./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_up_to_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_acquire_up_to_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 30b65818a1a5f98b95f4d6debf739e0d8660272b87140bdcdb24cc42ca73261b --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 18:16:39,575 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 18:16:39,622 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 18:16:39,625 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 18:16:39,625 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 18:16:39,648 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 18:16:39,649 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 18:16:39,649 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 18:16:39,650 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 18:16:39,650 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 18:16:39,650 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 18:16:39,650 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 18:16:39,650 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 18:16:39,650 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 18:16:39,651 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 18:16:39,651 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 18:16:39,651 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 18:16:39,651 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 18:16:39,651 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 18:16:39,651 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 18:16:39,651 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 18:16:39,651 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 18:16:39,651 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 18:16:39,651 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 18:16:39,651 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 18:16:39,651 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 18:16:39,652 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 18:16:39,652 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 18:16:39,652 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 18:16:39,652 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:16:39,652 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 18:16:39,652 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 18:16:39,652 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 18:16:39,652 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 18:16:39,652 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 18:16:39,652 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 18:16:39,652 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 18:16:39,652 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 18:16:39,652 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 18:16:39,652 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 18:16:39,652 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 -> 30b65818a1a5f98b95f4d6debf739e0d8660272b87140bdcdb24cc42ca73261b [2025-03-08 18:16:39,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 18:16:39,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 18:16:39,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 18:16:39,875 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 18:16:39,875 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 18:16:39,877 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_up_to_harness_negated.i [2025-03-08 18:16:40,984 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56f3de207/1f2ca49d536c4e238a75464a6f02da20/FLAG7c8198fb8 [2025-03-08 18:16:41,423 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 18:16:41,424 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_up_to_harness_negated.i [2025-03-08 18:16:41,459 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56f3de207/1f2ca49d536c4e238a75464a6f02da20/FLAG7c8198fb8 [2025-03-08 18:16:41,550 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56f3de207/1f2ca49d536c4e238a75464a6f02da20 [2025-03-08 18:16:41,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 18:16:41,554 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 18:16:41,555 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 18:16:41,555 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 18:16:41,558 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 18:16:41,559 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:16:41" (1/1) ... [2025-03-08 18:16:41,559 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46144e0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:41, skipping insertion in model container [2025-03-08 18:16:41,560 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:16:41" (1/1) ... [2025-03-08 18:16:41,644 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 18:16:41,890 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_acquire_up_to_harness_negated.i[4503,4516] [2025-03-08 18:16:41,898 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_acquire_up_to_harness_negated.i[4563,4576] [2025-03-08 18:16:42,868 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:42,869 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:42,869 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:42,870 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:42,870 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:42,880 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:42,880 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:42,881 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:42,882 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:43,501 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:43,504 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:43,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:16:43,691 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 18:16:43,707 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_acquire_up_to_harness_negated.i[4503,4516] [2025-03-08 18:16:43,707 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_acquire_up_to_harness_negated.i[4563,4576] [2025-03-08 18:16:43,755 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:43,755 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:43,755 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:43,756 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:43,756 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:43,793 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:43,794 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:43,795 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:43,795 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:43,872 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8237] [2025-03-08 18:16:43,873 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:43,874 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:43,889 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8957-8968] [2025-03-08 18:16:43,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:16:44,077 INFO L204 MainTranslator]: Completed translation [2025-03-08 18:16:44,078 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:44 WrapperNode [2025-03-08 18:16:44,078 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 18:16:44,079 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 18:16:44,079 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 18:16:44,079 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 18:16:44,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:44" (1/1) ... [2025-03-08 18:16:44,147 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:44" (1/1) ... [2025-03-08 18:16:44,208 INFO L138 Inliner]: procedures = 684, calls = 2931, calls flagged for inlining = 60, calls inlined = 11, statements flattened = 1229 [2025-03-08 18:16:44,208 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 18:16:44,212 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 18:16:44,213 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 18:16:44,213 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 18:16:44,223 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:44" (1/1) ... [2025-03-08 18:16:44,223 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:44" (1/1) ... [2025-03-08 18:16:44,230 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:44" (1/1) ... [2025-03-08 18:16:44,299 INFO L175 MemorySlicer]: Split 624 memory accesses to 5 slices as follows [257, 2, 243, 54, 68]. 41 percent of accesses are in the largest equivalence class. The 27 initializations are split as follows [0, 2, 11, 4, 10]. The 523 writes are split as follows [257, 0, 232, 30, 4]. [2025-03-08 18:16:44,302 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:44" (1/1) ... [2025-03-08 18:16:44,303 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:44" (1/1) ... [2025-03-08 18:16:44,372 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:44" (1/1) ... [2025-03-08 18:16:44,375 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:44" (1/1) ... [2025-03-08 18:16:44,390 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:44" (1/1) ... [2025-03-08 18:16:44,402 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:44" (1/1) ... [2025-03-08 18:16:44,423 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 18:16:44,424 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 18:16:44,424 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 18:16:44,424 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 18:16:44,425 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:44" (1/1) ... [2025-03-08 18:16:44,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:16:44,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:16:44,459 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 18:16:44,464 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 18:16:44,479 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-08 18:16:44,480 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-08 18:16:44,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 18:16:44,480 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-08 18:16:44,480 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-08 18:16:44,480 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr [2025-03-08 18:16:44,480 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr [2025-03-08 18:16:44,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 18:16:44,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 18:16:44,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 18:16:44,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 18:16:44,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 18:16:44,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 18:16:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 18:16:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 18:16:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 18:16:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 18:16:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-08 18:16:44,481 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-08 18:16:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 18:16:44,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 18:16:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 18:16:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 18:16:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 18:16:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 18:16:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 18:16:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 18:16:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 18:16:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_priv_xlate_order [2025-03-08 18:16:44,481 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_priv_xlate_order [2025-03-08 18:16:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 18:16:44,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 18:16:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 18:16:44,481 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 18:16:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-08 18:16:44,481 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-08 18:16:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 18:16:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 18:16:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 18:16:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 18:16:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 18:16:44,481 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr [2025-03-08 18:16:44,483 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr [2025-03-08 18:16:44,483 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 18:16:44,483 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 18:16:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_from_empty_array [2025-03-08 18:16:44,484 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_from_empty_array [2025-03-08 18:16:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 18:16:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 18:16:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 18:16:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 18:16:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 18:16:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 18:16:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 18:16:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 18:16:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 18:16:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 18:16:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 18:16:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_check_atomic_ptr [2025-03-08 18:16:44,484 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_check_atomic_ptr [2025-03-08 18:16:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure is_front_valid_state [2025-03-08 18:16:44,484 INFO L138 BoogieDeclarations]: Found implementation of procedure is_front_valid_state [2025-03-08 18:16:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-08 18:16:44,484 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-08 18:16:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure is_ends_valid_state [2025-03-08 18:16:44,484 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ends_valid_state [2025-03-08 18:16:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure s_buf_belongs_to_pool [2025-03-08 18:16:44,484 INFO L138 BoogieDeclarations]: Found implementation of procedure s_buf_belongs_to_pool [2025-03-08 18:16:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-08 18:16:44,484 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-08 18:16:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 18:16:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 18:16:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 18:16:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 18:16:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 18:16:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr_explicit [2025-03-08 18:16:44,484 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr_explicit [2025-03-08 18:16:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_is_valid [2025-03-08 18:16:44,484 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_is_valid [2025-03-08 18:16:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure is_middle_valid_state [2025-03-08 18:16:44,484 INFO L138 BoogieDeclarations]: Found implementation of procedure is_middle_valid_state [2025-03-08 18:16:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr_explicit [2025-03-08 18:16:44,484 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr_explicit [2025-03-08 18:16:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 18:16:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 18:16:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 18:16:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 18:16:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 18:16:44,780 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 18:16:44,782 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 18:16:44,814 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-08 18:16:44,869 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8769: 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; [2025-03-08 18:16:44,871 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-08 18:16:44,872 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-08 18:16:44,932 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 18:16:44,965 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5781: havoc #t~ret422;havoc #t~mem421.base, #t~mem421.offset; [2025-03-08 18:16:44,972 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-08 18:16:44,985 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 18:16:44,996 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L9182: havoc #t~mem1357.base, #t~mem1357.offset; [2025-03-08 18:16:45,013 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5612: havoc #t~ret408.base, #t~ret408.offset; [2025-03-08 18:16:45,059 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 18:16:45,084 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8199: 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; [2025-03-08 18:16:45,097 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L9193: havoc #t~mem1360.base, #t~mem1360.offset; [2025-03-08 18:16:51,986 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8759: havoc aws_ring_buffer_acquire_up_to_#t~ret1323#1; [2025-03-08 18:16:51,986 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8680: havoc aws_ring_buffer_acquire_up_to_~ring_space~1#1, aws_ring_buffer_acquire_up_to_~allocation_size~1#1; [2025-03-08 18:16:51,986 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8671: havoc aws_ring_buffer_acquire_up_to_#t~ret1273#1; [2025-03-08 18:16:51,986 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8688: havoc aws_ring_buffer_acquire_up_to_#t~ret1282#1; [2025-03-08 18:16:52,111 INFO L? ?]: Removed 227 outVars from TransFormulas that were not future-live. [2025-03-08 18:16:52,111 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 18:16:52,129 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 18:16:52,133 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 18:16:52,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:16:52 BoogieIcfgContainer [2025-03-08 18:16:52,133 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 18:16:52,135 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 18:16:52,135 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 18:16:52,138 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 18:16:52,138 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 06:16:41" (1/3) ... [2025-03-08 18:16:52,139 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b8b6887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:16:52, skipping insertion in model container [2025-03-08 18:16:52,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:44" (2/3) ... [2025-03-08 18:16:52,139 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b8b6887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:16:52, skipping insertion in model container [2025-03-08 18:16:52,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:16:52" (3/3) ... [2025-03-08 18:16:52,140 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_ring_buffer_acquire_up_to_harness_negated.i [2025-03-08 18:16:52,151 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 18:16:52,152 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_ring_buffer_acquire_up_to_harness_negated.i that has 22 procedures, 428 locations, 1 initial locations, 2 loop locations, and 4 error locations. [2025-03-08 18:16:52,201 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 18:16:52,209 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;@3d75bb98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 18:16:52,209 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-08 18:16:52,213 INFO L276 IsEmpty]: Start isEmpty. Operand has 428 states, 243 states have (on average 1.213991769547325) internal successors, (295), 247 states have internal predecessors, (295), 159 states have call successors, (159), 21 states have call predecessors, (159), 21 states have return successors, (159), 159 states have call predecessors, (159), 159 states have call successors, (159) [2025-03-08 18:16:52,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-03-08 18:16:52,219 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:16:52,219 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 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, 1, 1, 1, 1] [2025-03-08 18:16:52,220 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 18:16:52,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:16:52,224 INFO L85 PathProgramCache]: Analyzing trace with hash 889928156, now seen corresponding path program 1 times [2025-03-08 18:16:52,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:16:52,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148691676] [2025-03-08 18:16:52,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:16:52,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:18:00,175 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-03-08 18:18:00,660 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-03-08 18:18:00,661 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:18:00,661 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:18:01,328 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-03-08 18:18:01,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:18:01,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148691676] [2025-03-08 18:18:01,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148691676] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:18:01,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666227669] [2025-03-08 18:18:01,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:18:01,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:18:01,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:18:01,333 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 18:18:01,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process