./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness_negated.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_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 97f1929f60deed797b33f238413f59b0edc96867527757b3538e00bc90721005 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 06:58:06,962 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 06:58:07,015 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-17 06:58:07,021 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 06:58:07,022 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 06:58:07,044 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 06:58:07,045 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 06:58:07,046 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 06:58:07,046 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 06:58:07,046 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 06:58:07,047 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 06:58:07,047 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 06:58:07,047 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 06:58:07,047 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 06:58:07,047 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 06:58:07,047 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 06:58:07,048 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 06:58:07,048 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 06:58:07,048 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 06:58:07,048 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 06:58:07,048 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 06:58:07,048 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 06:58:07,048 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 06:58:07,048 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 06:58:07,048 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 06:58:07,049 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 06:58:07,049 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 06:58:07,049 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 06:58:07,049 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 06:58:07,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 06:58:07,049 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 06:58:07,049 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 06:58:07,050 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 06:58:07,050 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 06:58:07,050 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 06:58:07,050 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 06:58:07,050 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 06:58:07,050 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 06:58:07,050 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 06:58:07,050 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 06:58:07,050 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 -> 97f1929f60deed797b33f238413f59b0edc96867527757b3538e00bc90721005 [2025-03-17 06:58:07,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 06:58:07,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 06:58:07,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 06:58:07,290 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 06:58:07,290 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 06:58:07,291 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness_negated.i [2025-03-17 06:58:08,485 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41a2c109e/a11d3e53545c4122980c60db45af2dbe/FLAG29d5438cb [2025-03-17 06:58:09,094 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 06:58:09,095 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness_negated.i [2025-03-17 06:58:09,135 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41a2c109e/a11d3e53545c4122980c60db45af2dbe/FLAG29d5438cb [2025-03-17 06:58:09,598 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41a2c109e/a11d3e53545c4122980c60db45af2dbe [2025-03-17 06:58:09,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 06:58:09,601 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 06:58:09,603 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 06:58:09,603 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 06:58:09,608 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 06:58:09,608 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:58:09" (1/1) ... [2025-03-17 06:58:09,609 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b8e7731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:58:09, skipping insertion in model container [2025-03-17 06:58:09,609 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:58:09" (1/1) ... [2025-03-17 06:58:09,686 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 06:58:09,903 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_harness_negated.i[4489,4502] [2025-03-17 06:58:09,911 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_harness_negated.i[4549,4562] [2025-03-17 06:58:10,525 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:10,526 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:10,526 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:10,527 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:10,528 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:10,536 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:10,536 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:10,537 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:10,538 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:10,927 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:10,927 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:10,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 06:58:11,044 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 06:58:11,056 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_harness_negated.i[4489,4502] [2025-03-17 06:58:11,058 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_harness_negated.i[4549,4562] [2025-03-17 06:58:11,089 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:11,090 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:11,090 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:11,090 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:11,092 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:11,096 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:11,096 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:11,096 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:11,097 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:11,178 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8245] [2025-03-17 06:58:11,180 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:11,180 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 06:58:11,188 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8731-8742] [2025-03-17 06:58:11,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 06:58:11,387 INFO L204 MainTranslator]: Completed translation [2025-03-17 06:58:11,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:58:11 WrapperNode [2025-03-17 06:58:11,388 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 06:58:11,389 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 06:58:11,389 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 06:58:11,389 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 06:58:11,393 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:58:11" (1/1) ... [2025-03-17 06:58:11,476 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:58:11" (1/1) ... [2025-03-17 06:58:11,539 INFO L138 Inliner]: procedures = 680, calls = 2668, calls flagged for inlining = 60, calls inlined = 6, statements flattened = 902 [2025-03-17 06:58:11,539 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 06:58:11,540 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 06:58:11,540 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 06:58:11,540 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 06:58:11,547 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:58:11" (1/1) ... [2025-03-17 06:58:11,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:58:11" (1/1) ... [2025-03-17 06:58:11,553 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:58:11" (1/1) ... [2025-03-17 06:58:11,613 INFO L175 MemorySlicer]: Split 578 memory accesses to 6 slices as follows [2, 257, 238, 66, 9, 6]. 44 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [2, 0, 6, 16, 5, 0]. The 497 writes are split as follows [0, 257, 232, 6, 0, 2]. [2025-03-17 06:58:11,613 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:58:11" (1/1) ... [2025-03-17 06:58:11,614 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:58:11" (1/1) ... [2025-03-17 06:58:11,639 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:58:11" (1/1) ... [2025-03-17 06:58:11,642 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:58:11" (1/1) ... [2025-03-17 06:58:11,648 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:58:11" (1/1) ... [2025-03-17 06:58:11,651 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:58:11" (1/1) ... [2025-03-17 06:58:11,660 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 06:58:11,661 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 06:58:11,661 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 06:58:11,661 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 06:58:11,662 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:58:11" (1/1) ... [2025-03-17 06:58:11,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 06:58:11,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:58:11,693 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 06:58:11,706 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 06:58:11,724 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-17 06:58:11,725 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-17 06:58:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 06:58:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-17 06:58:11,725 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-17 06:58:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-17 06:58:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-17 06:58:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-17 06:58:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-17 06:58:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-17 06:58:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-17 06:58:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 06:58:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 06:58:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 06:58:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 06:58:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-17 06:58:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-17 06:58:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 06:58:11,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 06:58:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 06:58:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 06:58:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2025-03-17 06:58:11,726 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2025-03-17 06:58:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 06:58:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 06:58:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 06:58:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 06:58:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-17 06:58:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-17 06:58:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member [2025-03-17 06:58:11,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member [2025-03-17 06:58:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 06:58:11,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 06:58:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-17 06:58:11,727 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-17 06:58:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-17 06:58:11,727 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-17 06:58:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-17 06:58:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-17 06:58:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-17 06:58:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-17 06:58:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-17 06:58:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-17 06:58:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 06:58:11,728 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 06:58:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 06:58:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 06:58:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 06:58:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 06:58:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-17 06:58:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-17 06:58:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-17 06:58:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2025-03-17 06:58:11,729 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2025-03-17 06:58:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-17 06:58:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-17 06:58:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-17 06:58:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-17 06:58:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-17 06:58:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-17 06:58:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-17 06:58:11,729 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-17 06:58:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-17 06:58:11,729 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-17 06:58:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded [2025-03-17 06:58:11,729 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded [2025-03-17 06:58:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 06:58:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 06:58:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 06:58:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 06:58:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-17 06:58:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-17 06:58:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_buf_equivalence [2025-03-17 06:58:11,730 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_buf_equivalence [2025-03-17 06:58:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 06:58:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 06:58:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 06:58:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 06:58:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-17 06:58:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-17 06:58:11,966 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 06:58:11,968 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 06:58:12,013 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-17 06:58:12,052 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-17 06:58:12,090 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-17 06:58:12,111 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L7695: havoc #t~nondet818; [2025-03-17 06:58:12,153 INFO L1322 $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; [2025-03-17 06:58:12,164 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-17 06:58:12,168 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6588: havoc #t~mem477; [2025-03-17 06:58:19,575 INFO L? ?]: Removed 93 outVars from TransFormulas that were not future-live. [2025-03-17 06:58:19,575 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 06:58:19,585 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 06:58:19,586 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 06:58:19,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 06:58:19 BoogieIcfgContainer [2025-03-17 06:58:19,586 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 06:58:19,588 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 06:58:19,588 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 06:58:19,592 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 06:58:19,592 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 06:58:09" (1/3) ... [2025-03-17 06:58:19,593 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@250f14dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:58:19, skipping insertion in model container [2025-03-17 06:58:19,593 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:58:11" (2/3) ... [2025-03-17 06:58:19,593 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@250f14dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:58:19, skipping insertion in model container [2025-03-17 06:58:19,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 06:58:19" (3/3) ... [2025-03-17 06:58:19,595 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_harness_negated.i [2025-03-17 06:58:19,608 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 06:58:19,610 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_eq_harness_negated.i that has 14 procedures, 149 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-17 06:58:19,659 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 06:58:19,669 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;@5447fa51, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 06:58:19,670 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 06:58:19,673 INFO L276 IsEmpty]: Start isEmpty. Operand has 149 states, 88 states have (on average 1.2386363636363635) internal successors, (109), 89 states have internal predecessors, (109), 46 states have call successors, (46), 13 states have call predecessors, (46), 13 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2025-03-17 06:58:19,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-03-17 06:58:19,682 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:58:19,684 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 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] [2025-03-17 06:58:19,684 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:58:19,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:58:19,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1582347672, now seen corresponding path program 1 times [2025-03-17 06:58:19,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:58:19,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488310713] [2025-03-17 06:58:19,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:58:19,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:59:36,874 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-03-17 06:59:37,477 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-03-17 06:59:37,478 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:59:37,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:59:38,250 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2025-03-17 06:59:38,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:59:38,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488310713] [2025-03-17 06:59:38,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488310713] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:59:38,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643543594] [2025-03-17 06:59:38,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:59:38,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:59:38,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:59:38,255 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 06:59:38,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process