./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 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_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-?-8fc3dc6-m [2025-03-17 07:23:37,146 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 07:23:37,194 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-17 07:23:37,198 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 07:23:37,198 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 07:23:37,219 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 07:23:37,219 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 07:23:37,220 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 07:23:37,220 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 07:23:37,220 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 07:23:37,220 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 07:23:37,220 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 07:23:37,220 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 07:23:37,220 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 07:23:37,220 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 07:23:37,222 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 07:23:37,222 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 07:23:37,222 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 07:23:37,223 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 07:23:37,223 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 07:23:37,223 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 07:23:37,223 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 07:23:37,223 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 07:23:37,223 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 07:23:37,224 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 07:23:37,224 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 07:23:37,224 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 07:23:37,224 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 07:23:37,224 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 07:23:37,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:23:37,224 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 07:23:37,224 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 07:23:37,224 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 07:23:37,224 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 07:23:37,224 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 07:23:37,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 07:23:37,224 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 07:23:37,224 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 07:23:37,224 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 07:23:37,224 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 07:23:37,224 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 [2025-03-17 07:23:37,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 07:23:37,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 07:23:37,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 07:23:37,493 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 07:23:37,494 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 07:23:37,495 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_up_to_harness_negated.i [2025-03-17 07:23:38,724 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a155800d/87786612c1dd44b3b5b5f7cb02bb0b6d/FLAG013c9c9f6 [2025-03-17 07:23:39,178 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 07:23:39,179 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_up_to_harness_negated.i [2025-03-17 07:23:39,215 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a155800d/87786612c1dd44b3b5b5f7cb02bb0b6d/FLAG013c9c9f6 [2025-03-17 07:23:39,228 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a155800d/87786612c1dd44b3b5b5f7cb02bb0b6d [2025-03-17 07:23:39,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 07:23:39,231 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 07:23:39,233 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 07:23:39,233 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 07:23:39,236 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 07:23:39,237 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:23:39" (1/1) ... [2025-03-17 07:23:39,237 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f99ca09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:23:39, skipping insertion in model container [2025-03-17 07:23:39,238 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:23:39" (1/1) ... [2025-03-17 07:23:39,337 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 07:23:39,655 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] [2025-03-17 07:23:39,670 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] [2025-03-17 07:23:40,484 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:40,485 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:40,485 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:40,485 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:40,486 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:40,495 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:40,498 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:40,499 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:40,499 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:41,019 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:41,020 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:41,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:23:41,241 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 07:23:41,256 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] [2025-03-17 07:23:41,257 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] [2025-03-17 07:23:41,299 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:41,300 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:41,301 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:41,301 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:41,301 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:41,306 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:41,307 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:41,309 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:41,309 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:41,408 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8237] [2025-03-17 07:23:41,410 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:41,410 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:41,433 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8957-8968] [2025-03-17 07:23:41,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:23:41,630 INFO L204 MainTranslator]: Completed translation [2025-03-17 07:23:41,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:23:41 WrapperNode [2025-03-17 07:23:41,632 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 07:23:41,633 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 07:23:41,633 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 07:23:41,633 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 07:23:41,639 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:23:41" (1/1) ... [2025-03-17 07:23:41,715 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:23:41" (1/1) ... [2025-03-17 07:23:41,788 INFO L138 Inliner]: procedures = 684, calls = 2931, calls flagged for inlining = 60, calls inlined = 11, statements flattened = 1229 [2025-03-17 07:23:41,789 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 07:23:41,791 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 07:23:41,791 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 07:23:41,792 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 07:23:41,799 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:23:41" (1/1) ... [2025-03-17 07:23:41,800 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:23:41" (1/1) ... [2025-03-17 07:23:41,807 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:23:41" (1/1) ... [2025-03-17 07:23:41,915 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]. [2025-03-17 07:23:41,915 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:23:41" (1/1) ... [2025-03-17 07:23:41,915 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:23:41" (1/1) ... [2025-03-17 07:23:42,002 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:23:41" (1/1) ... [2025-03-17 07:23:42,013 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:23:41" (1/1) ... [2025-03-17 07:23:42,029 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:23:41" (1/1) ... [2025-03-17 07:23:42,038 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:23:41" (1/1) ... [2025-03-17 07:23:42,058 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 07:23:42,059 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 07:23:42,059 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 07:23:42,059 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 07:23:42,060 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:23:41" (1/1) ... [2025-03-17 07:23:42,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:23:42,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:23:42,106 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 07:23:42,116 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 07:23:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-17 07:23:42,138 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-17 07:23:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 07:23:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-17 07:23:42,138 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-17 07:23:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr [2025-03-17 07:23:42,138 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr [2025-03-17 07:23:42,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-17 07:23:42,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-17 07:23:42,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-17 07:23:42,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-17 07:23:42,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-17 07:23:42,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 07:23:42,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 07:23:42,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 07:23:42,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 07:23:42,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-17 07:23:42,140 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-17 07:23:42,140 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-17 07:23:42,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 07:23:42,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 07:23:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 07:23:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 07:23:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 07:23:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 07:23:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 07:23:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 07:23:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-17 07:23:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_priv_xlate_order [2025-03-17 07:23:42,141 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_priv_xlate_order [2025-03-17 07:23:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 07:23:42,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 07:23:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-17 07:23:42,141 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-17 07:23:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-17 07:23:42,141 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-17 07:23:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-17 07:23:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-17 07:23:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-17 07:23:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-17 07:23:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-17 07:23:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr [2025-03-17 07:23:42,142 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr [2025-03-17 07:23:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 07:23:42,142 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 07:23:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_from_empty_array [2025-03-17 07:23:42,142 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_from_empty_array [2025-03-17 07:23:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 07:23:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 07:23:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 07:23:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 07:23:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-17 07:23:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-17 07:23:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-17 07:23:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-17 07:23:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-17 07:23:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-17 07:23:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-17 07:23:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_check_atomic_ptr [2025-03-17 07:23:42,142 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_check_atomic_ptr [2025-03-17 07:23:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure is_front_valid_state [2025-03-17 07:23:42,142 INFO L138 BoogieDeclarations]: Found implementation of procedure is_front_valid_state [2025-03-17 07:23:42,142 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-17 07:23:42,142 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-17 07:23:42,145 INFO L130 BoogieDeclarations]: Found specification of procedure is_ends_valid_state [2025-03-17 07:23:42,145 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ends_valid_state [2025-03-17 07:23:42,145 INFO L130 BoogieDeclarations]: Found specification of procedure s_buf_belongs_to_pool [2025-03-17 07:23:42,145 INFO L138 BoogieDeclarations]: Found implementation of procedure s_buf_belongs_to_pool [2025-03-17 07:23:42,145 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-17 07:23:42,145 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-17 07:23:42,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 07:23:42,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 07:23:42,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 07:23:42,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 07:23:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-17 07:23:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr_explicit [2025-03-17 07:23:42,146 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr_explicit [2025-03-17 07:23:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_is_valid [2025-03-17 07:23:42,146 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_is_valid [2025-03-17 07:23:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure is_middle_valid_state [2025-03-17 07:23:42,146 INFO L138 BoogieDeclarations]: Found implementation of procedure is_middle_valid_state [2025-03-17 07:23:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr_explicit [2025-03-17 07:23:42,146 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr_explicit [2025-03-17 07:23:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 07:23:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 07:23:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 07:23:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 07:23:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-17 07:23:42,475 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 07:23:42,477 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 07:23:42,519 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-17 07:23:42,557 INFO L1322 $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; [2025-03-17 07:23:42,559 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-17 07:23:42,560 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-17 07:23:42,610 INFO L1322 $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; [2025-03-17 07:23:42,633 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L5781: havoc #t~ret422;havoc #t~mem421.base, #t~mem421.offset; [2025-03-17 07:23:42,675 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-17 07:23:42,685 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6032: havoc #t~mem452.base, #t~mem452.offset;havoc #t~mem453.base, #t~mem453.offset;havoc #t~short454; [2025-03-17 07:23:42,696 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L9182: havoc #t~mem1357.base, #t~mem1357.offset; [2025-03-17 07:23:42,711 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L5612: havoc #t~ret408.base, #t~ret408.offset; [2025-03-17 07:23:42,749 INFO L1322 $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; [2025-03-17 07:23:42,782 INFO L1322 $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; [2025-03-17 07:23:42,796 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L9193: havoc #t~mem1360.base, #t~mem1360.offset; [2025-03-17 07:23:50,020 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8759: havoc aws_ring_buffer_acquire_up_to_#t~ret1323#1; [2025-03-17 07:23:50,020 INFO L1322 $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; [2025-03-17 07:23:50,020 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8671: havoc aws_ring_buffer_acquire_up_to_#t~ret1273#1; [2025-03-17 07:23:50,020 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8688: havoc aws_ring_buffer_acquire_up_to_#t~ret1282#1; [2025-03-17 07:23:50,247 INFO L? ?]: Removed 215 outVars from TransFormulas that were not future-live. [2025-03-17 07:23:50,248 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 07:23:50,285 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 07:23:50,286 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 07:23:50,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:23:50 BoogieIcfgContainer [2025-03-17 07:23:50,288 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 07:23:50,291 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 07:23:50,291 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 07:23:50,299 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 07:23:50,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:23:39" (1/3) ... [2025-03-17 07:23:50,303 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f80d258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:23:50, skipping insertion in model container [2025-03-17 07:23:50,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:23:41" (2/3) ... [2025-03-17 07:23:50,303 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f80d258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:23:50, skipping insertion in model container [2025-03-17 07:23:50,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:23:50" (3/3) ... [2025-03-17 07:23:50,304 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_ring_buffer_acquire_up_to_harness_negated.i [2025-03-17 07:23:50,324 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 07:23:50,339 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_ring_buffer_acquire_up_to_harness_negated.i that has 22 procedures, 419 locations, 1 initial locations, 2 loop locations, and 4 error locations. [2025-03-17 07:23:50,398 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 07:23:50,408 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;@69f0b438, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 07:23:50,409 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-17 07:23:50,413 INFO L276 IsEmpty]: Start isEmpty. Operand has 419 states, 234 states have (on average 1.2222222222222223) internal successors, (286), 238 states have internal predecessors, (286), 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) [2025-03-17 07:23:50,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-03-17 07:23:50,419 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:23:50,419 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] [2025-03-17 07:23:50,420 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)] === [2025-03-17 07:23:50,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:23:50,424 INFO L85 PathProgramCache]: Analyzing trace with hash 955258873, now seen corresponding path program 1 times [2025-03-17 07:23:50,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:23:50,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250878891] [2025-03-17 07:23:50,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:23:50,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:25:00,094 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-17 07:25:00,685 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-17 07:25:00,685 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:25:00,685 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:25:01,703 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-03-17 07:25:01,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:25:01,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250878891] [2025-03-17 07:25:01,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250878891] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 07:25:01,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063449420] [2025-03-17 07:25:01,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:25:01,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 07:25:01,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:25:01,708 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 07:25:01,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process