./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_ring_buffer_release_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed 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_release_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 8d16217b02ecd6e481b32d24ab08e27bf0c28fb8762abe433cdf4ba726b5e322 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 18:17:09,676 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 18:17:09,730 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 18:17:09,735 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 18:17:09,736 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 18:17:09,751 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 18:17:09,752 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 18:17:09,753 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 18:17:09,753 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 18:17:09,753 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 18:17:09,753 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 18:17:09,753 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 18:17:09,754 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 18:17:09,754 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 18:17:09,754 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 18:17:09,755 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 18:17:09,755 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 18:17:09,755 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 18:17:09,755 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 18:17:09,755 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 18:17:09,755 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 18:17:09,755 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 18:17:09,755 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 18:17:09,755 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 18:17:09,756 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 18:17:09,756 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 18:17:09,756 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 18:17:09,756 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 18:17:09,756 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 18:17:09,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:17:09,756 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 18:17:09,756 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 18:17:09,757 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 18:17:09,757 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 18:17:09,757 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 18:17:09,757 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 18:17:09,757 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 18:17:09,757 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 18:17:09,757 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 18:17:09,757 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 18:17:09,757 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 ! 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 -> 8d16217b02ecd6e481b32d24ab08e27bf0c28fb8762abe433cdf4ba726b5e322 [2025-03-08 18:17:09,972 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 18:17:09,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 18:17:09,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 18:17:09,981 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 18:17:09,982 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 18:17:09,982 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_ring_buffer_release_harness_negated.i [2025-03-08 18:17:11,146 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50f0082b8/c5ccf284948646bb90fa4e433613d6ee/FLAG2af7bc566 [2025-03-08 18:17:11,575 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 18:17:11,576 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_ring_buffer_release_harness_negated.i [2025-03-08 18:17:11,608 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50f0082b8/c5ccf284948646bb90fa4e433613d6ee/FLAG2af7bc566 [2025-03-08 18:17:11,717 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50f0082b8/c5ccf284948646bb90fa4e433613d6ee [2025-03-08 18:17:11,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 18:17:11,719 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 18:17:11,720 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 18:17:11,720 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 18:17:11,723 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 18:17:11,723 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:17:11" (1/1) ... [2025-03-08 18:17:11,726 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fac38d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:17:11, skipping insertion in model container [2025-03-08 18:17:11,726 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:17:11" (1/1) ... [2025-03-08 18:17:11,790 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 18:17:11,949 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_ring_buffer_release_harness_negated.i[4497,4510] [2025-03-08 18:17:11,955 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_ring_buffer_release_harness_negated.i[4557,4570] [2025-03-08 18:17:12,386 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:12,386 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:12,386 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:12,387 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:12,387 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:12,401 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:12,401 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:12,402 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:12,403 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:12,805 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:12,806 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:12,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:17:12,981 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 18:17:12,992 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_ring_buffer_release_harness_negated.i[4497,4510] [2025-03-08 18:17:12,993 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_ring_buffer_release_harness_negated.i[4557,4570] [2025-03-08 18:17:13,024 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:13,024 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:13,025 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:13,025 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:13,026 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:13,030 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:13,031 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:13,032 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:13,032 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:13,119 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8237] [2025-03-08 18:17:13,121 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:13,121 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:17:13,145 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8963-8974] [2025-03-08 18:17:13,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:17:13,330 INFO L204 MainTranslator]: Completed translation [2025-03-08 18:17:13,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:17:13 WrapperNode [2025-03-08 18:17:13,331 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 18:17:13,332 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 18:17:13,332 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 18:17:13,332 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 18:17:13,337 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:17:13" (1/1) ... [2025-03-08 18:17:13,387 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:17:13" (1/1) ... [2025-03-08 18:17:13,453 INFO L138 Inliner]: procedures = 684, calls = 2948, calls flagged for inlining = 59, calls inlined = 9, statements flattened = 1030 [2025-03-08 18:17:13,454 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 18:17:13,454 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 18:17:13,455 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 18:17:13,455 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 18:17:13,461 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:17:13" (1/1) ... [2025-03-08 18:17:13,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:17:13" (1/1) ... [2025-03-08 18:17:13,468 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:17:13" (1/1) ... [2025-03-08 18:17:13,540 INFO L175 MemorySlicer]: Split 593 memory accesses to 6 slices as follows [2, 257, 6, 49, 243, 36]. 43 percent of accesses are in the largest equivalence class. The 31 initializations are split as follows [2, 0, 4, 10, 11, 4]. The 496 writes are split as follows [0, 257, 0, 4, 232, 3]. [2025-03-08 18:17:13,541 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:17:13" (1/1) ... [2025-03-08 18:17:13,541 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:17:13" (1/1) ... [2025-03-08 18:17:13,569 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:17:13" (1/1) ... [2025-03-08 18:17:13,576 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:17:13" (1/1) ... [2025-03-08 18:17:13,601 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:17:13" (1/1) ... [2025-03-08 18:17:13,612 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:17:13" (1/1) ... [2025-03-08 18:17:13,629 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 18:17:13,630 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 18:17:13,630 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 18:17:13,630 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 18:17:13,631 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:17:13" (1/1) ... [2025-03-08 18:17:13,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:17:13,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:17:13,658 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) [2025-03-08 18:17:13,660 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 [2025-03-08 18:17:13,675 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-08 18:17:13,676 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-08 18:17:13,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 18:17:13,676 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-08 18:17:13,676 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-08 18:17:13,677 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr [2025-03-08 18:17:13,677 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr [2025-03-08 18:17:13,677 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member_in_range [2025-03-08 18:17:13,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member_in_range [2025-03-08 18:17:13,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 18:17:13,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 18:17:13,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 18:17:13,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 18:17:13,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 18:17:13,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-08 18:17:13,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 18:17:13,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 18:17:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 18:17:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 18:17:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 18:17:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 18:17:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure is_empty_state [2025-03-08 18:17:13,678 INFO L138 BoogieDeclarations]: Found implementation of procedure is_empty_state [2025-03-08 18:17:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 18:17:13,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 18:17:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 18:17:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 18:17:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 18:17:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 18:17:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 18:17:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 18:17:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 18:17:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-08 18:17:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_priv_xlate_order [2025-03-08 18:17:13,679 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_priv_xlate_order [2025-03-08 18:17:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 18:17:13,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 18:17:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 18:17:13,679 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 18:17:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-08 18:17:13,679 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-08 18:17:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 18:17:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 18:17:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 18:17:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 18:17:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 18:17:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-08 18:17:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr [2025-03-08 18:17:13,679 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr [2025-03-08 18:17:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-08 18:17:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-08 18:17:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-03-08 18:17:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2025-03-08 18:17:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2025-03-08 18:17:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2025-03-08 18:17:13,679 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-08 18:17:13,679 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-08 18:17:13,679 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-03-08 18:17:13,679 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2025-03-08 18:17:13,679 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2025-03-08 18:17:13,679 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2025-03-08 18:17:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 18:17:13,679 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 18:17:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 18:17:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 18:17:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 18:17:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 18:17:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 18:17:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 18:17:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-08 18:17:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 18:17:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 18:17:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 18:17:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 18:17:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 18:17:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-08 18:17:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_check_atomic_ptr [2025-03-08 18:17:13,680 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_check_atomic_ptr [2025-03-08 18:17:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-08 18:17:13,680 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-08 18:17:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure is_ends_valid_state [2025-03-08 18:17:13,680 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ends_valid_state [2025-03-08 18:17:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure s_buf_belongs_to_pool [2025-03-08 18:17:13,680 INFO L138 BoogieDeclarations]: Found implementation of procedure s_buf_belongs_to_pool [2025-03-08 18:17:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-08 18:17:13,680 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-08 18:17:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr_explicit [2025-03-08 18:17:13,680 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr_explicit [2025-03-08 18:17:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_is_valid [2025-03-08 18:17:13,680 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_is_valid [2025-03-08 18:17:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure is_middle_valid_state [2025-03-08 18:17:13,680 INFO L138 BoogieDeclarations]: Found implementation of procedure is_middle_valid_state [2025-03-08 18:17:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr_explicit [2025-03-08 18:17:13,680 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr_explicit [2025-03-08 18:17:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 18:17:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 18:17:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 18:17:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 18:17:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 18:17:13,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 18:17:13,926 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 18:17:13,928 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 18:17:13,951 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-08 18:17:14,013 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8775: 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~short1333;havoc #t~mem1334.base, #t~mem1334.offset;havoc #t~mem1335.base, #t~mem1335.offset;havoc #t~short1336;havoc #t~mem1337.base, #t~mem1337.offset;havoc #t~mem1338;havoc #t~mem1339.base, #t~mem1339.offset;havoc #t~short1340; [2025-03-08 18:17:14,015 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-08 18:17:14,016 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-08 18:17:14,068 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7345: 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; [2025-03-08 18:17:14,101 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5781: havoc #t~ret422;havoc #t~mem421.base, #t~mem421.offset; [2025-03-08 18:17:14,106 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-08 18:17:14,136 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6032: havoc #t~mem452.base, #t~mem452.offset;havoc #t~mem453.base, #t~mem453.offset;havoc #t~short454; [2025-03-08 18:17:14,183 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5612: havoc #t~ret408.base, #t~ret408.offset; [2025-03-08 18:17:14,235 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6065: 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; [2025-03-08 18:17:14,243 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L9199: havoc #t~mem1365.base, #t~mem1365.offset; [2025-03-08 18:17:21,145 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L9188: havoc is_front_valid_state_#t~mem1362#1.base, is_front_valid_state_#t~mem1362#1.offset; [2025-03-08 18:17:21,268 INFO L? ?]: Removed 218 outVars from TransFormulas that were not future-live. [2025-03-08 18:17:21,268 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 18:17:21,289 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 18:17:21,289 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 18:17:21,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:17:21 BoogieIcfgContainer [2025-03-08 18:17:21,289 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 18:17:21,294 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 18:17:21,294 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 18:17:21,298 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 18:17:21,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 06:17:11" (1/3) ... [2025-03-08 18:17:21,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a9ea67e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:17:21, skipping insertion in model container [2025-03-08 18:17:21,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:17:13" (2/3) ... [2025-03-08 18:17:21,299 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a9ea67e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:17:21, skipping insertion in model container [2025-03-08 18:17:21,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:17:21" (3/3) ... [2025-03-08 18:17:21,301 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_ring_buffer_release_harness_negated.i [2025-03-08 18:17:21,311 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 18:17:21,313 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_ring_buffer_release_harness_negated.i that has 27 procedures, 339 locations, 1 initial locations, 9 loop locations, and 4 error locations. [2025-03-08 18:17:21,357 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 18:17:21,366 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;@5e6c68db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 18:17:21,366 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-08 18:17:21,371 INFO L276 IsEmpty]: Start isEmpty. Operand has 319 states, 204 states have (on average 1.2352941176470589) internal successors, (252), 208 states have internal predecessors, (252), 90 states have call successors, (90), 21 states have call predecessors, (90), 21 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2025-03-08 18:17:21,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-03-08 18:17:21,377 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:17:21,377 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-03-08 18:17:21,378 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting aws_atomic_store_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, aws_atomic_load_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 1 more)] === [2025-03-08 18:17:21,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:17:21,383 INFO L85 PathProgramCache]: Analyzing trace with hash -814411877, now seen corresponding path program 1 times [2025-03-08 18:17:21,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:17:21,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824645923] [2025-03-08 18:17:21,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:17:21,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:18:26,829 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-03-08 18:18:27,355 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-03-08 18:18:27,356 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:18:27,356 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:18:28,074 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-03-08 18:18:28,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:18:28,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824645923] [2025-03-08 18:18:28,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824645923] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:18:28,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049969709] [2025-03-08 18:18:28,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:18:28,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:18:28,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:18:28,077 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) [2025-03-08 18:18:28,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process