./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 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_harness.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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-?-551b009-m [2025-01-10 02:39:32,615 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 02:39:32,651 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-01-10 02:39:32,654 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 02:39:32,654 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 02:39:32,667 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 02:39:32,668 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 02:39:32,668 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 02:39:32,668 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 02:39:32,668 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 02:39:32,668 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 02:39:32,668 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 02:39:32,669 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 02:39:32,669 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 02:39:32,669 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 02:39:32,669 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 02:39:32,669 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 02:39:32,669 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 02:39:32,669 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 02:39:32,669 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 02:39:32,669 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 02:39:32,669 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 02:39:32,669 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 02:39:32,669 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 02:39:32,669 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 02:39:32,669 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 02:39:32,669 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 02:39:32,669 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 02:39:32,669 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 02:39:32,669 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 02:39:32,670 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 02:39:32,670 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 02:39:32,670 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 02:39:32,670 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 02:39:32,670 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 02:39:32,670 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 02:39:32,670 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 02:39:32,670 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 02:39:32,670 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 02:39:32,670 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 02:39:32,670 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 02:39:32,670 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 02:39:32,670 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 02:39:32,670 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 02:39:32,670 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 02:39:32,670 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 02:39:32,670 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 02:39:32,670 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-jdk21/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 [2025-01-10 02:39:32,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 02:39:32,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 02:39:32,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 02:39:32,883 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 02:39:32,884 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 02:39:32,885 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_harness.i [2025-01-10 02:39:34,057 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d52660740/aaa2f4f7788443aeb52084fee02dd6d6/FLAGb61783afb [2025-01-10 02:39:34,559 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 02:39:34,562 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_harness.i [2025-01-10 02:39:34,592 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d52660740/aaa2f4f7788443aeb52084fee02dd6d6/FLAGb61783afb [2025-01-10 02:39:34,605 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d52660740/aaa2f4f7788443aeb52084fee02dd6d6 [2025-01-10 02:39:34,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 02:39:34,609 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 02:39:34,611 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 02:39:34,611 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 02:39:34,614 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 02:39:34,615 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:39:34" (1/1) ... [2025-01-10 02:39:34,616 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@758d9311 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:34, skipping insertion in model container [2025-01-10 02:39:34,616 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:39:34" (1/1) ... [2025-01-10 02:39:34,680 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 02:39:35,741 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-10 02:39:35,742 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-10 02:39:35,742 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-10 02:39:35,743 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-10 02:39:35,743 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-10 02:39:35,752 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-10 02:39:35,752 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-10 02:39:35,753 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-10 02:39:35,754 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-10 02:39:36,613 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-10 02:39:36,614 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-10 02:39:36,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 02:39:36,744 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 02:39:36,777 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-10 02:39:36,777 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-10 02:39:36,777 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-10 02:39:36,778 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-10 02:39:36,778 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-10 02:39:36,781 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-10 02:39:36,781 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-10 02:39:36,782 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-10 02:39:36,782 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-10 02:39:36,867 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2025-01-10 02:39:36,869 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-10 02:39:36,869 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-10 02:39:36,883 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8989-9000] [2025-01-10 02:39:36,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 02:39:37,069 INFO L204 MainTranslator]: Completed translation [2025-01-10 02:39:37,069 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:37 WrapperNode [2025-01-10 02:39:37,070 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 02:39:37,070 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 02:39:37,071 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 02:39:37,071 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 02:39:37,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:37" (1/1) ... [2025-01-10 02:39:37,123 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:37" (1/1) ... [2025-01-10 02:39:37,178 INFO L138 Inliner]: procedures = 684, calls = 2945, calls flagged for inlining = 61, calls inlined = 12, statements flattened = 1209 [2025-01-10 02:39:37,178 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 02:39:37,179 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 02:39:37,179 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 02:39:37,179 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 02:39:37,186 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:37" (1/1) ... [2025-01-10 02:39:37,187 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:37" (1/1) ... [2025-01-10 02:39:37,193 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:37" (1/1) ... [2025-01-10 02:39:37,275 INFO L175 MemorySlicer]: Split 617 memory accesses to 5 slices as follows [2, 257, 243, 68, 47]. 42 percent of accesses are in the largest equivalence class. The 27 initializations are split as follows [2, 0, 11, 10, 4]. The 515 writes are split as follows [0, 257, 232, 4, 22]. [2025-01-10 02:39:37,275 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:37" (1/1) ... [2025-01-10 02:39:37,275 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:37" (1/1) ... [2025-01-10 02:39:37,302 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:37" (1/1) ... [2025-01-10 02:39:37,305 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:37" (1/1) ... [2025-01-10 02:39:37,309 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:37" (1/1) ... [2025-01-10 02:39:37,314 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:37" (1/1) ... [2025-01-10 02:39:37,320 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:37" (1/1) ... [2025-01-10 02:39:37,329 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 02:39:37,329 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 02:39:37,330 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 02:39:37,330 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 02:39:37,330 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:37" (1/1) ... [2025-01-10 02:39:37,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 02:39:37,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:39:37,386 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-10 02:39:37,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-10 02:39:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-01-10 02:39:37,411 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-01-10 02:39:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-10 02:39:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-01-10 02:39:37,411 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-01-10 02:39:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr [2025-01-10 02:39:37,411 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr [2025-01-10 02:39:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-10 02:39:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-10 02:39:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-10 02:39:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-10 02:39:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-10 02:39:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-10 02:39:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-10 02:39:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-10 02:39:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-10 02:39:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-10 02:39:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-01-10 02:39:37,412 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-01-10 02:39:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-10 02:39:37,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-10 02:39:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-10 02:39:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 02:39:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-10 02:39:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-10 02:39:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-10 02:39:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-10 02:39:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-10 02:39:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_priv_xlate_order [2025-01-10 02:39:37,412 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_priv_xlate_order [2025-01-10 02:39:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 02:39:37,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 02:39:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-01-10 02:39:37,412 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-01-10 02:39:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-10 02:39:37,412 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-10 02:39:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-01-10 02:39:37,412 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-01-10 02:39:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-10 02:39:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-10 02:39:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-10 02:39:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-10 02:39:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-10 02:39:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr [2025-01-10 02:39:37,415 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr [2025-01-10 02:39:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-10 02:39:37,415 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-10 02:39:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_from_empty_array [2025-01-10 02:39:37,415 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_from_empty_array [2025-01-10 02:39:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-10 02:39:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-10 02:39:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-10 02:39:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-10 02:39:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-10 02:39:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-10 02:39:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-10 02:39:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-10 02:39:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-10 02:39:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-10 02:39:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-10 02:39:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_check_atomic_ptr [2025-01-10 02:39:37,416 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_check_atomic_ptr [2025-01-10 02:39:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure is_front_valid_state [2025-01-10 02:39:37,416 INFO L138 BoogieDeclarations]: Found implementation of procedure is_front_valid_state [2025-01-10 02:39:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-01-10 02:39:37,416 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-01-10 02:39:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure is_ends_valid_state [2025-01-10 02:39:37,416 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ends_valid_state [2025-01-10 02:39:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure s_buf_belongs_to_pool [2025-01-10 02:39:37,416 INFO L138 BoogieDeclarations]: Found implementation of procedure s_buf_belongs_to_pool [2025-01-10 02:39:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-01-10 02:39:37,416 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-01-10 02:39:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-10 02:39:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-10 02:39:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-10 02:39:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-10 02:39:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-10 02:39:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr_explicit [2025-01-10 02:39:37,416 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr_explicit [2025-01-10 02:39:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_is_valid [2025-01-10 02:39:37,416 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_is_valid [2025-01-10 02:39:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure is_middle_valid_state [2025-01-10 02:39:37,416 INFO L138 BoogieDeclarations]: Found implementation of procedure is_middle_valid_state [2025-01-10 02:39:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr_explicit [2025-01-10 02:39:37,416 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr_explicit [2025-01-10 02:39:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 02:39:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-10 02:39:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-10 02:39:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-10 02:39:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-10 02:39:37,756 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 02:39:37,761 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 02:39:46,444 INFO L? ?]: Removed 228 outVars from TransFormulas that were not future-live. [2025-01-10 02:39:46,444 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 02:39:46,467 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 02:39:46,468 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2025-01-10 02:39:46,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:39:46 BoogieIcfgContainer [2025-01-10 02:39:46,468 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 02:39:46,470 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 02:39:46,470 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 02:39:46,473 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 02:39:46,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 02:39:34" (1/3) ... [2025-01-10 02:39:46,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c46fd91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:39:46, skipping insertion in model container [2025-01-10 02:39:46,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:39:37" (2/3) ... [2025-01-10 02:39:46,474 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c46fd91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:39:46, skipping insertion in model container [2025-01-10 02:39:46,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:39:46" (3/3) ... [2025-01-10 02:39:46,476 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_ring_buffer_acquire_harness.i [2025-01-10 02:39:46,486 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 02:39:46,489 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_ring_buffer_acquire_harness.i that has 23 procedures, 418 locations, 1 initial locations, 3 loop locations, and 4 error locations. [2025-01-10 02:39:46,545 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 02:39:46,554 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;@392f6fc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 02:39:46,554 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-01-10 02:39:46,557 INFO L276 IsEmpty]: Start isEmpty. Operand has 418 states, 243 states have (on average 1.2181069958847737) internal successors, (296), 248 states have internal predecessors, (296), 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) [2025-01-10 02:39:46,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-01-10 02:39:46,563 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:39:46,564 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] [2025-01-10 02:39:46,564 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)] === [2025-01-10 02:39:46,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:39:46,568 INFO L85 PathProgramCache]: Analyzing trace with hash -200229976, now seen corresponding path program 1 times [2025-01-10 02:39:46,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:39:46,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808586073] [2025-01-10 02:39:46,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:39:46,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:40:55,669 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-01-10 02:40:56,197 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-01-10 02:40:56,198 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:40:56,198 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:40:56,874 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-01-10 02:40:56,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:40:56,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808586073] [2025-01-10 02:40:56,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808586073] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:40:56,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174912276] [2025-01-10 02:40:56,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:40:56,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:40:56,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:40:56,879 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 02:40:56,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process