./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_up_to_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_up_to_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 8447345c77c4cd41702c25ecfe2d3607219db9a014ac178446aa435c3dbc6c8c --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 18:16:22,918 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 18:16:22,981 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 18:16:22,986 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 18:16:22,987 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 18:16:23,003 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 18:16:23,003 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 18:16:23,003 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 18:16:23,004 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 18:16:23,004 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 18:16:23,004 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 18:16:23,004 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 18:16:23,004 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 18:16:23,004 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 18:16:23,004 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 18:16:23,004 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 18:16:23,005 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 18:16:23,005 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 18:16:23,005 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 18:16:23,005 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 18:16:23,005 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 18:16:23,005 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 18:16:23,005 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 18:16:23,005 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 18:16:23,005 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 18:16:23,005 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 18:16:23,005 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 18:16:23,005 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 18:16:23,006 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 18:16:23,006 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:16:23,006 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 18:16:23,006 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 18:16:23,006 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 18:16:23,006 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 18:16:23,006 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 18:16:23,006 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 18:16:23,006 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 18:16:23,006 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 18:16:23,006 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 18:16:23,006 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 18:16:23,007 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 -> 8447345c77c4cd41702c25ecfe2d3607219db9a014ac178446aa435c3dbc6c8c [2025-03-08 18:16:23,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 18:16:23,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 18:16:23,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 18:16:23,264 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 18:16:23,264 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 18:16:23,266 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_up_to_harness.i [2025-03-08 18:16:24,468 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ef641278/aeb35b4400df4441a5613fc7a532a540/FLAG8416b12c3 [2025-03-08 18:16:25,047 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 18:16:25,050 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_up_to_harness.i [2025-03-08 18:16:25,091 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ef641278/aeb35b4400df4441a5613fc7a532a540/FLAG8416b12c3 [2025-03-08 18:16:25,111 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ef641278/aeb35b4400df4441a5613fc7a532a540 [2025-03-08 18:16:25,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 18:16:25,115 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 18:16:25,116 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 18:16:25,116 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 18:16:25,120 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 18:16:25,121 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:16:25" (1/1) ... [2025-03-08 18:16:25,121 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33a1d0f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:25, skipping insertion in model container [2025-03-08 18:16:25,123 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:16:25" (1/1) ... [2025-03-08 18:16:25,193 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 18:16:25,433 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_up_to_harness.i[4503,4516] [2025-03-08 18:16:25,444 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_up_to_harness.i[4563,4576] [2025-03-08 18:16:26,061 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:26,061 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:26,061 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:26,062 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:26,063 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:26,077 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:26,078 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:26,079 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:26,079 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:26,573 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:26,573 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:26,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:16:26,728 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 18:16:26,740 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_up_to_harness.i[4503,4516] [2025-03-08 18:16:26,745 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_up_to_harness.i[4563,4576] [2025-03-08 18:16:26,782 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:26,782 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:26,783 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:26,784 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:26,785 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:26,790 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:26,791 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:26,792 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:26,794 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:26,891 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2025-03-08 18:16:26,893 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:26,894 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:26,915 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8989-9000] [2025-03-08 18:16:26,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:16:27,124 INFO L204 MainTranslator]: Completed translation [2025-03-08 18:16:27,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:27 WrapperNode [2025-03-08 18:16:27,125 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 18:16:27,126 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 18:16:27,126 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 18:16:27,126 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 18:16:27,131 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:27" (1/1) ... [2025-03-08 18:16:27,207 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:27" (1/1) ... [2025-03-08 18:16:27,277 INFO L138 Inliner]: procedures = 684, calls = 2931, calls flagged for inlining = 60, calls inlined = 11, statements flattened = 1229 [2025-03-08 18:16:27,277 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 18:16:27,278 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 18:16:27,278 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 18:16:27,278 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 18:16:27,294 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:27" (1/1) ... [2025-03-08 18:16:27,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:27" (1/1) ... [2025-03-08 18:16:27,303 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:27" (1/1) ... [2025-03-08 18:16:27,381 INFO L175 MemorySlicer]: Split 624 memory accesses to 5 slices as follows [257, 2, 243, 68, 54]. 41 percent of accesses are in the largest equivalence class. The 27 initializations are split as follows [0, 2, 11, 10, 4]. The 523 writes are split as follows [257, 0, 232, 4, 30]. [2025-03-08 18:16:27,382 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:27" (1/1) ... [2025-03-08 18:16:27,382 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:27" (1/1) ... [2025-03-08 18:16:27,436 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:27" (1/1) ... [2025-03-08 18:16:27,438 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:27" (1/1) ... [2025-03-08 18:16:27,451 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:27" (1/1) ... [2025-03-08 18:16:27,457 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:27" (1/1) ... [2025-03-08 18:16:27,469 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 18:16:27,470 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 18:16:27,470 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 18:16:27,470 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 18:16:27,471 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:27" (1/1) ... [2025-03-08 18:16:27,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:16:27,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:16:27,496 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 18:16:27,501 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 18:16:27,515 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-08 18:16:27,516 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-08 18:16:27,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 18:16:27,516 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-08 18:16:27,516 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-08 18:16:27,516 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr [2025-03-08 18:16:27,516 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr [2025-03-08 18:16:27,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 18:16:27,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 18:16:27,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 18:16:27,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 18:16:27,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 18:16:27,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 18:16:27,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 18:16:27,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 18:16:27,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 18:16:27,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 18:16:27,516 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-08 18:16:27,516 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-08 18:16:27,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 18:16:27,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 18:16:27,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 18:16:27,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 18:16:27,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 18:16:27,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 18:16:27,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 18:16:27,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 18:16:27,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 18:16:27,517 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_priv_xlate_order [2025-03-08 18:16:27,517 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_priv_xlate_order [2025-03-08 18:16:27,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 18:16:27,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 18:16:27,517 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 18:16:27,517 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 18:16:27,517 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-08 18:16:27,517 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-08 18:16:27,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 18:16:27,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 18:16:27,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 18:16:27,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 18:16:27,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 18:16:27,517 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr [2025-03-08 18:16:27,517 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr [2025-03-08 18:16:27,517 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 18:16:27,517 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 18:16:27,517 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_from_empty_array [2025-03-08 18:16:27,517 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_from_empty_array [2025-03-08 18:16:27,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 18:16:27,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 18:16:27,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 18:16:27,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 18:16:27,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 18:16:27,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 18:16:27,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 18:16:27,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 18:16:27,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 18:16:27,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 18:16:27,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 18:16:27,518 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_check_atomic_ptr [2025-03-08 18:16:27,518 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_check_atomic_ptr [2025-03-08 18:16:27,518 INFO L130 BoogieDeclarations]: Found specification of procedure is_front_valid_state [2025-03-08 18:16:27,518 INFO L138 BoogieDeclarations]: Found implementation of procedure is_front_valid_state [2025-03-08 18:16:27,518 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-08 18:16:27,518 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-08 18:16:27,518 INFO L130 BoogieDeclarations]: Found specification of procedure is_ends_valid_state [2025-03-08 18:16:27,518 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ends_valid_state [2025-03-08 18:16:27,518 INFO L130 BoogieDeclarations]: Found specification of procedure s_buf_belongs_to_pool [2025-03-08 18:16:27,518 INFO L138 BoogieDeclarations]: Found implementation of procedure s_buf_belongs_to_pool [2025-03-08 18:16:27,518 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-08 18:16:27,518 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-08 18:16:27,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 18:16:27,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 18:16:27,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 18:16:27,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 18:16:27,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 18:16:27,518 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr_explicit [2025-03-08 18:16:27,518 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr_explicit [2025-03-08 18:16:27,518 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_is_valid [2025-03-08 18:16:27,518 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_is_valid [2025-03-08 18:16:27,518 INFO L130 BoogieDeclarations]: Found specification of procedure is_middle_valid_state [2025-03-08 18:16:27,518 INFO L138 BoogieDeclarations]: Found implementation of procedure is_middle_valid_state [2025-03-08 18:16:27,518 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr_explicit [2025-03-08 18:16:27,518 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr_explicit [2025-03-08 18:16:27,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 18:16:27,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 18:16:27,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 18:16:27,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 18:16:27,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 18:16:27,792 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 18:16:27,794 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 18:16:27,828 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-08 18:16:27,898 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 18:16:27,901 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-08 18:16:27,903 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-08 18:16:27,985 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 18:16:28,023 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5793: havoc #t~ret422;havoc #t~mem421.base, #t~mem421.offset; [2025-03-08 18:16:28,029 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-08 18:16:28,038 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 18:16:28,048 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L9214: havoc #t~mem1357.base, #t~mem1357.offset; [2025-03-08 18:16:28,065 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5624: havoc #t~ret408.base, #t~ret408.offset; [2025-03-08 18:16:28,110 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 18:16:28,136 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 18:16:28,148 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L9225: havoc #t~mem1360.base, #t~mem1360.offset; [2025-03-08 18:16:35,086 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8791: havoc aws_ring_buffer_acquire_up_to_#t~ret1323#1; [2025-03-08 18:16:35,086 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8712: havoc aws_ring_buffer_acquire_up_to_~ring_space~1#1, aws_ring_buffer_acquire_up_to_~allocation_size~1#1; [2025-03-08 18:16:35,086 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8703: havoc aws_ring_buffer_acquire_up_to_#t~ret1273#1; [2025-03-08 18:16:35,086 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8720: havoc aws_ring_buffer_acquire_up_to_#t~ret1282#1; [2025-03-08 18:16:35,225 INFO L? ?]: Removed 227 outVars from TransFormulas that were not future-live. [2025-03-08 18:16:35,226 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 18:16:35,253 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 18:16:35,253 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 18:16:35,253 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:16:35 BoogieIcfgContainer [2025-03-08 18:16:35,253 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 18:16:35,255 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 18:16:35,255 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 18:16:35,259 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 18:16:35,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 06:16:25" (1/3) ... [2025-03-08 18:16:35,259 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b99c08b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:16:35, skipping insertion in model container [2025-03-08 18:16:35,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:27" (2/3) ... [2025-03-08 18:16:35,260 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b99c08b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:16:35, skipping insertion in model container [2025-03-08 18:16:35,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:16:35" (3/3) ... [2025-03-08 18:16:35,261 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_ring_buffer_acquire_up_to_harness.i [2025-03-08 18:16:35,273 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 18:16:35,275 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_ring_buffer_acquire_up_to_harness.i that has 22 procedures, 428 locations, 1 initial locations, 2 loop locations, and 4 error locations. [2025-03-08 18:16:35,336 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 18:16:35,344 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;@204610d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 18:16:35,346 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-08 18:16:35,352 INFO L276 IsEmpty]: Start isEmpty. Operand has 428 states, 243 states have (on average 1.213991769547325) internal successors, (295), 247 states have internal predecessors, (295), 159 states have call successors, (159), 21 states have call predecessors, (159), 21 states have return successors, (159), 159 states have call predecessors, (159), 159 states have call successors, (159) [2025-03-08 18:16:35,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-03-08 18:16:35,359 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:16:35,359 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 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, 1, 1, 1] [2025-03-08 18:16:35,360 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 18:16:35,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:16:35,366 INFO L85 PathProgramCache]: Analyzing trace with hash 889928156, now seen corresponding path program 1 times [2025-03-08 18:16:35,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:16:35,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412845753] [2025-03-08 18:16:35,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:16:35,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:17:41,255 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-03-08 18:17:41,778 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-03-08 18:17:41,779 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:17:41,779 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:17:42,520 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-03-08 18:17:42,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:17:42,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412845753] [2025-03-08 18:17:42,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412845753] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:17:42,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148432116] [2025-03-08 18:17:42,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:17:42,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:17:42,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:17:42,524 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 18:17:42,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process