./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_harness_negated.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 4e59d9fbf3221e05899a4337354f2c9a73733c9d6b6114c066d75ddd1c55b4e4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 18:16:21,109 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 18:16:21,165 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 18:16:21,171 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 18:16:21,172 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 18:16:21,187 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 18:16:21,188 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 18:16:21,188 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 18:16:21,188 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 18:16:21,188 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 18:16:21,188 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 18:16:21,188 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 18:16:21,189 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 18:16:21,189 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 18:16:21,189 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 18:16:21,189 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 18:16:21,189 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 18:16:21,189 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 18:16:21,189 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 18:16:21,189 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 18:16:21,189 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 18:16:21,189 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 18:16:21,190 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 18:16:21,190 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 18:16:21,190 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 18:16:21,190 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 18:16:21,190 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 18:16:21,190 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 18:16:21,190 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 18:16:21,190 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:16:21,190 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 18:16:21,190 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 18:16:21,190 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 18:16:21,191 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 18:16:21,191 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 18:16:21,191 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 18:16:21,191 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 18:16:21,191 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 18:16:21,191 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 18:16:21,191 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 18:16:21,191 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 -> 4e59d9fbf3221e05899a4337354f2c9a73733c9d6b6114c066d75ddd1c55b4e4 [2025-03-08 18:16:21,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 18:16:21,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 18:16:21,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 18:16:21,423 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 18:16:21,423 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 18:16:21,424 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_harness_negated.i [2025-03-08 18:16:22,632 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05d8df8c2/daf144ca5bc940568cabf201cfc4e5a9/FLAGf78878c6b [2025-03-08 18:16:23,244 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 18:16:23,244 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_harness_negated.i [2025-03-08 18:16:23,282 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05d8df8c2/daf144ca5bc940568cabf201cfc4e5a9/FLAGf78878c6b [2025-03-08 18:16:23,710 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05d8df8c2/daf144ca5bc940568cabf201cfc4e5a9 [2025-03-08 18:16:23,712 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 18:16:23,713 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 18:16:23,714 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 18:16:23,714 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 18:16:23,717 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 18:16:23,718 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:16:23" (1/1) ... [2025-03-08 18:16:23,719 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6006f530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:23, skipping insertion in model container [2025-03-08 18:16:23,719 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:16:23" (1/1) ... [2025-03-08 18:16:23,799 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 18:16:24,030 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_harness_negated.i[4497,4510] [2025-03-08 18:16:24,038 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_harness_negated.i[4557,4570] [2025-03-08 18:16:24,580 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:24,581 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:24,581 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:24,581 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:24,582 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:24,592 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:24,592 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:24,594 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:24,594 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:25,053 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:25,053 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:25,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:16:25,191 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 18:16:25,201 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_harness_negated.i[4497,4510] [2025-03-08 18:16:25,203 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_harness_negated.i[4557,4570] [2025-03-08 18:16:25,260 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:25,261 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:25,261 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:25,262 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:25,262 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:25,267 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:25,267 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:25,268 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:25,268 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:25,370 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8237] [2025-03-08 18:16:25,371 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:25,371 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:16:25,393 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8957-8968] [2025-03-08 18:16:25,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:16:25,575 INFO L204 MainTranslator]: Completed translation [2025-03-08 18:16:25,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:25 WrapperNode [2025-03-08 18:16:25,576 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 18:16:25,577 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 18:16:25,578 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 18:16:25,578 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 18:16:25,583 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:25" (1/1) ... [2025-03-08 18:16:25,661 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:25" (1/1) ... [2025-03-08 18:16:25,728 INFO L138 Inliner]: procedures = 684, calls = 2943, calls flagged for inlining = 61, calls inlined = 12, statements flattened = 1207 [2025-03-08 18:16:25,729 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 18:16:25,729 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 18:16:25,730 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 18:16:25,730 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 18:16:25,737 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:25" (1/1) ... [2025-03-08 18:16:25,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:25" (1/1) ... [2025-03-08 18:16:25,747 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:25" (1/1) ... [2025-03-08 18:16:25,838 INFO L175 MemorySlicer]: Split 617 memory accesses to 5 slices as follows [257, 2, 243, 68, 47]. 42 percent of accesses are in the largest equivalence class. The 27 initializations are split as follows [0, 2, 11, 10, 4]. The 515 writes are split as follows [257, 0, 232, 4, 22]. [2025-03-08 18:16:25,838 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:25" (1/1) ... [2025-03-08 18:16:25,841 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:25" (1/1) ... [2025-03-08 18:16:25,881 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:25" (1/1) ... [2025-03-08 18:16:25,883 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:25" (1/1) ... [2025-03-08 18:16:25,888 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:25" (1/1) ... [2025-03-08 18:16:25,891 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:25" (1/1) ... [2025-03-08 18:16:25,901 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 18:16:25,902 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 18:16:25,902 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 18:16:25,902 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 18:16:25,906 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:25" (1/1) ... [2025-03-08 18:16:25,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:16:25,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:16:25,934 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 18:16:25,937 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 18:16:25,956 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-08 18:16:25,956 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-08 18:16:25,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 18:16:25,956 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-08 18:16:25,956 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-08 18:16:25,956 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr [2025-03-08 18:16:25,956 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr [2025-03-08 18:16:25,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 18:16:25,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 18:16:25,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 18:16:25,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 18:16:25,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 18:16:25,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 18:16:25,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 18:16:25,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 18:16:25,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 18:16:25,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 18:16:25,956 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-08 18:16:25,956 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-08 18:16:25,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 18:16:25,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 18:16:25,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 18:16:25,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 18:16:25,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 18:16:25,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 18:16:25,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 18:16:25,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 18:16:25,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 18:16:25,957 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_priv_xlate_order [2025-03-08 18:16:25,957 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_priv_xlate_order [2025-03-08 18:16:25,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 18:16:25,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 18:16:25,957 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 18:16:25,957 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 18:16:25,957 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-08 18:16:25,957 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-08 18:16:25,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 18:16:25,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 18:16:25,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 18:16:25,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 18:16:25,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 18:16:25,957 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr [2025-03-08 18:16:25,957 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr [2025-03-08 18:16:25,957 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 18:16:25,957 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 18:16:25,957 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_from_empty_array [2025-03-08 18:16:25,957 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_from_empty_array [2025-03-08 18:16:25,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 18:16:25,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 18:16:25,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 18:16:25,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 18:16:25,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 18:16:25,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 18:16:25,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 18:16:25,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 18:16:25,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 18:16:25,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 18:16:25,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 18:16:25,959 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_check_atomic_ptr [2025-03-08 18:16:25,959 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_check_atomic_ptr [2025-03-08 18:16:25,960 INFO L130 BoogieDeclarations]: Found specification of procedure is_front_valid_state [2025-03-08 18:16:25,960 INFO L138 BoogieDeclarations]: Found implementation of procedure is_front_valid_state [2025-03-08 18:16:25,960 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-08 18:16:25,960 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-08 18:16:25,960 INFO L130 BoogieDeclarations]: Found specification of procedure is_ends_valid_state [2025-03-08 18:16:25,960 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ends_valid_state [2025-03-08 18:16:25,960 INFO L130 BoogieDeclarations]: Found specification of procedure s_buf_belongs_to_pool [2025-03-08 18:16:25,961 INFO L138 BoogieDeclarations]: Found implementation of procedure s_buf_belongs_to_pool [2025-03-08 18:16:25,961 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-08 18:16:25,961 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-08 18:16:25,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 18:16:25,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 18:16:25,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 18:16:25,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 18:16:25,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 18:16:25,961 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr_explicit [2025-03-08 18:16:25,961 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr_explicit [2025-03-08 18:16:25,961 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_is_valid [2025-03-08 18:16:25,962 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_is_valid [2025-03-08 18:16:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure is_middle_valid_state [2025-03-08 18:16:25,962 INFO L138 BoogieDeclarations]: Found implementation of procedure is_middle_valid_state [2025-03-08 18:16:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr_explicit [2025-03-08 18:16:25,962 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr_explicit [2025-03-08 18:16:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 18:16:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 18:16:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 18:16:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 18:16:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 18:16:26,217 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 18:16:26,219 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 18:16:26,249 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-08 18:16:26,287 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8769: 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 18:16:26,288 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-08 18:16:26,290 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-08 18:16:26,349 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7345: 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 18:16:26,391 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5781: havoc #t~ret422;havoc #t~mem421.base, #t~mem421.offset; [2025-03-08 18:16:26,397 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-08 18:16:26,405 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6032: havoc #t~mem452.base, #t~mem452.offset;havoc #t~mem453.base, #t~mem453.offset;havoc #t~short454; [2025-03-08 18:16:26,418 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L9182: havoc #t~mem1357.base, #t~mem1357.offset; [2025-03-08 18:16:26,440 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5612: havoc #t~ret408.base, #t~ret408.offset; [2025-03-08 18:16:26,476 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6065: 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 18:16:26,499 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8199: 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 18:16:26,512 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L9193: havoc #t~mem1360.base, #t~mem1360.offset; [2025-03-08 18:16:33,410 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8612: havoc aws_ring_buffer_acquire_#t~ret1238#1; [2025-03-08 18:16:33,410 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8598-2: havoc aws_ring_buffer_acquire_#t~ret1229#1; [2025-03-08 18:16:33,410 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8606: havoc aws_ring_buffer_acquire_~ring_space~0#1; [2025-03-08 18:16:33,410 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8656: havoc aws_ring_buffer_acquire_#t~ret1268#1; [2025-03-08 18:16:33,574 INFO L? ?]: Removed 224 outVars from TransFormulas that were not future-live. [2025-03-08 18:16:33,574 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 18:16:33,603 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 18:16:33,603 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 18:16:33,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:16:33 BoogieIcfgContainer [2025-03-08 18:16:33,603 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 18:16:33,605 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 18:16:33,605 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 18:16:33,608 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 18:16:33,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 06:16:23" (1/3) ... [2025-03-08 18:16:33,609 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28492726 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:16:33, skipping insertion in model container [2025-03-08 18:16:33,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:25" (2/3) ... [2025-03-08 18:16:33,609 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28492726 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:16:33, skipping insertion in model container [2025-03-08 18:16:33,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:16:33" (3/3) ... [2025-03-08 18:16:33,611 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_ring_buffer_acquire_harness_negated.i [2025-03-08 18:16:33,621 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 18:16:33,622 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_ring_buffer_acquire_harness_negated.i that has 22 procedures, 413 locations, 1 initial locations, 3 loop locations, and 4 error locations. [2025-03-08 18:16:33,665 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 18:16:33,675 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;@39780a11, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 18:16:33,675 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-08 18:16:33,679 INFO L276 IsEmpty]: Start isEmpty. Operand has 413 states, 241 states have (on average 1.2199170124481329) internal successors, (294), 246 states have internal predecessors, (294), 146 states have call successors, (146), 21 states have call predecessors, (146), 21 states have return successors, (146), 146 states have call predecessors, (146), 146 states have call successors, (146) [2025-03-08 18:16:33,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-03-08 18:16:33,686 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:16:33,686 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:16:33,687 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 18:16:33,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:16:33,690 INFO L85 PathProgramCache]: Analyzing trace with hash 706301673, now seen corresponding path program 1 times [2025-03-08 18:16:33,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:16:33,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637952999] [2025-03-08 18:16:33,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:16:33,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:17:40,549 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-08 18:17:41,048 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-08 18:17:41,048 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:17:41,048 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:17:41,717 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-03-08 18:17:41,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:17:41,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637952999] [2025-03-08 18:17:41,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637952999] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:17:41,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098094389] [2025-03-08 18:17:41,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:17:41,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:17:41,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:17:41,720 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 18:17:41,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process