./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_ring_buffer_release_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d 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_release_harness_negated.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8d16217b02ecd6e481b32d24ab08e27bf0c28fb8762abe433cdf4ba726b5e322 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:59:34,024 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:59:34,087 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-08 01:59:34,093 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:59:34,094 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:59:34,115 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:59:34,117 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:59:34,117 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:59:34,117 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:59:34,118 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:59:34,118 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:59:34,118 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:59:34,118 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:59:34,118 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:59:34,119 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:59:34,119 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:59:34,120 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:59:34,120 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:59:34,120 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:59:34,120 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:59:34,120 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:59:34,120 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:59:34,120 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:59:34,120 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:59:34,120 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:59:34,120 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:59:34,120 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:59:34,120 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:59:34,120 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:59:34,120 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:59:34,120 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:59:34,120 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:59:34,120 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:59:34,120 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:59:34,121 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:59:34,121 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:59:34,121 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:59:34,121 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:59:34,122 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:59:34,122 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:59:34,122 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 ! 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 -> 8d16217b02ecd6e481b32d24ab08e27bf0c28fb8762abe433cdf4ba726b5e322 [2025-02-08 01:59:34,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:59:34,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:59:34,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:59:34,360 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:59:34,360 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:59:34,362 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_ring_buffer_release_harness_negated.i [2025-02-08 01:59:35,622 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/defbcf1fe/b2f30c7455e14c2fa582a8fc299e1699/FLAGccb0f933f [2025-02-08 01:59:36,075 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:59:36,077 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_ring_buffer_release_harness_negated.i [2025-02-08 01:59:36,115 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/defbcf1fe/b2f30c7455e14c2fa582a8fc299e1699/FLAGccb0f933f [2025-02-08 01:59:36,126 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/defbcf1fe/b2f30c7455e14c2fa582a8fc299e1699 [2025-02-08 01:59:36,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:59:36,128 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:59:36,129 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:59:36,129 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:59:36,132 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:59:36,132 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:59:36" (1/1) ... [2025-02-08 01:59:36,133 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ba71d5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:36, skipping insertion in model container [2025-02-08 01:59:36,133 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:59:36" (1/1) ... [2025-02-08 01:59:36,217 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:59:36,408 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_ring_buffer_release_harness_negated.i[4497,4510] [2025-02-08 01:59:36,417 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_ring_buffer_release_harness_negated.i[4557,4570] [2025-02-08 01:59:36,926 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:36,927 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:36,927 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:36,927 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:36,928 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:36,936 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:36,937 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:36,938 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:36,938 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:37,349 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:37,350 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:37,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:59:37,500 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:59:37,510 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_ring_buffer_release_harness_negated.i[4497,4510] [2025-02-08 01:59:37,512 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_ring_buffer_release_harness_negated.i[4557,4570] [2025-02-08 01:59:37,573 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:37,573 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:37,573 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:37,574 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:37,574 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:37,578 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:37,578 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:37,578 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:37,579 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:37,663 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8237] [2025-02-08 01:59:37,665 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:37,665 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:37,680 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8963-8974] [2025-02-08 01:59:37,689 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:59:37,877 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:59:37,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:37 WrapperNode [2025-02-08 01:59:37,878 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:59:37,878 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:59:37,878 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:59:37,878 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:59:37,882 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:37" (1/1) ... [2025-02-08 01:59:37,935 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:37" (1/1) ... [2025-02-08 01:59:38,004 INFO L138 Inliner]: procedures = 684, calls = 2948, calls flagged for inlining = 59, calls inlined = 9, statements flattened = 1030 [2025-02-08 01:59:38,007 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:59:38,008 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:59:38,008 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:59:38,008 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:59:38,018 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:37" (1/1) ... [2025-02-08 01:59:38,019 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:37" (1/1) ... [2025-02-08 01:59:38,028 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:37" (1/1) ... [2025-02-08 01:59:38,100 INFO L175 MemorySlicer]: Split 593 memory accesses to 6 slices as follows [2, 257, 36, 6, 49, 243]. 43 percent of accesses are in the largest equivalence class. The 31 initializations are split as follows [2, 0, 4, 4, 10, 11]. The 496 writes are split as follows [0, 257, 3, 0, 4, 232]. [2025-02-08 01:59:38,101 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:37" (1/1) ... [2025-02-08 01:59:38,103 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:37" (1/1) ... [2025-02-08 01:59:38,156 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:37" (1/1) ... [2025-02-08 01:59:38,162 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:37" (1/1) ... [2025-02-08 01:59:38,173 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:37" (1/1) ... [2025-02-08 01:59:38,175 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:37" (1/1) ... [2025-02-08 01:59:38,182 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:59:38,185 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:59:38,185 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:59:38,185 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:59:38,186 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:37" (1/1) ... [2025-02-08 01:59:38,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:59:38,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:59:38,218 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) [2025-02-08 01:59:38,220 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 [2025-02-08 01:59:38,238 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-02-08 01:59:38,239 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-02-08 01:59:38,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 01:59:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-08 01:59:38,240 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-08 01:59:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr [2025-02-08 01:59:38,240 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr [2025-02-08 01:59:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member_in_range [2025-02-08 01:59:38,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member_in_range [2025-02-08 01:59:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-08 01:59:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-08 01:59:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-08 01:59:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-08 01:59:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-08 01:59:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-08 01:59:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 01:59:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 01:59:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 01:59:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 01:59:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-08 01:59:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-08 01:59:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure is_empty_state [2025-02-08 01:59:38,242 INFO L138 BoogieDeclarations]: Found implementation of procedure is_empty_state [2025-02-08 01:59:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 01:59:38,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 01:59:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 01:59:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:59:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 01:59:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 01:59:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 01:59:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-08 01:59:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-08 01:59:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-08 01:59:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_priv_xlate_order [2025-02-08 01:59:38,242 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_priv_xlate_order [2025-02-08 01:59:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:59:38,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:59:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-08 01:59:38,242 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-08 01:59:38,243 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-02-08 01:59:38,243 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-02-08 01:59:38,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-08 01:59:38,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-08 01:59:38,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-08 01:59:38,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-08 01:59:38,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-08 01:59:38,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-08 01:59:38,244 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr [2025-02-08 01:59:38,244 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr [2025-02-08 01:59:38,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-08 01:59:38,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-08 01:59:38,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-02-08 01:59:38,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2025-02-08 01:59:38,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2025-02-08 01:59:38,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2025-02-08 01:59:38,244 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-08 01:59:38,244 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-08 01:59:38,244 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-02-08 01:59:38,244 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2025-02-08 01:59:38,245 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2025-02-08 01:59:38,245 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2025-02-08 01:59:38,245 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-08 01:59:38,245 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-08 01:59:38,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 01:59:38,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 01:59:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 01:59:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 01:59:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-08 01:59:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-08 01:59:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-08 01:59:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 01:59:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 01:59:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-08 01:59:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-08 01:59:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-08 01:59:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-08 01:59:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_check_atomic_ptr [2025-02-08 01:59:38,246 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_check_atomic_ptr [2025-02-08 01:59:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-08 01:59:38,246 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-08 01:59:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure is_ends_valid_state [2025-02-08 01:59:38,246 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ends_valid_state [2025-02-08 01:59:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure s_buf_belongs_to_pool [2025-02-08 01:59:38,246 INFO L138 BoogieDeclarations]: Found implementation of procedure s_buf_belongs_to_pool [2025-02-08 01:59:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-02-08 01:59:38,246 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-02-08 01:59:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr_explicit [2025-02-08 01:59:38,246 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr_explicit [2025-02-08 01:59:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_is_valid [2025-02-08 01:59:38,246 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_is_valid [2025-02-08 01:59:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure is_middle_valid_state [2025-02-08 01:59:38,246 INFO L138 BoogieDeclarations]: Found implementation of procedure is_middle_valid_state [2025-02-08 01:59:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr_explicit [2025-02-08 01:59:38,246 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr_explicit [2025-02-08 01:59:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:59:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:59:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 01:59:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 01:59:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-08 01:59:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-08 01:59:38,533 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:59:38,535 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:59:38,581 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2025-02-08 01:59:38,642 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L8775: 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~short1333;havoc #t~mem1334.base, #t~mem1334.offset;havoc #t~mem1335.base, #t~mem1335.offset;havoc #t~short1336;havoc #t~mem1337.base, #t~mem1337.offset;havoc #t~mem1338;havoc #t~mem1339.base, #t~mem1339.offset;havoc #t~short1340; [2025-02-08 01:59:38,644 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-02-08 01:59:38,646 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-02-08 01:59:38,721 INFO L1324 $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; [2025-02-08 01:59:38,747 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L5781: havoc #t~ret422;havoc #t~mem421.base, #t~mem421.offset; [2025-02-08 01:59:38,753 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-08 01:59:38,787 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6032: havoc #t~mem452.base, #t~mem452.offset;havoc #t~mem453.base, #t~mem453.offset;havoc #t~short454; [2025-02-08 01:59:38,846 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L5612: havoc #t~ret408.base, #t~ret408.offset; [2025-02-08 01:59:38,907 INFO L1324 $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; [2025-02-08 01:59:38,916 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L9199: havoc #t~mem1365.base, #t~mem1365.offset; [2025-02-08 01:59:45,985 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L9188: havoc is_front_valid_state_#t~mem1362#1.base, is_front_valid_state_#t~mem1362#1.offset; [2025-02-08 01:59:46,158 INFO L? ?]: Removed 211 outVars from TransFormulas that were not future-live. [2025-02-08 01:59:46,158 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:59:46,182 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:59:46,182 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:59:46,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:59:46 BoogieIcfgContainer [2025-02-08 01:59:46,183 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:59:46,187 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:59:46,187 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:59:46,190 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:59:46,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:59:36" (1/3) ... [2025-02-08 01:59:46,191 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46d84776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:59:46, skipping insertion in model container [2025-02-08 01:59:46,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:37" (2/3) ... [2025-02-08 01:59:46,192 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46d84776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:59:46, skipping insertion in model container [2025-02-08 01:59:46,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:59:46" (3/3) ... [2025-02-08 01:59:46,193 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_ring_buffer_release_harness_negated.i [2025-02-08 01:59:46,204 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:59:46,205 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_ring_buffer_release_harness_negated.i that has 27 procedures, 335 locations, 1 initial locations, 9 loop locations, and 4 error locations. [2025-02-08 01:59:46,254 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:59:46,261 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;@2a951bd1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:59:46,261 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-08 01:59:46,264 INFO L276 IsEmpty]: Start isEmpty. Operand has 315 states, 199 states have (on average 1.2462311557788945) internal successors, (248), 204 states have internal predecessors, (248), 90 states have call successors, (90), 21 states have call predecessors, (90), 21 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2025-02-08 01:59:46,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-02-08 01:59:46,269 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:59:46,270 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-02-08 01:59:46,270 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)] === [2025-02-08 01:59:46,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:59:46,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1031715612, now seen corresponding path program 1 times [2025-02-08 01:59:46,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:59:46,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874976005] [2025-02-08 01:59:46,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:59:46,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 02:00:57,775 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-02-08 02:00:58,293 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-02-08 02:00:58,294 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 02:00:58,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 02:00:59,044 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-02-08 02:00:59,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 02:00:59,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874976005] [2025-02-08 02:00:59,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874976005] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 02:00:59,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493799445] [2025-02-08 02:00:59,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 02:00:59,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 02:00:59,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 02:00:59,049 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) [2025-02-08 02:00:59,052 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