./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 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_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-?-8fc3dc6-m [2025-03-17 07:24:18,395 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 07:24:18,455 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-17 07:24:18,458 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 07:24:18,460 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 07:24:18,480 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 07:24:18,481 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 07:24:18,481 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 07:24:18,481 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 07:24:18,481 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 07:24:18,481 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 07:24:18,481 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 07:24:18,482 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 07:24:18,482 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 07:24:18,482 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 07:24:18,482 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 07:24:18,482 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 07:24:18,482 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 07:24:18,482 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 07:24:18,482 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 07:24:18,482 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 07:24:18,482 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 07:24:18,482 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 07:24:18,482 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 07:24:18,482 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 07:24:18,484 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 07:24:18,484 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 07:24:18,484 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 07:24:18,484 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 07:24:18,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:24:18,484 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 07:24:18,484 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 07:24:18,484 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 07:24:18,484 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 07:24:18,484 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 07:24:18,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 07:24:18,485 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 07:24:18,485 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 07:24:18,485 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 07:24:18,485 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 07:24:18,485 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 [2025-03-17 07:24:18,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 07:24:18,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 07:24:18,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 07:24:18,717 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 07:24:18,717 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 07:24:18,718 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_ring_buffer_release_harness_negated.i [2025-03-17 07:24:19,874 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7e919c28/4b20b2087af145d18608dd40a67a0442/FLAGeafe4458b [2025-03-17 07:24:20,385 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 07:24:20,386 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_ring_buffer_release_harness_negated.i [2025-03-17 07:24:20,428 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7e919c28/4b20b2087af145d18608dd40a67a0442/FLAGeafe4458b [2025-03-17 07:24:20,445 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7e919c28/4b20b2087af145d18608dd40a67a0442 [2025-03-17 07:24:20,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 07:24:20,448 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 07:24:20,450 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 07:24:20,450 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 07:24:20,454 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 07:24:20,456 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:24:20" (1/1) ... [2025-03-17 07:24:20,456 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d56b905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:20, skipping insertion in model container [2025-03-17 07:24:20,456 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:24:20" (1/1) ... [2025-03-17 07:24:20,522 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 07:24:20,758 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] [2025-03-17 07:24:20,766 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] [2025-03-17 07:24:21,295 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:21,296 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:21,296 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:21,297 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:21,298 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:21,306 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:21,306 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:21,308 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:21,308 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:21,749 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:21,750 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:21,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:24:21,908 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 07:24:21,920 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] [2025-03-17 07:24:21,921 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] [2025-03-17 07:24:21,968 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:21,969 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:21,970 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:21,970 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:21,970 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:22,009 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:22,010 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:22,010 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:22,011 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:22,136 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8237] [2025-03-17 07:24:22,138 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:22,138 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:24:22,168 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8963-8974] [2025-03-17 07:24:22,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:24:22,371 INFO L204 MainTranslator]: Completed translation [2025-03-17 07:24:22,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:22 WrapperNode [2025-03-17 07:24:22,372 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 07:24:22,373 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 07:24:22,373 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 07:24:22,373 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 07:24:22,377 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:22" (1/1) ... [2025-03-17 07:24:22,452 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:22" (1/1) ... [2025-03-17 07:24:22,518 INFO L138 Inliner]: procedures = 684, calls = 2948, calls flagged for inlining = 59, calls inlined = 9, statements flattened = 1030 [2025-03-17 07:24:22,519 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 07:24:22,519 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 07:24:22,519 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 07:24:22,519 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 07:24:22,528 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:22" (1/1) ... [2025-03-17 07:24:22,528 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:22" (1/1) ... [2025-03-17 07:24:22,539 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:22" (1/1) ... [2025-03-17 07:24:22,624 INFO L175 MemorySlicer]: Split 593 memory accesses to 6 slices as follows [2, 257, 243, 6, 49, 36]. 43 percent of accesses are in the largest equivalence class. The 31 initializations are split as follows [2, 0, 11, 4, 10, 4]. The 496 writes are split as follows [0, 257, 232, 0, 4, 3]. [2025-03-17 07:24:22,627 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:22" (1/1) ... [2025-03-17 07:24:22,628 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:22" (1/1) ... [2025-03-17 07:24:22,674 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:22" (1/1) ... [2025-03-17 07:24:22,679 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:22" (1/1) ... [2025-03-17 07:24:22,689 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:22" (1/1) ... [2025-03-17 07:24:22,697 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:22" (1/1) ... [2025-03-17 07:24:22,711 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 07:24:22,713 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 07:24:22,713 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 07:24:22,713 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 07:24:22,715 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:22" (1/1) ... [2025-03-17 07:24:22,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:24:22,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:24:22,742 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 07:24:22,749 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 07:24:22,767 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2025-03-17 07:24:22,768 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2025-03-17 07:24:22,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 07:24:22,768 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-17 07:24:22,768 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-17 07:24:22,768 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr [2025-03-17 07:24:22,768 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr [2025-03-17 07:24:22,768 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member_in_range [2025-03-17 07:24:22,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member_in_range [2025-03-17 07:24:22,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-17 07:24:22,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-17 07:24:22,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-17 07:24:22,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-17 07:24:22,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-17 07:24:22,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-17 07:24:22,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 07:24:22,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 07:24:22,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 07:24:22,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 07:24:22,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-17 07:24:22,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-17 07:24:22,769 INFO L130 BoogieDeclarations]: Found specification of procedure is_empty_state [2025-03-17 07:24:22,769 INFO L138 BoogieDeclarations]: Found implementation of procedure is_empty_state [2025-03-17 07:24:22,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 07:24:22,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 07:24:22,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 07:24:22,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 07:24:22,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 07:24:22,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 07:24:22,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 07:24:22,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 07:24:22,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-17 07:24:22,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-17 07:24:22,770 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_priv_xlate_order [2025-03-17 07:24:22,770 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_priv_xlate_order [2025-03-17 07:24:22,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 07:24:22,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 07:24:22,770 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-17 07:24:22,770 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-17 07:24:22,770 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-17 07:24:22,770 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-17 07:24:22,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-17 07:24:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-17 07:24:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-17 07:24:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-17 07:24:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-17 07:24:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-17 07:24:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr [2025-03-17 07:24:22,771 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr [2025-03-17 07:24:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-17 07:24:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-17 07:24:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-03-17 07:24:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2025-03-17 07:24:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2025-03-17 07:24:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2025-03-17 07:24:22,771 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-17 07:24:22,771 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-17 07:24:22,772 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-03-17 07:24:22,772 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2025-03-17 07:24:22,772 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2025-03-17 07:24:22,772 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2025-03-17 07:24:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 07:24:22,772 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 07:24:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 07:24:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 07:24:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 07:24:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 07:24:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-17 07:24:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-17 07:24:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-17 07:24:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-17 07:24:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-17 07:24:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-17 07:24:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-17 07:24:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-17 07:24:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-17 07:24:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_check_atomic_ptr [2025-03-17 07:24:22,773 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_check_atomic_ptr [2025-03-17 07:24:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-17 07:24:22,773 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-17 07:24:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure is_ends_valid_state [2025-03-17 07:24:22,773 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ends_valid_state [2025-03-17 07:24:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure s_buf_belongs_to_pool [2025-03-17 07:24:22,773 INFO L138 BoogieDeclarations]: Found implementation of procedure s_buf_belongs_to_pool [2025-03-17 07:24:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-17 07:24:22,773 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-17 07:24:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr_explicit [2025-03-17 07:24:22,773 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr_explicit [2025-03-17 07:24:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_is_valid [2025-03-17 07:24:22,773 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_is_valid [2025-03-17 07:24:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure is_middle_valid_state [2025-03-17 07:24:22,773 INFO L138 BoogieDeclarations]: Found implementation of procedure is_middle_valid_state [2025-03-17 07:24:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr_explicit [2025-03-17 07:24:22,774 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr_explicit [2025-03-17 07:24:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 07:24:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 07:24:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 07:24:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 07:24:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-17 07:24:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-17 07:24:23,045 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 07:24:23,047 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 07:24:23,087 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2025-03-17 07:24:23,137 INFO L1322 $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; [2025-03-17 07:24:23,139 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-17 07:24:23,141 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-17 07:24:23,206 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 07:24:23,237 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L5781: havoc #t~ret422;havoc #t~mem421.base, #t~mem421.offset; [2025-03-17 07:24:23,245 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-17 07:24:23,280 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 07:24:23,326 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L5612: havoc #t~ret408.base, #t~ret408.offset; [2025-03-17 07:24:23,364 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 07:24:23,370 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L9199: havoc #t~mem1365.base, #t~mem1365.offset; [2025-03-17 07:24:30,322 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L9188: havoc is_front_valid_state_#t~mem1362#1.base, is_front_valid_state_#t~mem1362#1.offset; [2025-03-17 07:24:30,454 INFO L? ?]: Removed 211 outVars from TransFormulas that were not future-live. [2025-03-17 07:24:30,454 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 07:24:30,475 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 07:24:30,478 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 07:24:30,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:24:30 BoogieIcfgContainer [2025-03-17 07:24:30,479 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 07:24:30,481 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 07:24:30,481 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 07:24:30,484 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 07:24:30,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:24:20" (1/3) ... [2025-03-17 07:24:30,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7279d1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:24:30, skipping insertion in model container [2025-03-17 07:24:30,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:24:22" (2/3) ... [2025-03-17 07:24:30,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7279d1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:24:30, skipping insertion in model container [2025-03-17 07:24:30,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:24:30" (3/3) ... [2025-03-17 07:24:30,489 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_ring_buffer_release_harness_negated.i [2025-03-17 07:24:30,499 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 07:24:30,500 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_ring_buffer_release_harness_negated.i that has 27 procedures, 332 locations, 1 initial locations, 9 loop locations, and 4 error locations. [2025-03-17 07:24:30,542 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 07:24:30,551 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;@4ac0cb1b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 07:24:30,551 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-17 07:24:30,557 INFO L276 IsEmpty]: Start isEmpty. Operand has 312 states, 197 states have (on average 1.2436548223350254) internal successors, (245), 201 states have internal predecessors, (245), 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) [2025-03-17 07:24:30,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-03-17 07:24:30,563 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:24:30,563 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] [2025-03-17 07:24:30,563 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 07:24:30,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:24:30,566 INFO L85 PathProgramCache]: Analyzing trace with hash -630399296, now seen corresponding path program 1 times [2025-03-17 07:24:30,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:24:30,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531748573] [2025-03-17 07:24:30,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:24:30,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:25:36,097 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-03-17 07:25:36,735 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-03-17 07:25:36,735 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:25:36,735 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:25:39,659 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-17 07:25:39,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:25:39,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531748573] [2025-03-17 07:25:39,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531748573] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:25:39,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 07:25:39,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 07:25:39,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552248406] [2025-03-17 07:25:39,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:25:39,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 07:25:39,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:25:39,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 07:25:39,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 07:25:39,681 INFO L87 Difference]: Start difference. First operand has 312 states, 197 states have (on average 1.2436548223350254) internal successors, (245), 201 states have internal predecessors, (245), 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) Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-17 07:25:40,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:25:40,398 INFO L93 Difference]: Finished difference Result 621 states and 920 transitions. [2025-03-17 07:25:40,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 07:25:40,402 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 65 [2025-03-17 07:25:40,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:25:40,411 INFO L225 Difference]: With dead ends: 621 [2025-03-17 07:25:40,411 INFO L226 Difference]: Without dead ends: 321 [2025-03-17 07:25:40,417 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-03-17 07:25:40,423 INFO L435 NwaCegarLoop]: 409 mSDtfsCounter, 15 mSDsluCounter, 1615 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2024 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-17 07:25:40,423 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2024 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-17 07:25:40,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2025-03-17 07:25:40,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2025-03-17 07:25:40,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 201 states have (on average 1.2039800995024876) internal successors, (242), 207 states have internal predecessors, (242), 91 states have call successors, (91), 22 states have call predecessors, (91), 23 states have return successors, (92), 90 states have call predecessors, (92), 90 states have call successors, (92) [2025-03-17 07:25:40,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 425 transitions. [2025-03-17 07:25:40,491 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 425 transitions. Word has length 65 [2025-03-17 07:25:40,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:25:40,492 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 425 transitions. [2025-03-17 07:25:40,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-17 07:25:40,492 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 425 transitions. [2025-03-17 07:25:40,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-03-17 07:25:40,496 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:25:40,497 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] [2025-03-17 07:25:40,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 07:25:40,497 INFO L396 AbstractCegarLoop]: === Iteration 2 === 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 07:25:40,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:25:40,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1118733540, now seen corresponding path program 1 times [2025-03-17 07:25:40,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:25:40,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770571009] [2025-03-17 07:25:40,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:25:40,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms