./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows 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_ring_buffer_acquire_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5d24b296895bb1aad8d34c2d7efdb39aad00aa64487bccb479278d36c5a9a207 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 15:51:32,663 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 15:51:32,726 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-17 15:51:32,731 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 15:51:32,732 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 15:51:32,752 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 15:51:32,752 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 15:51:32,753 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 15:51:32,753 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 15:51:32,753 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 15:51:32,753 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 15:51:32,754 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 15:51:32,754 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 15:51:32,754 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 15:51:32,754 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 15:51:32,755 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 15:51:32,755 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 15:51:32,755 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 15:51:32,755 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 15:51:32,755 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 15:51:32,755 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 15:51:32,755 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 15:51:32,755 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 15:51:32,755 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 15:51:32,755 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 15:51:32,755 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 15:51:32,756 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 15:51:32,756 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 15:51:32,756 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 15:51:32,756 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 15:51:32,756 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 15:51:32,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:51:32,756 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 15:51:32,757 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 15:51:32,757 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 15:51:32,757 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 15:51:32,757 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 15:51:32,757 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 15:51:32,757 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 15:51:32,757 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 15:51:32,757 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 15:51:32,757 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 15:51:32,757 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 ! overflow) ) 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 -> 5d24b296895bb1aad8d34c2d7efdb39aad00aa64487bccb479278d36c5a9a207 [2025-03-17 15:51:32,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 15:51:32,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 15:51:32,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 15:51:32,976 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 15:51:32,976 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 15:51:32,977 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_harness.i [2025-03-17 15:51:34,114 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af5d042c3/3291726674c64a6093b4b1fe83d726c5/FLAG19a81c7fe [2025-03-17 15:51:34,498 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 15:51:34,499 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_harness.i [2025-03-17 15:51:34,524 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af5d042c3/3291726674c64a6093b4b1fe83d726c5/FLAG19a81c7fe [2025-03-17 15:51:34,534 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af5d042c3/3291726674c64a6093b4b1fe83d726c5 [2025-03-17 15:51:34,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 15:51:34,537 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 15:51:34,538 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 15:51:34,539 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 15:51:34,542 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 15:51:34,543 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:51:34" (1/1) ... [2025-03-17 15:51:34,544 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f1e9d8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:51:34, skipping insertion in model container [2025-03-17 15:51:34,545 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:51:34" (1/1) ... [2025-03-17 15:51:34,608 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 15:51:35,337 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 15:51:35,337 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 15:51:35,338 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 15:51:35,339 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 15:51:35,340 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 15:51:35,356 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 15:51:35,356 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 15:51:35,359 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 15:51:35,360 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 15:51:35,827 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 15:51:35,827 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 15:51:35,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:51:35,928 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 15:51:35,973 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 15:51:35,973 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 15:51:35,973 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 15:51:35,975 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 15:51:35,975 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 15:51:35,980 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 15:51:35,980 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 15:51:35,981 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 15:51:35,981 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 15:51:36,115 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2025-03-17 15:51:36,117 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 15:51:36,117 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 15:51:36,134 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8989-9000] [2025-03-17 15:51:36,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:51:36,313 INFO L204 MainTranslator]: Completed translation [2025-03-17 15:51:36,313 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:51:36 WrapperNode [2025-03-17 15:51:36,313 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 15:51:36,314 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 15:51:36,314 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 15:51:36,314 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 15:51:36,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:51:36" (1/1) ... [2025-03-17 15:51:36,381 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:51:36" (1/1) ... [2025-03-17 15:51:36,453 INFO L138 Inliner]: procedures = 684, calls = 2945, calls flagged for inlining = 61, calls inlined = 12, statements flattened = 1209 [2025-03-17 15:51:36,454 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 15:51:36,454 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 15:51:36,454 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 15:51:36,454 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 15:51:36,460 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:51:36" (1/1) ... [2025-03-17 15:51:36,460 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:51:36" (1/1) ... [2025-03-17 15:51:36,466 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:51:36" (1/1) ... [2025-03-17 15:51:36,537 INFO L175 MemorySlicer]: Split 617 memory accesses to 5 slices as follows [257, 2, 47, 243, 68]. 42 percent of accesses are in the largest equivalence class. The 27 initializations are split as follows [0, 2, 4, 11, 10]. The 515 writes are split as follows [257, 0, 22, 232, 4]. [2025-03-17 15:51:36,537 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:51:36" (1/1) ... [2025-03-17 15:51:36,537 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:51:36" (1/1) ... [2025-03-17 15:51:36,575 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:51:36" (1/1) ... [2025-03-17 15:51:36,582 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:51:36" (1/1) ... [2025-03-17 15:51:36,599 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:51:36" (1/1) ... [2025-03-17 15:51:36,604 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:51:36" (1/1) ... [2025-03-17 15:51:36,612 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 15:51:36,613 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 15:51:36,613 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 15:51:36,613 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 15:51:36,614 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:51:36" (1/1) ... [2025-03-17 15:51:36,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:51:36,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:51:36,641 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 15:51:36,645 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 15:51:36,665 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-17 15:51:36,665 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-17 15:51:36,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 15:51:36,665 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-17 15:51:36,666 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-17 15:51:36,666 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr [2025-03-17 15:51:36,666 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr [2025-03-17 15:51:36,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-17 15:51:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-17 15:51:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-17 15:51:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-17 15:51:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-17 15:51:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 15:51:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 15:51:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 15:51:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 15:51:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-17 15:51:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-17 15:51:36,667 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-17 15:51:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 15:51:36,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 15:51:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 15:51:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 15:51:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 15:51:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 15:51:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 15:51:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 15:51:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-17 15:51:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_priv_xlate_order [2025-03-17 15:51:36,667 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_priv_xlate_order [2025-03-17 15:51:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 15:51:36,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 15:51:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-03-17 15:51:36,667 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-03-17 15:51:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-17 15:51:36,667 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-17 15:51:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-17 15:51:36,667 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-17 15:51:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-17 15:51:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-17 15:51:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-17 15:51:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-17 15:51:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-17 15:51:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr [2025-03-17 15:51:36,668 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr [2025-03-17 15:51:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 15:51:36,668 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 15:51:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_from_empty_array [2025-03-17 15:51:36,668 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_from_empty_array [2025-03-17 15:51:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 15:51:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 15:51:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 15:51:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 15:51:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-17 15:51:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-17 15:51:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-17 15:51:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-17 15:51:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-17 15:51:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-17 15:51:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-17 15:51:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_check_atomic_ptr [2025-03-17 15:51:36,668 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_check_atomic_ptr [2025-03-17 15:51:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure is_front_valid_state [2025-03-17 15:51:36,668 INFO L138 BoogieDeclarations]: Found implementation of procedure is_front_valid_state [2025-03-17 15:51:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-17 15:51:36,668 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-17 15:51:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure is_ends_valid_state [2025-03-17 15:51:36,668 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ends_valid_state [2025-03-17 15:51:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure s_buf_belongs_to_pool [2025-03-17 15:51:36,668 INFO L138 BoogieDeclarations]: Found implementation of procedure s_buf_belongs_to_pool [2025-03-17 15:51:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-17 15:51:36,668 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-17 15:51:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 15:51:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 15:51:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 15:51:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 15:51:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-17 15:51:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr_explicit [2025-03-17 15:51:36,669 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr_explicit [2025-03-17 15:51:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_is_valid [2025-03-17 15:51:36,669 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_is_valid [2025-03-17 15:51:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure is_middle_valid_state [2025-03-17 15:51:36,669 INFO L138 BoogieDeclarations]: Found implementation of procedure is_middle_valid_state [2025-03-17 15:51:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr_explicit [2025-03-17 15:51:36,669 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr_explicit [2025-03-17 15:51:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 15:51:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 15:51:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 15:51:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 15:51:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-17 15:51:36,949 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 15:51:36,950 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 15:51:36,989 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-17 15:51:37,021 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8801: havoc #t~mem1324.base, #t~mem1324.offset;havoc #t~mem1325.base, #t~mem1325.offset;havoc #t~short1326;havoc #t~mem1327.base, #t~mem1327.offset;havoc #t~short1328;havoc #t~mem1329.base, #t~mem1329.offset;havoc #t~mem1330.base, #t~mem1330.offset;havoc #t~short1331;havoc #t~mem1332.base, #t~mem1332.offset;havoc #t~mem1333;havoc #t~mem1334.base, #t~mem1334.offset;havoc #t~short1335; [2025-03-17 15:51:37,024 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-17 15:51:37,025 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-17 15:51:37,089 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L7377: havoc #t~mem678;havoc #t~mem679;havoc #t~short680;havoc #t~mem681.base, #t~mem681.offset;havoc #t~short682;havoc #t~mem683;havoc #t~mem684;havoc #t~mem685;havoc #t~short686;havoc #t~mem687;havoc #t~mem688.base, #t~mem688.offset;havoc #t~short689;havoc #t~short690;havoc #t~short691;havoc #t~short692; [2025-03-17 15:51:37,118 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L5793: havoc #t~ret422;havoc #t~mem421.base, #t~mem421.offset; [2025-03-17 15:51:37,124 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-17 15:51:37,134 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6044: havoc #t~mem452.base, #t~mem452.offset;havoc #t~mem453.base, #t~mem453.offset;havoc #t~short454; [2025-03-17 15:51:37,146 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L9214: havoc #t~mem1357.base, #t~mem1357.offset; [2025-03-17 15:51:37,161 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L5624: havoc #t~ret408.base, #t~ret408.offset; [2025-03-17 15:51:37,206 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6077: havoc #t~mem464.base, #t~mem464.offset;havoc #t~mem465.base, #t~mem465.offset;havoc #t~mem466.base, #t~mem466.offset;havoc #t~short467;havoc #t~short468;havoc #t~mem469.base, #t~mem469.offset;havoc #t~short470; [2025-03-17 15:51:37,231 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8231: havoc #t~mem1063;havoc #t~mem1064.base, #t~mem1064.offset;havoc #t~mem1065;havoc #t~mem1066.base, #t~mem1066.offset;call ULTIMATE.dealloc(~#buf~2.base, ~#buf~2.offset);havoc ~#buf~2.base, ~#buf~2.offset; [2025-03-17 15:51:37,241 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L9225: havoc #t~mem1360.base, #t~mem1360.offset; [2025-03-17 15:51:43,986 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8644: havoc aws_ring_buffer_acquire_#t~ret1238#1; [2025-03-17 15:51:43,986 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8630-2: havoc aws_ring_buffer_acquire_#t~ret1229#1; [2025-03-17 15:51:43,986 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8638: havoc aws_ring_buffer_acquire_~ring_space~0#1; [2025-03-17 15:51:43,986 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8688: havoc aws_ring_buffer_acquire_#t~ret1268#1; [2025-03-17 15:51:44,097 INFO L? ?]: Removed 212 outVars from TransFormulas that were not future-live. [2025-03-17 15:51:44,098 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 15:51:44,120 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 15:51:44,125 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 15:51:44,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:51:44 BoogieIcfgContainer [2025-03-17 15:51:44,126 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 15:51:44,127 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 15:51:44,128 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 15:51:44,131 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 15:51:44,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 03:51:34" (1/3) ... [2025-03-17 15:51:44,132 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d600e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:51:44, skipping insertion in model container [2025-03-17 15:51:44,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:51:36" (2/3) ... [2025-03-17 15:51:44,132 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d600e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:51:44, skipping insertion in model container [2025-03-17 15:51:44,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:51:44" (3/3) ... [2025-03-17 15:51:44,134 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_ring_buffer_acquire_harness.i [2025-03-17 15:51:44,146 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 15:51:44,148 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_ring_buffer_acquire_harness.i that has 23 procedures, 410 locations, 1 initial locations, 3 loop locations, and 4 error locations. [2025-03-17 15:51:44,201 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 15:51:44,209 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;@51b57bf3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 15:51:44,210 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-17 15:51:44,213 INFO L276 IsEmpty]: Start isEmpty. Operand has 410 states, 235 states have (on average 1.225531914893617) internal successors, (288), 240 states have internal predecessors, (288), 148 states have call successors, (148), 22 states have call predecessors, (148), 22 states have return successors, (148), 148 states have call predecessors, (148), 148 states have call successors, (148) [2025-03-17 15:51:44,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-03-17 15:51:44,218 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:51:44,219 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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] [2025-03-17 15:51:44,219 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting aws_atomic_store_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [aws_atomic_load_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, aws_atomic_store_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 2 more)] === [2025-03-17 15:51:44,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:51:44,223 INFO L85 PathProgramCache]: Analyzing trace with hash -2069549294, now seen corresponding path program 1 times [2025-03-17 15:51:44,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:51:44,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627513049] [2025-03-17 15:51:44,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:51:44,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:52:50,888 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-17 15:52:51,456 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-17 15:52:51,458 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:52:51,458 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:52:52,169 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-03-17 15:52:52,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:52:52,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627513049] [2025-03-17 15:52:52,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627513049] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:52:52,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699530842] [2025-03-17 15:52:52,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:52:52,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:52:52,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:52:52,174 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 15:52:52,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process