./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_ring_buffer_release_harness.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_release_harness.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 772b15d8153190f847bc1df122e04df0adc1c78736cf51ee691c4d43e8a4ef80 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 07:24:13,007 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 07:24:13,057 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-17 07:24:13,062 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 07:24:13,065 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 07:24:13,080 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 07:24:13,081 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 07:24:13,081 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 07:24:13,081 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 07:24:13,081 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 07:24:13,081 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 07:24:13,081 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 07:24:13,082 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 07:24:13,082 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 07:24:13,082 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 07:24:13,082 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 07:24:13,082 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 07:24:13,082 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 07:24:13,082 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 07:24:13,082 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 07:24:13,082 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 07:24:13,082 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 07:24:13,082 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 07:24:13,083 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 07:24:13,083 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 07:24:13,083 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 07:24:13,083 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 07:24:13,083 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 07:24:13,083 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 07:24:13,083 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:24:13,083 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 07:24:13,083 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 07:24:13,083 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 07:24:13,083 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 07:24:13,083 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 07:24:13,083 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 07:24:13,083 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 07:24:13,083 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 07:24:13,083 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 07:24:13,083 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 07:24:13,083 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 -> 772b15d8153190f847bc1df122e04df0adc1c78736cf51ee691c4d43e8a4ef80 [2025-03-17 07:24:13,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 07:24:13,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 07:24:13,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 07:24:13,330 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 07:24:13,330 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 07:24:13,331 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_ring_buffer_release_harness.i [2025-03-17 07:24:14,544 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/488276966/1c4e0d029e5649bfbd7015cf97a411a1/FLAG13712be56 [2025-03-17 07:24:14,994 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 07:24:14,996 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_ring_buffer_release_harness.i [2025-03-17 07:24:15,030 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/488276966/1c4e0d029e5649bfbd7015cf97a411a1/FLAG13712be56 [2025-03-17 07:24:15,105 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/488276966/1c4e0d029e5649bfbd7015cf97a411a1 [2025-03-17 07:24:15,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 07:24:15,109 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 07:24:15,110 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 07:24:15,110 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 07:24:15,113 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 07:24:15,113 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:24:15" (1/1) ... [2025-03-17 07:24:15,114 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fd245f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:15, skipping insertion in model container [2025-03-17 07:24:15,114 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:24:15" (1/1) ... [2025-03-17 07:24:15,188 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 07:24:15,432 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.i[4497,4510] [2025-03-17 07:24:15,442 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.i[4557,4570] [2025-03-17 07:24:16,195 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:16,195 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:16,196 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:16,196 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:16,197 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:16,206 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:16,207 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:16,208 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:16,209 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:16,705 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:16,706 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:16,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:24:16,831 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 07:24:16,840 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.i[4497,4510] [2025-03-17 07:24:16,841 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.i[4557,4570] [2025-03-17 07:24:16,899 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:16,899 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:16,900 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:16,900 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:16,901 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:16,906 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:16,906 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:16,908 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:16,908 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:17,013 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2025-03-17 07:24:17,015 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:17,016 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:17,041 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8995-9006] [2025-03-17 07:24:17,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:24:17,235 INFO L204 MainTranslator]: Completed translation [2025-03-17 07:24:17,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:17 WrapperNode [2025-03-17 07:24:17,237 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 07:24:17,238 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 07:24:17,238 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 07:24:17,238 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 07:24:17,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:17" (1/1) ... [2025-03-17 07:24:17,294 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:17" (1/1) ... [2025-03-17 07:24:17,361 INFO L138 Inliner]: procedures = 684, calls = 2948, calls flagged for inlining = 59, calls inlined = 9, statements flattened = 1030 [2025-03-17 07:24:17,362 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 07:24:17,362 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 07:24:17,362 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 07:24:17,363 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 07:24:17,369 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:17" (1/1) ... [2025-03-17 07:24:17,369 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:17" (1/1) ... [2025-03-17 07:24:17,375 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:17" (1/1) ... [2025-03-17 07:24:17,453 INFO L175 MemorySlicer]: Split 593 memory accesses to 6 slices as follows [2, 257, 243, 36, 6, 49]. 43 percent of accesses are in the largest equivalence class. The 31 initializations are split as follows [2, 0, 11, 4, 4, 10]. The 496 writes are split as follows [0, 257, 232, 3, 0, 4]. [2025-03-17 07:24:17,454 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:17" (1/1) ... [2025-03-17 07:24:17,454 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:17" (1/1) ... [2025-03-17 07:24:17,498 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:17" (1/1) ... [2025-03-17 07:24:17,501 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:17" (1/1) ... [2025-03-17 07:24:17,507 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:17" (1/1) ... [2025-03-17 07:24:17,510 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:17" (1/1) ... [2025-03-17 07:24:17,519 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 07:24:17,520 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 07:24:17,521 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 07:24:17,521 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 07:24:17,521 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:17" (1/1) ... [2025-03-17 07:24:17,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:24:17,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:24:17,553 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 07:24:17,555 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 07:24:17,573 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-17 07:24:17,574 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-17 07:24:17,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 07:24:17,574 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-17 07:24:17,574 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-17 07:24:17,574 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr [2025-03-17 07:24:17,574 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr [2025-03-17 07:24:17,574 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member_in_range [2025-03-17 07:24:17,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member_in_range [2025-03-17 07:24:17,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-17 07:24:17,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-17 07:24:17,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-17 07:24:17,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-17 07:24:17,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-17 07:24:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-17 07:24:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 07:24:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 07:24:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 07:24:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 07:24:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-17 07:24:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-17 07:24:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure is_empty_state [2025-03-17 07:24:17,576 INFO L138 BoogieDeclarations]: Found implementation of procedure is_empty_state [2025-03-17 07:24:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 07:24:17,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 07:24:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 07:24:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 07:24:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 07:24:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 07:24:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 07:24:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 07:24:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-17 07:24:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-17 07:24:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_priv_xlate_order [2025-03-17 07:24:17,576 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_priv_xlate_order [2025-03-17 07:24:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 07:24:17,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 07:24:17,577 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-17 07:24:17,577 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-17 07:24:17,577 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-17 07:24:17,577 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-17 07:24:17,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-17 07:24:17,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-17 07:24:17,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-17 07:24:17,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-17 07:24:17,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-17 07:24:17,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-17 07:24:17,577 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr [2025-03-17 07:24:17,577 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr [2025-03-17 07:24:17,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-17 07:24:17,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-17 07:24:17,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-03-17 07:24:17,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2025-03-17 07:24:17,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2025-03-17 07:24:17,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2025-03-17 07:24:17,577 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-17 07:24:17,577 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-17 07:24:17,577 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-03-17 07:24:17,577 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2025-03-17 07:24:17,577 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2025-03-17 07:24:17,577 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2025-03-17 07:24:17,577 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 07:24:17,577 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 07:24:17,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 07:24:17,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 07:24:17,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 07:24:17,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 07:24:17,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-17 07:24:17,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-17 07:24:17,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-17 07:24:17,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-17 07:24:17,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-17 07:24:17,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-17 07:24:17,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-17 07:24:17,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-17 07:24:17,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-17 07:24:17,580 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_check_atomic_ptr [2025-03-17 07:24:17,580 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_check_atomic_ptr [2025-03-17 07:24:17,580 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-17 07:24:17,580 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-17 07:24:17,580 INFO L130 BoogieDeclarations]: Found specification of procedure is_ends_valid_state [2025-03-17 07:24:17,580 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ends_valid_state [2025-03-17 07:24:17,580 INFO L130 BoogieDeclarations]: Found specification of procedure s_buf_belongs_to_pool [2025-03-17 07:24:17,580 INFO L138 BoogieDeclarations]: Found implementation of procedure s_buf_belongs_to_pool [2025-03-17 07:24:17,580 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-17 07:24:17,580 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-17 07:24:17,580 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr_explicit [2025-03-17 07:24:17,580 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr_explicit [2025-03-17 07:24:17,580 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_is_valid [2025-03-17 07:24:17,580 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_is_valid [2025-03-17 07:24:17,580 INFO L130 BoogieDeclarations]: Found specification of procedure is_middle_valid_state [2025-03-17 07:24:17,580 INFO L138 BoogieDeclarations]: Found implementation of procedure is_middle_valid_state [2025-03-17 07:24:17,580 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr_explicit [2025-03-17 07:24:17,580 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr_explicit [2025-03-17 07:24:17,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 07:24:17,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 07:24:17,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 07:24:17,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 07:24:17,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-17 07:24:17,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-17 07:24:17,854 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 07:24:17,856 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 07:24:17,898 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-17 07:24:17,940 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8807: 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; [2025-03-17 07:24:17,942 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-17 07:24:17,943 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-17 07:24:18,018 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L7377: havoc #t~mem678;havoc #t~mem679;havoc #t~short680;havoc #t~mem681.base, #t~mem681.offset;havoc #t~short682;havoc #t~mem683;havoc #t~mem684;havoc #t~mem685;havoc #t~short686;havoc #t~mem687;havoc #t~mem688.base, #t~mem688.offset;havoc #t~short689;havoc #t~short690;havoc #t~short691;havoc #t~short692; [2025-03-17 07:24:18,047 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L5793: havoc #t~ret422;havoc #t~mem421.base, #t~mem421.offset; [2025-03-17 07:24:18,054 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-17 07:24:18,077 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6044: havoc #t~mem452.base, #t~mem452.offset;havoc #t~mem453.base, #t~mem453.offset;havoc #t~short454; [2025-03-17 07:24:18,132 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L5624: havoc #t~ret408.base, #t~ret408.offset; [2025-03-17 07:24:18,181 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6077: havoc #t~mem464.base, #t~mem464.offset;havoc #t~mem465.base, #t~mem465.offset;havoc #t~mem466.base, #t~mem466.offset;havoc #t~short467;havoc #t~short468;havoc #t~mem469.base, #t~mem469.offset;havoc #t~short470; [2025-03-17 07:24:18,187 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L9231: havoc #t~mem1365.base, #t~mem1365.offset; [2025-03-17 07:24:25,133 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L9220: havoc is_front_valid_state_#t~mem1362#1.base, is_front_valid_state_#t~mem1362#1.offset; [2025-03-17 07:24:25,265 INFO L? ?]: Removed 211 outVars from TransFormulas that were not future-live. [2025-03-17 07:24:25,266 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 07:24:25,285 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 07:24:25,285 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 07:24:25,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:24:25 BoogieIcfgContainer [2025-03-17 07:24:25,285 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 07:24:25,291 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 07:24:25,291 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 07:24:25,294 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 07:24:25,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:24:15" (1/3) ... [2025-03-17 07:24:25,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c0673f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:24:25, skipping insertion in model container [2025-03-17 07:24:25,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:17" (2/3) ... [2025-03-17 07:24:25,296 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c0673f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:24:25, skipping insertion in model container [2025-03-17 07:24:25,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:24:25" (3/3) ... [2025-03-17 07:24:25,297 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_ring_buffer_release_harness.i [2025-03-17 07:24:25,308 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 07:24:25,309 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_ring_buffer_release_harness.i that has 27 procedures, 332 locations, 1 initial locations, 9 loop locations, and 4 error locations. [2025-03-17 07:24:25,355 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 07:24:25,364 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;@6757c2ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 07:24:25,365 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-17 07:24:25,369 INFO L276 IsEmpty]: Start isEmpty. Operand has 312 states, 197 states have (on average 1.2436548223350254) internal successors, (245), 201 states have internal predecessors, (245), 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) [2025-03-17 07:24:25,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-03-17 07:24:25,375 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:24:25,375 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] [2025-03-17 07:24:25,376 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 07:24:25,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:24:25,380 INFO L85 PathProgramCache]: Analyzing trace with hash -630399296, now seen corresponding path program 1 times [2025-03-17 07:24:25,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:24:25,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158327589] [2025-03-17 07:24:25,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:24:25,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:25:33,254 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-03-17 07:25:33,790 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-03-17 07:25:33,791 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:25:33,791 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:25:36,524 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-17 07:25:36,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:25:36,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158327589] [2025-03-17 07:25:36,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158327589] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:25:36,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 07:25:36,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 07:25:36,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018972951] [2025-03-17 07:25:36,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:25:36,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 07:25:36,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:25:36,551 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 07:25:36,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 07:25:36,556 INFO L87 Difference]: Start difference. First operand has 312 states, 197 states have (on average 1.2436548223350254) internal successors, (245), 201 states have internal predecessors, (245), 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) Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-17 07:25:37,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:25:37,255 INFO L93 Difference]: Finished difference Result 621 states and 920 transitions. [2025-03-17 07:25:37,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 07:25:37,257 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 65 [2025-03-17 07:25:37,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:25:37,266 INFO L225 Difference]: With dead ends: 621 [2025-03-17 07:25:37,266 INFO L226 Difference]: Without dead ends: 321 [2025-03-17 07:25:37,273 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-03-17 07:25:37,275 INFO L435 NwaCegarLoop]: 409 mSDtfsCounter, 15 mSDsluCounter, 1615 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2024 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 07:25:37,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2024 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 07:25:37,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2025-03-17 07:25:37,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2025-03-17 07:25:37,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 201 states have (on average 1.2039800995024876) internal successors, (242), 207 states have internal predecessors, (242), 91 states have call successors, (91), 22 states have call predecessors, (91), 23 states have return successors, (92), 90 states have call predecessors, (92), 90 states have call successors, (92) [2025-03-17 07:25:37,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 425 transitions. [2025-03-17 07:25:37,336 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 425 transitions. Word has length 65 [2025-03-17 07:25:37,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:25:37,337 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 425 transitions. [2025-03-17 07:25:37,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-17 07:25:37,337 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 425 transitions. [2025-03-17 07:25:37,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-03-17 07:25:37,339 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:25:37,339 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] [2025-03-17 07:25:37,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 07:25:37,339 INFO L396 AbstractCegarLoop]: === Iteration 2 === 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 07:25:37,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:25:37,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1118733540, now seen corresponding path program 1 times [2025-03-17 07:25:37,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:25:37,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380334018] [2025-03-17 07:25:37,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:25:37,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms