./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 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_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-?-798a7b3-m [2025-03-04 02:39:38,399 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 02:39:38,453 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 02:39:38,459 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 02:39:38,459 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 02:39:38,471 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 02:39:38,472 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 02:39:38,472 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 02:39:38,472 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 02:39:38,472 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 02:39:38,473 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 02:39:38,473 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 02:39:38,473 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 02:39:38,473 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 02:39:38,473 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 02:39:38,473 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 02:39:38,473 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 02:39:38,473 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 02:39:38,473 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 02:39:38,474 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 02:39:38,474 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 02:39:38,474 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 02:39:38,474 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 02:39:38,474 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 02:39:38,474 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 02:39:38,474 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 02:39:38,474 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 02:39:38,474 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 02:39:38,474 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 02:39:38,474 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:39:38,475 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 02:39:38,475 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 02:39:38,475 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 02:39:38,475 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 02:39:38,475 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 02:39:38,475 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 02:39:38,475 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 02:39:38,475 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 02:39:38,475 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 02:39:38,475 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 02:39:38,475 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 [2025-03-04 02:39:38,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 02:39:38,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 02:39:38,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 02:39:38,725 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 02:39:38,725 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 02:39:38,726 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness_negated.i [2025-03-04 02:39:39,855 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0852ec3ed/07e6c3166db24b758f0b8a3f97c650be/FLAGfec16d6f1 [2025-03-04 02:39:40,276 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 02:39:40,276 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness_negated.i [2025-03-04 02:39:40,303 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0852ec3ed/07e6c3166db24b758f0b8a3f97c650be/FLAGfec16d6f1 [2025-03-04 02:39:40,318 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0852ec3ed/07e6c3166db24b758f0b8a3f97c650be [2025-03-04 02:39:40,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 02:39:40,321 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 02:39:40,322 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 02:39:40,323 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 02:39:40,326 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 02:39:40,327 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:39:40" (1/1) ... [2025-03-04 02:39:40,328 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14a36679 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:39:40, skipping insertion in model container [2025-03-04 02:39:40,328 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:39:40" (1/1) ... [2025-03-04 02:39:40,384 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 02:39:40,544 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] [2025-03-04 02:39:40,550 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] [2025-03-04 02:39:40,971 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:40,971 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:40,972 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:40,972 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:40,973 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:40,981 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:40,981 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:40,982 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:40,982 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:41,350 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:41,352 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:41,407 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:39:41,450 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 02:39:41,461 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] [2025-03-04 02:39:41,461 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] [2025-03-04 02:39:41,500 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:41,504 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:41,505 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:41,505 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:41,505 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:41,512 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:41,514 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:41,514 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:41,515 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:41,630 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8245] [2025-03-04 02:39:41,632 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:41,633 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:39:41,642 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8731-8742] [2025-03-04 02:39:41,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:39:41,813 INFO L204 MainTranslator]: Completed translation [2025-03-04 02:39:41,814 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:39:41 WrapperNode [2025-03-04 02:39:41,814 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 02:39:41,815 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 02:39:41,815 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 02:39:41,815 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 02:39:41,820 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:39:41" (1/1) ... [2025-03-04 02:39:41,876 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:39:41" (1/1) ... [2025-03-04 02:39:41,929 INFO L138 Inliner]: procedures = 680, calls = 2668, calls flagged for inlining = 60, calls inlined = 6, statements flattened = 902 [2025-03-04 02:39:41,929 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 02:39:41,930 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 02:39:41,930 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 02:39:41,930 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 02:39:41,937 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:39:41" (1/1) ... [2025-03-04 02:39:41,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:39:41" (1/1) ... [2025-03-04 02:39:41,943 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:39:41" (1/1) ... [2025-03-04 02:39:42,003 INFO L175 MemorySlicer]: Split 578 memory accesses to 6 slices as follows [2, 257, 238, 6, 9, 66]. 44 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [2, 0, 6, 0, 5, 16]. The 497 writes are split as follows [0, 257, 232, 2, 0, 6]. [2025-03-04 02:39:42,003 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:39:41" (1/1) ... [2025-03-04 02:39:42,003 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:39:41" (1/1) ... [2025-03-04 02:39:42,059 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:39:41" (1/1) ... [2025-03-04 02:39:42,061 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:39:41" (1/1) ... [2025-03-04 02:39:42,072 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:39:41" (1/1) ... [2025-03-04 02:39:42,074 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:39:41" (1/1) ... [2025-03-04 02:39:42,083 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 02:39:42,087 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 02:39:42,087 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 02:39:42,087 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 02:39:42,088 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:39:41" (1/1) ... [2025-03-04 02:39:42,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:39:42,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:39:42,114 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 02:39:42,119 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 02:39:42,136 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-04 02:39:42,136 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-04 02:39:42,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 02:39:42,136 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-04 02:39:42,136 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-04 02:39:42,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 02:39:42,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 02:39:42,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 02:39:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 02:39:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 02:39:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-04 02:39:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 02:39:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 02:39:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 02:39:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 02:39:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 02:39:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-04 02:39:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 02:39:42,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 02:39:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 02:39:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 02:39:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2025-03-04 02:39:42,137 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2025-03-04 02:39:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 02:39:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 02:39:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 02:39:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 02:39:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 02:39:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-04 02:39:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member [2025-03-04 02:39:42,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member [2025-03-04 02:39:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 02:39:42,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 02:39:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 02:39:42,137 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 02:39:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-04 02:39:42,137 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-04 02:39:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 02:39:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 02:39:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 02:39:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 02:39:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 02:39:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-04 02:39:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 02:39:42,138 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 02:39:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 02:39:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 02:39:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 02:39:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 02:39:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 02:39:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 02:39:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-04 02:39:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2025-03-04 02:39:42,138 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2025-03-04 02:39:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 02:39:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 02:39:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 02:39:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 02:39:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 02:39:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-04 02:39:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-04 02:39:42,138 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-04 02:39:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-04 02:39:42,138 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-04 02:39:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded [2025-03-04 02:39:42,138 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded [2025-03-04 02:39:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 02:39:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 02:39:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 02:39:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 02:39:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 02:39:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-04 02:39:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_buf_equivalence [2025-03-04 02:39:42,141 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_buf_equivalence [2025-03-04 02:39:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 02:39:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 02:39:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 02:39:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 02:39:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 02:39:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-04 02:39:42,365 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 02:39:42,367 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 02:39:42,390 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-04 02:39:42,432 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-04 02:39:42,453 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-04 02:39:42,482 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7695: havoc #t~nondet818; [2025-03-04 02:39:42,521 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 02:39:42,537 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-04 02:39:42,544 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6588: havoc #t~mem477; [2025-03-04 02:39:49,213 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2025-03-04 02:39:49,213 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 02:39:49,223 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 02:39:49,223 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 02:39:49,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:39:49 BoogieIcfgContainer [2025-03-04 02:39:49,223 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 02:39:49,226 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 02:39:49,226 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 02:39:49,229 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 02:39:49,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:39:40" (1/3) ... [2025-03-04 02:39:49,230 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5717c1c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:39:49, skipping insertion in model container [2025-03-04 02:39:49,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:39:41" (2/3) ... [2025-03-04 02:39:49,230 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5717c1c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:39:49, skipping insertion in model container [2025-03-04 02:39:49,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:39:49" (3/3) ... [2025-03-04 02:39:49,231 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_harness_negated.i [2025-03-04 02:39:49,242 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 02:39:49,244 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_eq_harness_negated.i that has 14 procedures, 153 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-04 02:39:49,288 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 02:39:49,296 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;@62072abd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 02:39:49,298 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 02:39:49,301 INFO L276 IsEmpty]: Start isEmpty. Operand has 153 states, 92 states have (on average 1.2282608695652173) internal successors, (113), 93 states have internal predecessors, (113), 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) [2025-03-04 02:39:49,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2025-03-04 02:39:49,309 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:39:49,309 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, 1] [2025-03-04 02:39:49,309 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:39:49,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:39:49,315 INFO L85 PathProgramCache]: Analyzing trace with hash 496265641, now seen corresponding path program 1 times [2025-03-04 02:39:49,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:39:49,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795329971] [2025-03-04 02:39:49,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:39:49,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:40:58,597 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-03-04 02:40:59,069 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-03-04 02:40:59,069 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:40:59,070 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:40:59,745 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2025-03-04 02:40:59,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:40:59,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795329971] [2025-03-04 02:40:59,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795329971] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:40:59,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129967888] [2025-03-04 02:40:59,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:40:59,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:40:59,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:40:59,750 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 02:40:59,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process