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/987c9263f/cdd788b31f424f9eb3e54d693f6d486a/FLAGf3d7b169d [2025-03-04 02:38:50,801 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/987c9263f/cdd788b31f424f9eb3e54d693f6d486a [2025-03-04 02:38:50,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 02:38:50,804 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 02:38:50,805 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 02:38:50,805 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 02:38:50,808 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 02:38:50,808 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:38:50" (1/1) ... [2025-03-04 02:38:50,809 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47128af6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:50, skipping insertion in model container [2025-03-04 02:38:50,809 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:38:50" (1/1) ... [2025-03-04 02:38:50,865 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 02:38:51,034 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_negated.i[4495,4508] [2025-03-04 02:38:51,042 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_negated.i[4555,4568] [2025-03-04 02:38:51,488 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:51,490 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:51,491 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:51,492 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:51,492 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:51,503 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:51,504 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:51,505 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:51,506 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:51,903 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:51,904 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:51,968 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:38:52,016 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 02:38:52,030 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_negated.i[4495,4508] [2025-03-04 02:38:52,030 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_negated.i[4555,4568] [2025-03-04 02:38:52,062 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:52,062 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:52,062 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:52,062 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:52,063 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:52,067 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:52,068 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:52,068 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:52,068 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:52,201 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8245] [2025-03-04 02:38:52,202 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:52,203 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:38:52,213 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8731-8742] [2025-03-04 02:38:52,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:38:52,358 INFO L204 MainTranslator]: Completed translation [2025-03-04 02:38:52,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:52 WrapperNode [2025-03-04 02:38:52,359 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 02:38:52,364 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 02:38:52,364 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 02:38:52,364 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 02:38:52,368 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:52" (1/1) ... [2025-03-04 02:38:52,424 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:52" (1/1) ... [2025-03-04 02:38:52,483 INFO L138 Inliner]: procedures = 680, calls = 2633, calls flagged for inlining = 64, calls inlined = 10, statements flattened = 902 [2025-03-04 02:38:52,484 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 02:38:52,484 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 02:38:52,485 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 02:38:52,485 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 02:38:52,491 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:52" (1/1) ... [2025-03-04 02:38:52,491 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:52" (1/1) ... [2025-03-04 02:38:52,496 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:52" (1/1) ... [2025-03-04 02:38:52,548 INFO L175 MemorySlicer]: Split 556 memory accesses to 6 slices as follows [2, 257, 238, 6, 13, 40]. 46 percent of accesses are in the largest equivalence class. The 21 initializations are split as follows [2, 0, 6, 0, 5, 8]. The 493 writes are split as follows [0, 257, 232, 2, 0, 2]. [2025-03-04 02:38:52,548 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:52" (1/1) ... [2025-03-04 02:38:52,548 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:52" (1/1) ... [2025-03-04 02:38:52,586 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:52" (1/1) ... [2025-03-04 02:38:52,590 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:52" (1/1) ... [2025-03-04 02:38:52,599 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:52" (1/1) ... [2025-03-04 02:38:52,601 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:52" (1/1) ... [2025-03-04 02:38:52,609 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 02:38:52,609 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 02:38:52,609 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 02:38:52,609 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 02:38:52,610 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:52" (1/1) ... [2025-03-04 02:38:52,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:38:52,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:38:52,639 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 02:38:52,641 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 02:38:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2025-03-04 02:38:52,658 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2025-03-04 02:38:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-04 02:38:52,658 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-04 02:38:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 02:38:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-04 02:38:52,658 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-04 02:38:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 02:38:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 02:38:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 02:38:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 02:38:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 02:38:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-04 02:38:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 02:38:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 02:38:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 02:38:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 02:38:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 02:38:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-04 02:38:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 02:38:52,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 02:38:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 02:38:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 02:38:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2025-03-04 02:38:52,659 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2025-03-04 02:38:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 02:38:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 02:38:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 02:38:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 02:38:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 02:38:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-04 02:38:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 02:38:52,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 02:38:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 02:38:52,659 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 02:38:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-04 02:38:52,659 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-04 02:38:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 02:38:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 02:38:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 02:38:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 02:38:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 02:38:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-04 02:38:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 02:38:52,661 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 02:38:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 02:38:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 02:38:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 02:38:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 02:38:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 02:38:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 02:38:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-04 02:38:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 02:38:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 02:38:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 02:38:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 02:38:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 02:38:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-04 02:38:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-04 02:38:52,662 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-04 02:38:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-04 02:38:52,662 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-04 02:38:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 02:38:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 02:38:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 02:38:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 02:38:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 02:38:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-04 02:38:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 02:38:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 02:38:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 02:38:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 02:38:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 02:38:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-04 02:38:52,898 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 02:38:52,899 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 02:38:52,923 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-04 02:38:52,942 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-04 02:38:52,970 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7767: havoc #t~mem828; [2025-03-04 02:38:52,979 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-04 02:38:53,003 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7353: 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 02:38:53,014 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-04 02:38:59,883 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6588: havoc aws_byte_buf_is_bounded_#t~mem477#1; [2025-03-04 02:38:59,916 INFO L? ?]: Removed 119 outVars from TransFormulas that were not future-live. [2025-03-04 02:38:59,916 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 02:38:59,924 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 02:38:59,925 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 02:38:59,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:38:59 BoogieIcfgContainer [2025-03-04 02:38:59,926 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 02:38:59,927 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 02:38:59,927 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 02:38:59,930 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 02:38:59,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:38:50" (1/3) ... [2025-03-04 02:38:59,931 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39122a39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:38:59, skipping insertion in model container [2025-03-04 02:38:59,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:52" (2/3) ... [2025-03-04 02:38:59,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39122a39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:38:59, skipping insertion in model container [2025-03-04 02:38:59,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:38:59" (3/3) ... [2025-03-04 02:38:59,933 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_c_str_harness_negated.i [2025-03-04 02:38:59,943 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 02:38:59,944 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_eq_c_str_harness_negated.i that has 11 procedures, 138 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-04 02:38:59,977 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 02:38:59,984 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;@4757d803, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 02:38:59,984 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 02:38:59,987 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 02:38:59,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2025-03-04 02:38:59,993 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:38:59,994 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 02:38:59,994 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:38:59,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:38:59,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1564787415, now seen corresponding path program 1 times [2025-03-04 02:39:00,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:39:00,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070578615] [2025-03-04 02:39:00,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:39:00,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:40:08,486 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-03-04 02:40:08,938 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-03-04 02:40:08,939 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:40:08,939 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:40:09,617 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 02:40:09,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:40:09,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070578615] [2025-03-04 02:40:09,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070578615] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:40:09,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756451783] [2025-03-04 02:40:09,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:40:09,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:40:09,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:40:09,621 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 02:40:09,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process