./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_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_acquire_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 5d24b296895bb1aad8d34c2d7efdb39aad00aa64487bccb479278d36c5a9a207 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 18:16:20,152 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 18:16:20,215 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 18:16:20,221 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 18:16:20,221 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 18:16:20,245 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 18:16:20,246 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 18:16:20,246 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 18:16:20,246 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 18:16:20,246 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 18:16:20,246 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 18:16:20,246 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 18:16:20,246 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 18:16:20,246 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 18:16:20,247 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 18:16:20,248 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 18:16:20,248 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 18:16:20,248 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 18:16:20,248 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 18:16:20,248 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 18:16:20,248 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 18:16:20,249 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 18:16:20,249 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 18:16:20,249 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 18:16:20,249 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 18:16:20,249 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 18:16:20,249 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 18:16:20,249 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 18:16:20,249 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 18:16:20,249 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:16:20,250 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 18:16:20,250 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 18:16:20,250 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 18:16:20,250 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 18:16:20,250 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 18:16:20,250 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 18:16:20,250 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 18:16:20,251 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 18:16:20,251 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 18:16:20,251 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 18:16:20,251 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 -> 5d24b296895bb1aad8d34c2d7efdb39aad00aa64487bccb479278d36c5a9a207 [2025-03-08 18:16:20,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 18:16:20,479 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 18:16:20,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 18:16:20,481 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 18:16:20,482 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 18:16:20,483 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_harness.i [2025-03-08 18:16:21,666 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29ffbc826/9eaa3a2e27de4650a164ab35cc70d70d/FLAGca2434699 [2025-03-08 18:16:22,096 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 18:16:22,096 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_harness.i [2025-03-08 18:16:22,135 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29ffbc826/9eaa3a2e27de4650a164ab35cc70d70d/FLAGca2434699 [2025-03-08 18:16:22,147 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29ffbc826/9eaa3a2e27de4650a164ab35cc70d70d [2025-03-08 18:16:22,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 18:16:22,150 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 18:16:22,151 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 18:16:22,151 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 18:16:22,155 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 18:16:22,155 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:16:22" (1/1) ... [2025-03-08 18:16:22,156 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53059391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:22, skipping insertion in model container [2025-03-08 18:16:22,156 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:16:22" (1/1) ... [2025-03-08 18:16:22,228 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 18:16:22,463 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_harness.i[4497,4510] [2025-03-08 18:16:22,472 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_harness.i[4557,4570] [2025-03-08 18:16:23,408 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:23,408 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:23,408 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:23,409 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:23,411 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:23,420 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:23,420 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:23,422 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:23,422 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:23,893 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:23,893 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:24,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:16:24,072 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 18:16:24,087 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_harness.i[4497,4510] [2025-03-08 18:16:24,087 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_harness.i[4557,4570] [2025-03-08 18:16:24,125 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:24,125 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:24,125 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:24,126 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:24,127 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:24,132 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:24,134 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:24,134 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:24,135 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:24,234 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2025-03-08 18:16:24,236 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:24,237 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:24,259 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8989-9000] [2025-03-08 18:16:24,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:16:24,457 INFO L204 MainTranslator]: Completed translation [2025-03-08 18:16:24,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:24 WrapperNode [2025-03-08 18:16:24,459 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 18:16:24,460 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 18:16:24,460 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 18:16:24,460 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 18:16:24,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:24" (1/1) ... [2025-03-08 18:16:24,537 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:24" (1/1) ... [2025-03-08 18:16:24,612 INFO L138 Inliner]: procedures = 684, calls = 2943, calls flagged for inlining = 61, calls inlined = 12, statements flattened = 1207 [2025-03-08 18:16:24,612 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 18:16:24,613 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 18:16:24,613 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 18:16:24,613 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 18:16:24,622 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:24" (1/1) ... [2025-03-08 18:16:24,623 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:24" (1/1) ... [2025-03-08 18:16:24,631 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:24" (1/1) ... [2025-03-08 18:16:24,715 INFO L175 MemorySlicer]: Split 617 memory accesses to 5 slices as follows [2, 257, 47, 68, 243]. 42 percent of accesses are in the largest equivalence class. The 27 initializations are split as follows [2, 0, 4, 10, 11]. The 515 writes are split as follows [0, 257, 22, 4, 232]. [2025-03-08 18:16:24,718 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:24" (1/1) ... [2025-03-08 18:16:24,718 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:24" (1/1) ... [2025-03-08 18:16:24,759 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:24" (1/1) ... [2025-03-08 18:16:24,765 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:24" (1/1) ... [2025-03-08 18:16:24,774 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:24" (1/1) ... [2025-03-08 18:16:24,781 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:24" (1/1) ... [2025-03-08 18:16:24,790 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 18:16:24,791 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 18:16:24,791 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 18:16:24,792 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 18:16:24,792 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:24" (1/1) ... [2025-03-08 18:16:24,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:16:24,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:16:24,824 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 18:16:24,826 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 18:16:24,844 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-08 18:16:24,844 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-08 18:16:24,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 18:16:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-08 18:16:24,845 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-08 18:16:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr [2025-03-08 18:16:24,845 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr [2025-03-08 18:16:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 18:16:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 18:16:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 18:16:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 18:16:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 18:16:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 18:16:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 18:16:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 18:16:24,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 18:16:24,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 18:16:24,846 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-08 18:16:24,846 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-08 18:16:24,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 18:16:24,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 18:16:24,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 18:16:24,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 18:16:24,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 18:16:24,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 18:16:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 18:16:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 18:16:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 18:16:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_priv_xlate_order [2025-03-08 18:16:24,847 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_priv_xlate_order [2025-03-08 18:16:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 18:16:24,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 18:16:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 18:16:24,847 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 18:16:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-08 18:16:24,847 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-08 18:16:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 18:16:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 18:16:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 18:16:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 18:16:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 18:16:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr [2025-03-08 18:16:24,847 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr [2025-03-08 18:16:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 18:16:24,847 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 18:16:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_from_empty_array [2025-03-08 18:16:24,847 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_from_empty_array [2025-03-08 18:16:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 18:16:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 18:16:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 18:16:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 18:16:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 18:16:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 18:16:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 18:16:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 18:16:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 18:16:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 18:16:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 18:16:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_check_atomic_ptr [2025-03-08 18:16:24,848 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_check_atomic_ptr [2025-03-08 18:16:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure is_front_valid_state [2025-03-08 18:16:24,848 INFO L138 BoogieDeclarations]: Found implementation of procedure is_front_valid_state [2025-03-08 18:16:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-08 18:16:24,848 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-08 18:16:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure is_ends_valid_state [2025-03-08 18:16:24,848 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ends_valid_state [2025-03-08 18:16:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure s_buf_belongs_to_pool [2025-03-08 18:16:24,848 INFO L138 BoogieDeclarations]: Found implementation of procedure s_buf_belongs_to_pool [2025-03-08 18:16:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-08 18:16:24,848 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-08 18:16:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 18:16:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 18:16:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 18:16:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 18:16:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 18:16:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr_explicit [2025-03-08 18:16:24,848 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr_explicit [2025-03-08 18:16:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_is_valid [2025-03-08 18:16:24,848 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_is_valid [2025-03-08 18:16:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure is_middle_valid_state [2025-03-08 18:16:24,848 INFO L138 BoogieDeclarations]: Found implementation of procedure is_middle_valid_state [2025-03-08 18:16:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr_explicit [2025-03-08 18:16:24,848 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr_explicit [2025-03-08 18:16:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 18:16:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 18:16:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 18:16:24,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 18:16:24,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 18:16:25,154 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 18:16:25,156 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 18:16:25,184 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-08 18:16:25,222 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8801: havoc #t~mem1324.base, #t~mem1324.offset;havoc #t~mem1325.base, #t~mem1325.offset;havoc #t~short1326;havoc #t~mem1327.base, #t~mem1327.offset;havoc #t~short1328;havoc #t~mem1329.base, #t~mem1329.offset;havoc #t~mem1330.base, #t~mem1330.offset;havoc #t~short1331;havoc #t~mem1332.base, #t~mem1332.offset;havoc #t~mem1333;havoc #t~mem1334.base, #t~mem1334.offset;havoc #t~short1335; [2025-03-08 18:16:25,226 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-08 18:16:25,228 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-08 18:16:25,297 INFO L1307 $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; [2025-03-08 18:16:25,332 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5793: havoc #t~ret422;havoc #t~mem421.base, #t~mem421.offset; [2025-03-08 18:16:25,343 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-08 18:16:25,356 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 18:16:25,369 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L9214: havoc #t~mem1357.base, #t~mem1357.offset; [2025-03-08 18:16:25,384 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5624: havoc #t~ret408.base, #t~ret408.offset; [2025-03-08 18:16:25,420 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 18:16:25,437 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8231: havoc #t~mem1063;havoc #t~mem1064.base, #t~mem1064.offset;havoc #t~mem1065;havoc #t~mem1066.base, #t~mem1066.offset;call ULTIMATE.dealloc(~#buf~2.base, ~#buf~2.offset);havoc ~#buf~2.base, ~#buf~2.offset; [2025-03-08 18:16:25,446 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L9225: havoc #t~mem1360.base, #t~mem1360.offset; [2025-03-08 18:16:32,235 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8644: havoc aws_ring_buffer_acquire_#t~ret1238#1; [2025-03-08 18:16:32,236 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8630-2: havoc aws_ring_buffer_acquire_#t~ret1229#1; [2025-03-08 18:16:32,236 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8638: havoc aws_ring_buffer_acquire_~ring_space~0#1; [2025-03-08 18:16:32,236 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8688: havoc aws_ring_buffer_acquire_#t~ret1268#1; [2025-03-08 18:16:32,432 INFO L? ?]: Removed 224 outVars from TransFormulas that were not future-live. [2025-03-08 18:16:32,433 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 18:16:32,466 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 18:16:32,466 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 18:16:32,467 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:16:32 BoogieIcfgContainer [2025-03-08 18:16:32,467 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 18:16:32,469 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 18:16:32,469 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 18:16:32,474 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 18:16:32,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 06:16:22" (1/3) ... [2025-03-08 18:16:32,475 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51020690 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:16:32, skipping insertion in model container [2025-03-08 18:16:32,475 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:24" (2/3) ... [2025-03-08 18:16:32,475 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51020690 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:16:32, skipping insertion in model container [2025-03-08 18:16:32,475 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:16:32" (3/3) ... [2025-03-08 18:16:32,476 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_ring_buffer_acquire_harness.i [2025-03-08 18:16:32,490 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 18:16:32,493 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_ring_buffer_acquire_harness.i that has 22 procedures, 413 locations, 1 initial locations, 3 loop locations, and 4 error locations. [2025-03-08 18:16:32,554 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 18:16:32,565 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;@213b08f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 18:16:32,566 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-08 18:16:32,571 INFO L276 IsEmpty]: Start isEmpty. Operand has 413 states, 241 states have (on average 1.2199170124481329) internal successors, (294), 246 states have internal predecessors, (294), 146 states have call successors, (146), 21 states have call predecessors, (146), 21 states have return successors, (146), 146 states have call predecessors, (146), 146 states have call successors, (146) [2025-03-08 18:16:32,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-03-08 18:16:32,578 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:16:32,579 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 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] [2025-03-08 18:16:32,580 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting aws_atomic_store_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, aws_atomic_load_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 1 more)] === [2025-03-08 18:16:32,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:16:32,585 INFO L85 PathProgramCache]: Analyzing trace with hash 706301673, now seen corresponding path program 1 times [2025-03-08 18:16:32,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:16:32,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947752210] [2025-03-08 18:16:32,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:16:32,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:17:41,933 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-08 18:17:42,473 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-08 18:17:42,474 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:17:42,474 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:17:43,198 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-03-08 18:17:43,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:17:43,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947752210] [2025-03-08 18:17:43,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947752210] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:17:43,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509300807] [2025-03-08 18:17:43,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:17:43,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:17:43,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:17:43,203 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 18:17:43,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process