./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 8fc3dc66 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-?-8fc3dc6-m [2025-03-17 07:23:15,034 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 07:23:15,087 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-17 07:23:15,091 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 07:23:15,095 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 07:23:15,118 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 07:23:15,121 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 07:23:15,122 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 07:23:15,122 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 07:23:15,123 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 07:23:15,123 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 07:23:15,123 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 07:23:15,124 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 07:23:15,124 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 07:23:15,124 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 07:23:15,124 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 07:23:15,124 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 07:23:15,124 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 07:23:15,124 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 07:23:15,124 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 07:23:15,124 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 07:23:15,124 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 07:23:15,124 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 07:23:15,124 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 07:23:15,124 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 07:23:15,124 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 07:23:15,124 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 07:23:15,124 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 07:23:15,124 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 07:23:15,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:23:15,125 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 07:23:15,125 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 07:23:15,125 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 07:23:15,125 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 07:23:15,125 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 07:23:15,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 07:23:15,125 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 07:23:15,125 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 07:23:15,125 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 07:23:15,125 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 07:23:15,125 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 [2025-03-17 07:23:15,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 07:23:15,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 07:23:15,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 07:23:15,384 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 07:23:15,384 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 07:23:15,385 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_harness_negated.i [2025-03-17 07:23:16,513 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b366cb04/101bbbaced634155899fee085080104c/FLAG7fec2a4ee [2025-03-17 07:23:16,982 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 07:23:16,982 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_harness_negated.i [2025-03-17 07:23:17,020 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b366cb04/101bbbaced634155899fee085080104c/FLAG7fec2a4ee [2025-03-17 07:23:17,070 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b366cb04/101bbbaced634155899fee085080104c [2025-03-17 07:23:17,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 07:23:17,073 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 07:23:17,074 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 07:23:17,075 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 07:23:17,078 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 07:23:17,078 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:23:17" (1/1) ... [2025-03-17 07:23:17,079 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a1d70a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:23:17, skipping insertion in model container [2025-03-17 07:23:17,079 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:23:17" (1/1) ... [2025-03-17 07:23:17,141 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 07:23:17,308 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] [2025-03-17 07:23:17,315 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] [2025-03-17 07:23:17,769 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:17,770 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:17,772 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:17,772 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:17,773 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:17,782 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:17,783 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:17,784 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:17,784 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:18,172 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:18,172 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:18,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:23:18,287 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 07:23:18,298 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] [2025-03-17 07:23:18,302 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] [2025-03-17 07:23:18,345 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:18,345 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:18,345 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:18,346 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:18,346 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:18,388 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:18,388 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:18,389 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:18,390 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:18,474 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8237] [2025-03-17 07:23:18,476 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:18,476 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:23:18,497 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8957-8968] [2025-03-17 07:23:18,513 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:23:18,680 INFO L204 MainTranslator]: Completed translation [2025-03-17 07:23:18,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:23:18 WrapperNode [2025-03-17 07:23:18,681 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 07:23:18,682 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 07:23:18,682 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 07:23:18,682 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 07:23:18,687 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:23:18" (1/1) ... [2025-03-17 07:23:18,755 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:23:18" (1/1) ... [2025-03-17 07:23:18,818 INFO L138 Inliner]: procedures = 684, calls = 2943, calls flagged for inlining = 61, calls inlined = 12, statements flattened = 1207 [2025-03-17 07:23:18,819 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 07:23:18,820 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 07:23:18,820 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 07:23:18,821 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 07:23:18,828 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:23:18" (1/1) ... [2025-03-17 07:23:18,828 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:23:18" (1/1) ... [2025-03-17 07:23:18,836 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:23:18" (1/1) ... [2025-03-17 07:23:18,921 INFO L175 MemorySlicer]: Split 617 memory accesses to 5 slices as follows [2, 257, 47, 243, 68]. 42 percent of accesses are in the largest equivalence class. The 27 initializations are split as follows [2, 0, 4, 11, 10]. The 515 writes are split as follows [0, 257, 22, 232, 4]. [2025-03-17 07:23:18,922 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:23:18" (1/1) ... [2025-03-17 07:23:18,922 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:23:18" (1/1) ... [2025-03-17 07:23:18,967 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:23:18" (1/1) ... [2025-03-17 07:23:18,970 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:23:18" (1/1) ... [2025-03-17 07:23:18,979 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:23:18" (1/1) ... [2025-03-17 07:23:18,986 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:23:18" (1/1) ... [2025-03-17 07:23:19,000 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 07:23:19,002 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 07:23:19,002 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 07:23:19,002 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 07:23:19,003 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:23:18" (1/1) ... [2025-03-17 07:23:19,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:23:19,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:23:19,028 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) [2025-03-17 07:23:19,030 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 [2025-03-17 07:23:19,049 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-17 07:23:19,050 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-17 07:23:19,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 07:23:19,050 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-17 07:23:19,050 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-17 07:23:19,051 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr [2025-03-17 07:23:19,051 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr [2025-03-17 07:23:19,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-17 07:23:19,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-17 07:23:19,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-17 07:23:19,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-17 07:23:19,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-17 07:23:19,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 07:23:19,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 07:23:19,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 07:23:19,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 07:23:19,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-17 07:23:19,051 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-17 07:23:19,052 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-17 07:23:19,052 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 07:23:19,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 07:23:19,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 07:23:19,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 07:23:19,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 07:23:19,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 07:23:19,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 07:23:19,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 07:23:19,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-17 07:23:19,053 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_priv_xlate_order [2025-03-17 07:23:19,053 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_priv_xlate_order [2025-03-17 07:23:19,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 07:23:19,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 07:23:19,053 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-17 07:23:19,053 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-17 07:23:19,053 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-17 07:23:19,053 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-17 07:23:19,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-17 07:23:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-17 07:23:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-17 07:23:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-17 07:23:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-17 07:23:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr [2025-03-17 07:23:19,054 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr [2025-03-17 07:23:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 07:23:19,054 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 07:23:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_from_empty_array [2025-03-17 07:23:19,054 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_from_empty_array [2025-03-17 07:23:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 07:23:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 07:23:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 07:23:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 07:23:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-17 07:23:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-17 07:23:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-17 07:23:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-17 07:23:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-17 07:23:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-17 07:23:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-17 07:23:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_check_atomic_ptr [2025-03-17 07:23:19,054 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_check_atomic_ptr [2025-03-17 07:23:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure is_front_valid_state [2025-03-17 07:23:19,054 INFO L138 BoogieDeclarations]: Found implementation of procedure is_front_valid_state [2025-03-17 07:23:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-17 07:23:19,054 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-17 07:23:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure is_ends_valid_state [2025-03-17 07:23:19,054 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ends_valid_state [2025-03-17 07:23:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure s_buf_belongs_to_pool [2025-03-17 07:23:19,054 INFO L138 BoogieDeclarations]: Found implementation of procedure s_buf_belongs_to_pool [2025-03-17 07:23:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-17 07:23:19,054 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-17 07:23:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 07:23:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 07:23:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 07:23:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 07:23:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-17 07:23:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr_explicit [2025-03-17 07:23:19,054 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr_explicit [2025-03-17 07:23:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_is_valid [2025-03-17 07:23:19,054 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_is_valid [2025-03-17 07:23:19,055 INFO L130 BoogieDeclarations]: Found specification of procedure is_middle_valid_state [2025-03-17 07:23:19,055 INFO L138 BoogieDeclarations]: Found implementation of procedure is_middle_valid_state [2025-03-17 07:23:19,055 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr_explicit [2025-03-17 07:23:19,055 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr_explicit [2025-03-17 07:23:19,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 07:23:19,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 07:23:19,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 07:23:19,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 07:23:19,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-17 07:23:19,328 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 07:23:19,330 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 07:23:19,381 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-17 07:23:19,438 INFO L1322 $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; [2025-03-17 07:23:19,440 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-17 07:23:19,441 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-17 07:23:19,518 INFO L1322 $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; [2025-03-17 07:23:19,543 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L5781: havoc #t~ret422;havoc #t~mem421.base, #t~mem421.offset; [2025-03-17 07:23:19,551 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-17 07:23:19,559 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6032: havoc #t~mem452.base, #t~mem452.offset;havoc #t~mem453.base, #t~mem453.offset;havoc #t~short454; [2025-03-17 07:23:19,577 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L9182: havoc #t~mem1357.base, #t~mem1357.offset; [2025-03-17 07:23:19,600 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L5612: havoc #t~ret408.base, #t~ret408.offset; [2025-03-17 07:23:19,639 INFO L1322 $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; [2025-03-17 07:23:19,660 INFO L1322 $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; [2025-03-17 07:23:19,669 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L9193: havoc #t~mem1360.base, #t~mem1360.offset; [2025-03-17 07:23:26,533 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8612: havoc aws_ring_buffer_acquire_#t~ret1238#1; [2025-03-17 07:23:26,533 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8598-2: havoc aws_ring_buffer_acquire_#t~ret1229#1; [2025-03-17 07:23:26,533 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8606: havoc aws_ring_buffer_acquire_~ring_space~0#1; [2025-03-17 07:23:26,533 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L8656: havoc aws_ring_buffer_acquire_#t~ret1268#1; [2025-03-17 07:23:26,672 INFO L? ?]: Removed 208 outVars from TransFormulas that were not future-live. [2025-03-17 07:23:26,672 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 07:23:26,702 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 07:23:26,705 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 07:23:26,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:23:26 BoogieIcfgContainer [2025-03-17 07:23:26,706 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 07:23:26,708 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 07:23:26,709 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 07:23:26,713 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 07:23:26,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:23:17" (1/3) ... [2025-03-17 07:23:26,713 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@544476c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:23:26, skipping insertion in model container [2025-03-17 07:23:26,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:23:18" (2/3) ... [2025-03-17 07:23:26,714 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@544476c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:23:26, skipping insertion in model container [2025-03-17 07:23:26,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:23:26" (3/3) ... [2025-03-17 07:23:26,715 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_ring_buffer_acquire_harness_negated.i [2025-03-17 07:23:26,727 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 07:23:26,728 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_ring_buffer_acquire_harness_negated.i that has 22 procedures, 403 locations, 1 initial locations, 3 loop locations, and 4 error locations. [2025-03-17 07:23:26,782 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 07:23:26,790 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;@3d4d29cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 07:23:26,791 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-17 07:23:26,795 INFO L276 IsEmpty]: Start isEmpty. Operand has 403 states, 231 states have (on average 1.2294372294372293) internal successors, (284), 236 states have internal predecessors, (284), 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) [2025-03-17 07:23:26,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-03-17 07:23:26,800 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:23:26,801 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] [2025-03-17 07:23:26,801 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)] === [2025-03-17 07:23:26,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:23:26,805 INFO L85 PathProgramCache]: Analyzing trace with hash -704481798, now seen corresponding path program 1 times [2025-03-17 07:23:26,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:23:26,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805419784] [2025-03-17 07:23:26,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:23:26,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:24:36,009 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-17 07:24:36,532 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-17 07:24:36,532 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:24:36,532 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:24:37,244 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-03-17 07:24:37,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:24:37,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805419784] [2025-03-17 07:24:37,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805419784] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 07:24:37,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130839773] [2025-03-17 07:24:37,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:24:37,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 07:24:37,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:24:37,248 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) [2025-03-17 07:24:37,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process