./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.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_clean_up_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 03a4ecb9d97ec40f0475820d11aa51b1de64332112f31fd921efefefc289335b --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 18:16:48,329 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 18:16:48,393 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 18:16:48,399 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 18:16:48,403 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 18:16:48,426 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 18:16:48,428 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 18:16:48,428 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 18:16:48,428 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 18:16:48,429 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 18:16:48,429 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 18:16:48,429 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 18:16:48,430 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 18:16:48,430 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 18:16:48,430 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 18:16:48,430 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 18:16:48,431 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 18:16:48,431 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 18:16:48,431 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 18:16:48,431 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 18:16:48,431 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 18:16:48,431 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 18:16:48,431 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 18:16:48,431 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 18:16:48,431 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 18:16:48,431 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 18:16:48,431 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 18:16:48,431 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 18:16:48,432 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 18:16:48,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:16:48,432 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 18:16:48,432 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 18:16:48,432 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 18:16:48,432 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 18:16:48,432 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 18:16:48,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 18:16:48,432 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 18:16:48,433 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 18:16:48,433 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 18:16:48,433 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 18:16:48,433 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 -> 03a4ecb9d97ec40f0475820d11aa51b1de64332112f31fd921efefefc289335b [2025-03-08 18:16:48,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 18:16:48,691 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 18:16:48,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 18:16:48,694 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 18:16:48,694 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 18:16:48,697 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i [2025-03-08 18:16:49,906 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a6bd2c0d/2b0e324c762c4f9ea91f243c4b641787/FLAGd8d8102bf [2025-03-08 18:16:50,356 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 18:16:50,356 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i [2025-03-08 18:16:50,393 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a6bd2c0d/2b0e324c762c4f9ea91f243c4b641787/FLAGd8d8102bf [2025-03-08 18:16:50,410 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a6bd2c0d/2b0e324c762c4f9ea91f243c4b641787 [2025-03-08 18:16:50,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 18:16:50,415 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 18:16:50,417 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 18:16:50,417 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 18:16:50,420 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 18:16:50,421 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:16:50" (1/1) ... [2025-03-08 18:16:50,423 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17ee4aa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:50, skipping insertion in model container [2025-03-08 18:16:50,423 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:16:50" (1/1) ... [2025-03-08 18:16:50,497 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 18:16:50,728 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_clean_up_harness.i[4498,4511] [2025-03-08 18:16:50,737 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_clean_up_harness.i[4558,4571] [2025-03-08 18:16:51,799 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:51,803 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:51,804 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:51,804 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:51,805 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:51,821 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:51,822 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:51,825 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:51,826 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:52,692 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:52,693 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:52,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:16:52,857 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 18:16:52,871 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_clean_up_harness.i[4498,4511] [2025-03-08 18:16:52,872 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_clean_up_harness.i[4558,4571] [2025-03-08 18:16:52,906 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:52,907 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:52,907 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:52,908 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:52,908 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:52,914 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:52,915 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:52,916 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:52,916 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:53,012 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2025-03-08 18:16:53,014 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:53,014 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:53,037 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8995-9006] [2025-03-08 18:16:53,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:16:53,262 INFO L204 MainTranslator]: Completed translation [2025-03-08 18:16:53,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:53 WrapperNode [2025-03-08 18:16:53,264 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 18:16:53,265 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 18:16:53,265 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 18:16:53,265 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 18:16:53,269 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:53" (1/1) ... [2025-03-08 18:16:53,339 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:53" (1/1) ... [2025-03-08 18:16:53,405 INFO L138 Inliner]: procedures = 680, calls = 2872, calls flagged for inlining = 56, calls inlined = 6, statements flattened = 816 [2025-03-08 18:16:53,406 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 18:16:53,406 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 18:16:53,406 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 18:16:53,406 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 18:16:53,414 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:53" (1/1) ... [2025-03-08 18:16:53,414 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:53" (1/1) ... [2025-03-08 18:16:53,421 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:53" (1/1) ... [2025-03-08 18:16:53,484 INFO L175 MemorySlicer]: Split 531 memory accesses to 5 slices as follows [2, 257, 238, 6, 28]. 48 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [2, 0, 6, 5, 5]. The 494 writes are split as follows [0, 257, 232, 0, 5]. [2025-03-08 18:16:53,485 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:53" (1/1) ... [2025-03-08 18:16:53,485 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:53" (1/1) ... [2025-03-08 18:16:53,522 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:53" (1/1) ... [2025-03-08 18:16:53,527 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:53" (1/1) ... [2025-03-08 18:16:53,535 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:53" (1/1) ... [2025-03-08 18:16:53,542 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:53" (1/1) ... [2025-03-08 18:16:53,554 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 18:16:53,555 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 18:16:53,556 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 18:16:53,556 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 18:16:53,557 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:53" (1/1) ... [2025-03-08 18:16:53,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:16:53,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:16:53,587 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 18:16:53,592 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 18:16:53,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 18:16:53,609 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr [2025-03-08 18:16:53,609 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr [2025-03-08 18:16:53,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 18:16:53,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 18:16:53,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 18:16:53,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 18:16:53,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 18:16:53,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 18:16:53,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 18:16:53,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 18:16:53,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 18:16:53,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 18:16:53,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 18:16:53,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 18:16:53,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 18:16:53,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 18:16:53,610 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_priv_xlate_order [2025-03-08 18:16:53,610 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_priv_xlate_order [2025-03-08 18:16:53,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 18:16:53,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 18:16:53,610 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 18:16:53,610 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 18:16:53,610 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-08 18:16:53,610 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-08 18:16:53,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 18:16:53,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 18:16:53,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 18:16:53,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 18:16:53,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 18:16:53,610 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2025-03-08 18:16:53,610 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2025-03-08 18:16:53,610 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr [2025-03-08 18:16:53,610 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr [2025-03-08 18:16:53,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-08 18:16:53,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-08 18:16:53,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-03-08 18:16:53,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2025-03-08 18:16:53,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2025-03-08 18:16:53,610 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-08 18:16:53,610 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-08 18:16:53,610 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-03-08 18:16:53,611 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2025-03-08 18:16:53,611 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2025-03-08 18:16:53,611 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 18:16:53,611 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 18:16:53,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 18:16:53,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 18:16:53,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 18:16:53,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 18:16:53,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 18:16:53,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 18:16:53,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 18:16:53,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 18:16:53,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 18:16:53,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 18:16:53,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 18:16:53,612 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_check_atomic_ptr [2025-03-08 18:16:53,612 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_check_atomic_ptr [2025-03-08 18:16:53,612 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-08 18:16:53,612 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-08 18:16:53,612 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-08 18:16:53,612 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-08 18:16:53,613 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr_explicit [2025-03-08 18:16:53,613 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr_explicit [2025-03-08 18:16:53,613 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_is_valid [2025-03-08 18:16:53,613 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_is_valid [2025-03-08 18:16:53,613 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr_explicit [2025-03-08 18:16:53,613 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr_explicit [2025-03-08 18:16:53,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 18:16:53,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 18:16:53,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 18:16:53,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 18:16:53,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 18:16:53,872 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 18:16:53,874 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 18:16:53,916 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-08 18:16:53,921 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-08 18:16:53,924 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-08 18:16:53,993 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5793: havoc #t~ret422;havoc #t~mem421.base, #t~mem421.offset; [2025-03-08 18:16:54,043 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6044: havoc #t~mem452.base, #t~mem452.offset;havoc #t~mem453.base, #t~mem453.offset;havoc #t~short454; [2025-03-08 18:16:54,119 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5624: havoc #t~ret408.base, #t~ret408.offset; [2025-03-08 18:16:54,176 INFO L1307 $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; [2025-03-08 18:17:00,779 INFO L? ?]: Removed 89 outVars from TransFormulas that were not future-live. [2025-03-08 18:17:00,780 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 18:17:00,794 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 18:17:00,794 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 18:17:00,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:17:00 BoogieIcfgContainer [2025-03-08 18:17:00,795 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 18:17:00,796 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 18:17:00,796 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 18:17:00,800 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 18:17:00,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 06:16:50" (1/3) ... [2025-03-08 18:17:00,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c474c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:17:00, skipping insertion in model container [2025-03-08 18:17:00,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:53" (2/3) ... [2025-03-08 18:17:00,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c474c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:17:00, skipping insertion in model container [2025-03-08 18:17:00,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:17:00" (3/3) ... [2025-03-08 18:17:00,801 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_ring_buffer_clean_up_harness.i [2025-03-08 18:17:00,811 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 18:17:00,812 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_ring_buffer_clean_up_harness.i that has 20 procedures, 167 locations, 1 initial locations, 8 loop locations, and 4 error locations. [2025-03-08 18:17:00,858 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 18:17:00,868 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;@3310a23e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 18:17:00,868 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-08 18:17:00,872 INFO L276 IsEmpty]: Start isEmpty. Operand has 151 states, 99 states have (on average 1.2525252525252526) internal successors, (124), 102 states have internal predecessors, (124), 33 states have call successors, (33), 15 states have call predecessors, (33), 15 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2025-03-08 18:17:00,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2025-03-08 18:17:00,876 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:17:00,877 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-08 18:17:00,877 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting aws_atomic_store_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, aws_atomic_load_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 1 more)] === [2025-03-08 18:17:00,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:17:00,881 INFO L85 PathProgramCache]: Analyzing trace with hash 2134533184, now seen corresponding path program 1 times [2025-03-08 18:17:00,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:17:00,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371295356] [2025-03-08 18:17:00,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:17:00,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:18:22,832 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-03-08 18:18:23,310 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-03-08 18:18:23,310 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:18:23,310 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:18:23,985 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-03-08 18:18:23,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:18:23,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371295356] [2025-03-08 18:18:23,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371295356] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:18:23,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266817896] [2025-03-08 18:18:23,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:18:23,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:18:23,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:18:23,991 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 18:18:24,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process