./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 798a7b37 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_release_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 8d16217b02ecd6e481b32d24ab08e27bf0c28fb8762abe433cdf4ba726b5e322 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 03:05:48,162 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 03:05:48,214 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 03:05:48,220 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 03:05:48,220 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 03:05:48,238 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 03:05:48,238 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 03:05:48,239 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 03:05:48,239 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 03:05:48,239 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 03:05:48,239 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 03:05:48,239 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 03:05:48,240 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 03:05:48,240 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 03:05:48,240 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 03:05:48,241 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 03:05:48,241 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 03:05:48,241 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 03:05:48,241 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 03:05:48,241 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 03:05:48,241 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 03:05:48,241 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 03:05:48,242 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 03:05:48,242 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 03:05:48,242 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 03:05:48,242 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 03:05:48,242 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 03:05:48,242 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 03:05:48,242 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 03:05:48,242 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 03:05:48,242 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 03:05:48,242 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 03:05:48,242 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 03:05:48,242 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 03:05:48,242 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 03:05:48,242 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 03:05:48,242 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 03:05:48,242 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 03:05:48,242 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 03:05:48,243 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 03:05:48,243 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 -> 8d16217b02ecd6e481b32d24ab08e27bf0c28fb8762abe433cdf4ba726b5e322 [2025-03-04 03:05:48,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 03:05:48,493 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 03:05:48,495 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 03:05:48,497 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 03:05:48,497 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 03:05:48,498 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_ring_buffer_release_harness_negated.i [2025-03-04 03:05:49,672 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf3220997/31e45db10cd04d81a328e6a6888fafe9/FLAG454aed53c [2025-03-04 03:05:50,193 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 03:05:50,195 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_ring_buffer_release_harness_negated.i [2025-03-04 03:05:50,233 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf3220997/31e45db10cd04d81a328e6a6888fafe9/FLAG454aed53c [2025-03-04 03:05:50,257 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf3220997/31e45db10cd04d81a328e6a6888fafe9 [2025-03-04 03:05:50,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 03:05:50,260 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 03:05:50,261 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 03:05:50,261 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 03:05:50,265 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 03:05:50,265 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:05:50" (1/1) ... [2025-03-04 03:05:50,267 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71396a3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:05:50, skipping insertion in model container [2025-03-04 03:05:50,267 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:05:50" (1/1) ... [2025-03-04 03:05:50,324 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 03:05:50,527 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_release_harness_negated.i[4497,4510] [2025-03-04 03:05:50,534 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_release_harness_negated.i[4557,4570] [2025-03-04 03:05:51,106 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:05:51,107 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:05:51,111 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:05:51,111 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:05:51,112 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:05:51,126 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:05:51,128 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:05:51,129 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:05:51,130 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:05:51,635 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:05:51,636 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:05:51,761 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 03:05:51,800 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 03:05:51,813 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_release_harness_negated.i[4497,4510] [2025-03-04 03:05:51,813 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_release_harness_negated.i[4557,4570] [2025-03-04 03:05:51,849 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:05:51,850 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:05:51,850 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:05:51,851 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:05:51,851 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:05:51,855 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:05:51,856 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:05:51,856 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:05:51,857 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:05:51,934 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8237] [2025-03-04 03:05:51,936 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:05:51,936 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:05:51,957 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8963-8974] [2025-03-04 03:05:51,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 03:05:52,151 INFO L204 MainTranslator]: Completed translation [2025-03-04 03:05:52,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:05:52 WrapperNode [2025-03-04 03:05:52,152 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 03:05:52,152 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 03:05:52,152 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 03:05:52,152 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 03:05:52,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:05:52" (1/1) ... [2025-03-04 03:05:52,228 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:05:52" (1/1) ... [2025-03-04 03:05:52,293 INFO L138 Inliner]: procedures = 684, calls = 2948, calls flagged for inlining = 59, calls inlined = 9, statements flattened = 1030 [2025-03-04 03:05:52,293 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 03:05:52,294 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 03:05:52,294 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 03:05:52,294 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 03:05:52,303 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:05:52" (1/1) ... [2025-03-04 03:05:52,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:05:52" (1/1) ... [2025-03-04 03:05:52,311 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:05:52" (1/1) ... [2025-03-04 03:05:52,388 INFO L175 MemorySlicer]: Split 593 memory accesses to 6 slices as follows [2, 257, 36, 6, 243, 49]. 43 percent of accesses are in the largest equivalence class. The 31 initializations are split as follows [2, 0, 4, 4, 11, 10]. The 496 writes are split as follows [0, 257, 3, 0, 232, 4]. [2025-03-04 03:05:52,389 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:05:52" (1/1) ... [2025-03-04 03:05:52,389 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:05:52" (1/1) ... [2025-03-04 03:05:52,426 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:05:52" (1/1) ... [2025-03-04 03:05:52,432 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:05:52" (1/1) ... [2025-03-04 03:05:52,441 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:05:52" (1/1) ... [2025-03-04 03:05:52,445 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:05:52" (1/1) ... [2025-03-04 03:05:52,462 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 03:05:52,463 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 03:05:52,463 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 03:05:52,463 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 03:05:52,467 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:05:52" (1/1) ... [2025-03-04 03:05:52,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 03:05:52,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:05:52,501 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) [2025-03-04 03:05:52,528 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 [2025-03-04 03:05:52,556 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-04 03:05:52,557 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-04 03:05:52,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 03:05:52,557 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-04 03:05:52,557 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-04 03:05:52,557 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr [2025-03-04 03:05:52,557 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr [2025-03-04 03:05:52,557 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member_in_range [2025-03-04 03:05:52,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member_in_range [2025-03-04 03:05:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 03:05:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 03:05:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 03:05:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 03:05:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 03:05:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-04 03:05:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 03:05:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 03:05:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 03:05:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 03:05:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 03:05:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-04 03:05:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure is_empty_state [2025-03-04 03:05:52,559 INFO L138 BoogieDeclarations]: Found implementation of procedure is_empty_state [2025-03-04 03:05:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 03:05:52,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 03:05:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 03:05:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 03:05:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 03:05:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 03:05:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 03:05:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 03:05:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 03:05:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-04 03:05:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_priv_xlate_order [2025-03-04 03:05:52,559 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_priv_xlate_order [2025-03-04 03:05:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 03:05:52,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 03:05:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 03:05:52,559 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 03:05:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-04 03:05:52,560 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-04 03:05:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 03:05:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 03:05:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 03:05:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 03:05:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 03:05:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-04 03:05:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr [2025-03-04 03:05:52,560 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr [2025-03-04 03:05:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-04 03:05:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-04 03:05:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-03-04 03:05:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2025-03-04 03:05:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2025-03-04 03:05:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2025-03-04 03:05:52,560 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-04 03:05:52,560 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-04 03:05:52,560 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-03-04 03:05:52,560 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2025-03-04 03:05:52,560 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2025-03-04 03:05:52,560 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2025-03-04 03:05:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 03:05:52,563 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 03:05:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 03:05:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 03:05:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 03:05:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 03:05:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 03:05:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 03:05:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-04 03:05:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 03:05:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 03:05:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 03:05:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 03:05:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 03:05:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-04 03:05:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_check_atomic_ptr [2025-03-04 03:05:52,564 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_check_atomic_ptr [2025-03-04 03:05:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-04 03:05:52,564 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-04 03:05:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure is_ends_valid_state [2025-03-04 03:05:52,564 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ends_valid_state [2025-03-04 03:05:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure s_buf_belongs_to_pool [2025-03-04 03:05:52,564 INFO L138 BoogieDeclarations]: Found implementation of procedure s_buf_belongs_to_pool [2025-03-04 03:05:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-04 03:05:52,564 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-04 03:05:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr_explicit [2025-03-04 03:05:52,564 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr_explicit [2025-03-04 03:05:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_is_valid [2025-03-04 03:05:52,564 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_is_valid [2025-03-04 03:05:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure is_middle_valid_state [2025-03-04 03:05:52,565 INFO L138 BoogieDeclarations]: Found implementation of procedure is_middle_valid_state [2025-03-04 03:05:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr_explicit [2025-03-04 03:05:52,565 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr_explicit [2025-03-04 03:05:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 03:05:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 03:05:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 03:05:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 03:05:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 03:05:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-04 03:05:52,860 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 03:05:52,862 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 03:05:52,897 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-04 03:05:52,975 INFO L1325 $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; [2025-03-04 03:05:52,977 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-04 03:05:52,979 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-04 03:05:53,041 INFO L1325 $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; [2025-03-04 03:05:53,084 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L5781: havoc #t~ret422;havoc #t~mem421.base, #t~mem421.offset; [2025-03-04 03:05:53,089 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-04 03:05:53,120 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6032: havoc #t~mem452.base, #t~mem452.offset;havoc #t~mem453.base, #t~mem453.offset;havoc #t~short454; [2025-03-04 03:05:53,171 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L5612: havoc #t~ret408.base, #t~ret408.offset; [2025-03-04 03:05:53,223 INFO L1325 $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; [2025-03-04 03:05:53,231 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L9199: havoc #t~mem1365.base, #t~mem1365.offset; [2025-03-04 03:06:00,583 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L9188: havoc is_front_valid_state_#t~mem1362#1.base, is_front_valid_state_#t~mem1362#1.offset; [2025-03-04 03:06:00,721 INFO L? ?]: Removed 218 outVars from TransFormulas that were not future-live. [2025-03-04 03:06:00,721 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 03:06:00,745 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 03:06:00,746 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 03:06:00,746 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:06:00 BoogieIcfgContainer [2025-03-04 03:06:00,746 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 03:06:00,748 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 03:06:00,748 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 03:06:00,752 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 03:06:00,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 03:05:50" (1/3) ... [2025-03-04 03:06:00,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@103fd661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:06:00, skipping insertion in model container [2025-03-04 03:06:00,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:05:52" (2/3) ... [2025-03-04 03:06:00,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@103fd661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:06:00, skipping insertion in model container [2025-03-04 03:06:00,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:06:00" (3/3) ... [2025-03-04 03:06:00,755 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_ring_buffer_release_harness_negated.i [2025-03-04 03:06:00,767 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 03:06:00,769 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_ring_buffer_release_harness_negated.i that has 27 procedures, 339 locations, 1 initial locations, 9 loop locations, and 4 error locations. [2025-03-04 03:06:00,817 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 03:06:00,826 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;@7cf3ea31, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 03:06:00,827 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-04 03:06:00,831 INFO L276 IsEmpty]: Start isEmpty. Operand has 319 states, 204 states have (on average 1.2352941176470589) internal successors, (252), 208 states have internal predecessors, (252), 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) [2025-03-04 03:06:00,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-03-04 03:06:00,837 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:06:00,837 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] [2025-03-04 03:06:00,838 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)] === [2025-03-04 03:06:00,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:06:00,841 INFO L85 PathProgramCache]: Analyzing trace with hash -814411877, now seen corresponding path program 1 times [2025-03-04 03:06:00,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:06:00,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265372109] [2025-03-04 03:06:00,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:06:00,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 03:07:09,267 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-03-04 03:07:09,846 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-03-04 03:07:09,847 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:07:09,847 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:07:10,609 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-03-04 03:07:10,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 03:07:10,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265372109] [2025-03-04 03:07:10,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265372109] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 03:07:10,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970291674] [2025-03-04 03:07:10,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:07:10,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 03:07:10,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:07:10,613 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) [2025-03-04 03:07:10,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process