./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows 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-Overflow-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 ! overflow) ) --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 [2025-03-09 02:48:36,996 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 02:48:37,043 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-09 02:48:37,048 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 02:48:37,051 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 02:48:37,072 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 02:48:37,073 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 02:48:37,073 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 02:48:37,073 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 02:48:37,074 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 02:48:37,074 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 02:48:37,074 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 02:48:37,074 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 02:48:37,074 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 02:48:37,075 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 02:48:37,075 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 02:48:37,076 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 02:48:37,076 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 02:48:37,076 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 02:48:37,076 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 02:48:37,076 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 02:48:37,076 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 02:48:37,076 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 02:48:37,076 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 02:48:37,076 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 02:48:37,076 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 02:48:37,076 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 02:48:37,076 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 02:48:37,076 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 02:48:37,076 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 02:48:37,076 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 02:48:37,076 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 02:48:37,076 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 02:48:37,076 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 02:48:37,076 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 02:48:37,076 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 02:48:37,076 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 02:48:37,077 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 02:48:37,077 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 02:48:37,077 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 02:48:37,077 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 02:48:37,077 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 02:48:37,077 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 ! overflow) ) 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 [2025-03-09 02:48:37,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 02:48:37,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 02:48:37,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 02:48:37,314 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 02:48:37,315 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 02:48:37,315 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_harness.i [2025-03-09 02:48:38,445 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1eca1dc97/62b1dbc9923a4c45bf11b10b70b333d6/FLAGe628aebdd [2025-03-09 02:48:38,933 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 02:48:38,933 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_harness.i [2025-03-09 02:48:38,963 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1eca1dc97/62b1dbc9923a4c45bf11b10b70b333d6/FLAGe628aebdd [2025-03-09 02:48:39,018 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1eca1dc97/62b1dbc9923a4c45bf11b10b70b333d6 [2025-03-09 02:48:39,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 02:48:39,020 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 02:48:39,021 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 02:48:39,022 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 02:48:39,024 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 02:48:39,025 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 02:48:39" (1/1) ... [2025-03-09 02:48:39,025 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a73e49f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:48:39, skipping insertion in model container [2025-03-09 02:48:39,026 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 02:48:39" (1/1) ... [2025-03-09 02:48:39,081 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 02:48:39,967 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-09 02:48:39,968 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-09 02:48:39,968 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-09 02:48:39,968 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-09 02:48:39,969 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-09 02:48:39,979 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-09 02:48:39,979 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-09 02:48:39,980 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-09 02:48:39,981 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-09 02:48:40,415 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-09 02:48:40,415 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-09 02:48:40,515 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 02:48:40,556 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 02:48:40,608 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-09 02:48:40,609 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-09 02:48:40,609 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-09 02:48:40,609 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-09 02:48:40,610 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-09 02:48:40,613 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-09 02:48:40,614 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-09 02:48:40,614 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-09 02:48:40,615 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-09 02:48:40,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2025-03-09 02:48:40,715 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-09 02:48:40,715 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-09 02:48:40,737 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8989-9000] [2025-03-09 02:48:40,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 02:48:40,934 INFO L204 MainTranslator]: Completed translation [2025-03-09 02:48:40,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:48:40 WrapperNode [2025-03-09 02:48:40,935 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 02:48:40,935 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 02:48:40,936 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 02:48:40,936 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 02:48:40,940 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:48:40" (1/1) ... [2025-03-09 02:48:40,996 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:48:40" (1/1) ... [2025-03-09 02:48:41,071 INFO L138 Inliner]: procedures = 684, calls = 2945, calls flagged for inlining = 61, calls inlined = 12, statements flattened = 1209 [2025-03-09 02:48:41,072 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 02:48:41,072 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 02:48:41,072 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 02:48:41,072 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 02:48:41,082 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:48:40" (1/1) ... [2025-03-09 02:48:41,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:48:40" (1/1) ... [2025-03-09 02:48:41,090 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:48:40" (1/1) ... [2025-03-09 02:48:41,159 INFO L175 MemorySlicer]: Split 617 memory accesses to 5 slices as follows [2, 257, 47, 243, 68]. 42 percent of accesses are in the largest equivalence class. The 27 initializations are split as follows [2, 0, 4, 11, 10]. The 515 writes are split as follows [0, 257, 22, 232, 4]. [2025-03-09 02:48:41,159 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:48:40" (1/1) ... [2025-03-09 02:48:41,159 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:48:40" (1/1) ... [2025-03-09 02:48:41,192 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:48:40" (1/1) ... [2025-03-09 02:48:41,198 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:48:40" (1/1) ... [2025-03-09 02:48:41,220 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:48:40" (1/1) ... [2025-03-09 02:48:41,229 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:48:40" (1/1) ... [2025-03-09 02:48:41,239 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 02:48:41,240 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 02:48:41,242 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 02:48:41,242 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 02:48:41,242 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:48:40" (1/1) ... [2025-03-09 02:48:41,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 02:48:41,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:48:41,270 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) [2025-03-09 02:48:41,273 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 [2025-03-09 02:48:41,289 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-09 02:48:41,290 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-09 02:48:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-09 02:48:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-09 02:48:41,290 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-09 02:48:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr [2025-03-09 02:48:41,290 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr [2025-03-09 02:48:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-09 02:48:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-09 02:48:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-09 02:48:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-09 02:48:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-09 02:48:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-09 02:48:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-09 02:48:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-09 02:48:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-09 02:48:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-09 02:48:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-09 02:48:41,290 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-09 02:48:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-09 02:48:41,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-09 02:48:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-09 02:48:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 02:48:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-09 02:48:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-09 02:48:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-09 02:48:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-09 02:48:41,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-09 02:48:41,291 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_priv_xlate_order [2025-03-09 02:48:41,291 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_priv_xlate_order [2025-03-09 02:48:41,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 02:48:41,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 02:48:41,291 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-03-09 02:48:41,291 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-03-09 02:48:41,291 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-09 02:48:41,291 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-09 02:48:41,291 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-09 02:48:41,291 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-09 02:48:41,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-09 02:48:41,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-09 02:48:41,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-09 02:48:41,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-09 02:48:41,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-09 02:48:41,291 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr [2025-03-09 02:48:41,291 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr [2025-03-09 02:48:41,291 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-09 02:48:41,291 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-09 02:48:41,291 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_from_empty_array [2025-03-09 02:48:41,291 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_from_empty_array [2025-03-09 02:48:41,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-09 02:48:41,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-09 02:48:41,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-09 02:48:41,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-09 02:48:41,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-09 02:48:41,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-09 02:48:41,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-09 02:48:41,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-09 02:48:41,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-09 02:48:41,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-09 02:48:41,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-09 02:48:41,293 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_check_atomic_ptr [2025-03-09 02:48:41,293 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_check_atomic_ptr [2025-03-09 02:48:41,293 INFO L130 BoogieDeclarations]: Found specification of procedure is_front_valid_state [2025-03-09 02:48:41,293 INFO L138 BoogieDeclarations]: Found implementation of procedure is_front_valid_state [2025-03-09 02:48:41,294 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-09 02:48:41,294 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-09 02:48:41,294 INFO L130 BoogieDeclarations]: Found specification of procedure is_ends_valid_state [2025-03-09 02:48:41,294 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ends_valid_state [2025-03-09 02:48:41,294 INFO L130 BoogieDeclarations]: Found specification of procedure s_buf_belongs_to_pool [2025-03-09 02:48:41,294 INFO L138 BoogieDeclarations]: Found implementation of procedure s_buf_belongs_to_pool [2025-03-09 02:48:41,294 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-09 02:48:41,295 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-09 02:48:41,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-09 02:48:41,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-09 02:48:41,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-09 02:48:41,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-09 02:48:41,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-09 02:48:41,295 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr_explicit [2025-03-09 02:48:41,295 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr_explicit [2025-03-09 02:48:41,295 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_is_valid [2025-03-09 02:48:41,295 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_is_valid [2025-03-09 02:48:41,295 INFO L130 BoogieDeclarations]: Found specification of procedure is_middle_valid_state [2025-03-09 02:48:41,295 INFO L138 BoogieDeclarations]: Found implementation of procedure is_middle_valid_state [2025-03-09 02:48:41,295 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr_explicit [2025-03-09 02:48:41,295 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr_explicit [2025-03-09 02:48:41,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 02:48:41,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-09 02:48:41,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-09 02:48:41,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-09 02:48:41,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-09 02:48:41,565 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 02:48:41,567 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 02:48:41,599 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-09 02:48:41,649 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; [2025-03-09 02:48:41,651 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-09 02:48:41,652 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-09 02:48:41,716 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; [2025-03-09 02:48:41,750 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5793: havoc #t~ret422;havoc #t~mem421.base, #t~mem421.offset; [2025-03-09 02:48:41,755 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-09 02:48:41,768 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; [2025-03-09 02:48:41,780 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L9214: havoc #t~mem1357.base, #t~mem1357.offset; [2025-03-09 02:48:41,799 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5624: havoc #t~ret408.base, #t~ret408.offset; [2025-03-09 02:48:41,833 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; [2025-03-09 02:48:41,856 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; [2025-03-09 02:48:41,868 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L9225: havoc #t~mem1360.base, #t~mem1360.offset; [2025-03-09 02:48:48,596 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8644: havoc aws_ring_buffer_acquire_#t~ret1238#1; [2025-03-09 02:48:48,596 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8630-2: havoc aws_ring_buffer_acquire_#t~ret1229#1; [2025-03-09 02:48:48,596 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8638: havoc aws_ring_buffer_acquire_~ring_space~0#1; [2025-03-09 02:48:48,597 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8688: havoc aws_ring_buffer_acquire_#t~ret1268#1; [2025-03-09 02:48:48,735 INFO L? ?]: Removed 228 outVars from TransFormulas that were not future-live. [2025-03-09 02:48:48,735 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 02:48:48,754 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 02:48:48,755 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 02:48:48,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 02:48:48 BoogieIcfgContainer [2025-03-09 02:48:48,755 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 02:48:48,757 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 02:48:48,757 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 02:48:48,760 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 02:48:48,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 02:48:39" (1/3) ... [2025-03-09 02:48:48,761 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1636ad1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 02:48:48, skipping insertion in model container [2025-03-09 02:48:48,761 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:48:40" (2/3) ... [2025-03-09 02:48:48,762 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1636ad1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 02:48:48, skipping insertion in model container [2025-03-09 02:48:48,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 02:48:48" (3/3) ... [2025-03-09 02:48:48,763 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_ring_buffer_acquire_harness.i [2025-03-09 02:48:48,773 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 02:48:48,775 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_ring_buffer_acquire_harness.i that has 23 procedures, 419 locations, 1 initial locations, 3 loop locations, and 4 error locations. [2025-03-09 02:48:48,825 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 02:48:48,834 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;@1f46d22e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 02:48:48,834 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-09 02:48:48,840 INFO L276 IsEmpty]: Start isEmpty. Operand has 419 states, 244 states have (on average 1.2172131147540983) internal successors, (297), 249 states have internal predecessors, (297), 148 states have call successors, (148), 22 states have call predecessors, (148), 22 states have return successors, (148), 148 states have call predecessors, (148), 148 states have call successors, (148) [2025-03-09 02:48:48,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-03-09 02:48:48,846 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:48:48,847 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] [2025-03-09 02:48:48,847 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting aws_atomic_store_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [aws_atomic_load_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, aws_atomic_store_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 2 more)] === [2025-03-09 02:48:48,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:48:48,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1919198585, now seen corresponding path program 1 times [2025-03-09 02:48:48,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:48:48,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769361319] [2025-03-09 02:48:48,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:48:48,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:49:54,858 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-09 02:49:55,409 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-09 02:49:55,410 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:49:55,410 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:49:56,154 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-03-09 02:49:56,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:49:56,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769361319] [2025-03-09 02:49:56,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769361319] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:49:56,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019915951] [2025-03-09 02:49:56,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:49:56,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:49:56,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:49:56,159 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) [2025-03-09 02:49:56,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process