./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 03a4ecb9d97ec40f0475820d11aa51b1de64332112f31fd921efefefc289335b --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 17:29:04,659 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 17:29:04,729 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 17:29:04,737 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 17:29:04,737 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 17:29:04,773 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 17:29:04,774 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 17:29:04,774 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 17:29:04,775 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 17:29:04,775 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 17:29:04,775 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 17:29:04,776 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 17:29:04,777 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 17:29:04,777 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 17:29:04,777 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 17:29:04,777 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 17:29:04,777 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 17:29:04,777 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 17:29:04,777 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 17:29:04,777 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 17:29:04,777 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 17:29:04,777 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 17:29:04,777 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 17:29:04,777 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 17:29:04,777 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 17:29:04,778 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 17:29:04,778 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:29:04,778 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:29:04,778 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:29:04,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:29:04,778 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 17:29:04,778 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:29:04,778 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:29:04,778 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:29:04,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:29:04,778 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 17:29:04,778 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 17:29:04,778 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 17:29:04,779 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 17:29:04,779 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 17:29:04,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 17:29:04,779 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 17:29:04,779 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 17:29:04,779 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 17:29:04,779 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 17:29:04,779 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03a4ecb9d97ec40f0475820d11aa51b1de64332112f31fd921efefefc289335b [2025-01-09 17:29:05,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 17:29:05,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 17:29:05,055 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 17:29:05,056 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 17:29:05,056 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 17:29:05,060 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i [2025-01-09 17:29:06,227 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/36144f98a/3fb1b41e8dfd424e84d009e65b198338/FLAGeef5dd122 [2025-01-09 17:29:06,746 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 17:29:06,747 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i [2025-01-09 17:29:06,784 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/36144f98a/3fb1b41e8dfd424e84d009e65b198338/FLAGeef5dd122 [2025-01-09 17:29:07,290 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/36144f98a/3fb1b41e8dfd424e84d009e65b198338 [2025-01-09 17:29:07,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 17:29:07,293 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 17:29:07,294 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 17:29:07,294 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 17:29:07,296 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 17:29:07,297 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:29:07" (1/1) ... [2025-01-09 17:29:07,297 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1300f51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:07, skipping insertion in model container [2025-01-09 17:29:07,298 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:29:07" (1/1) ... [2025-01-09 17:29:07,351 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:29:07,563 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i[4498,4511] [2025-01-09 17:29:07,571 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i[4558,4571] [2025-01-09 17:29:08,035 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:29:08,036 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:29:08,036 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:29:08,036 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:29:08,037 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:29:08,046 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:29:08,046 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:29:08,048 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:29:08,048 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:29:08,493 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:29:08,493 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:29:08,564 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:29:08,617 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 17:29:08,626 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i[4498,4511] [2025-01-09 17:29:08,628 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_ring_buffer_clean_up_harness.i[4558,4571] [2025-01-09 17:29:08,668 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:29:08,669 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:29:08,669 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:29:08,669 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:29:08,670 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:29:08,676 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:29:08,676 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:29:08,677 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:29:08,677 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:29:08,831 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2025-01-09 17:29:08,832 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:29:08,833 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:29:08,855 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8995-9006] [2025-01-09 17:29:08,864 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:29:09,030 INFO L204 MainTranslator]: Completed translation [2025-01-09 17:29:09,031 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:09 WrapperNode [2025-01-09 17:29:09,031 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 17:29:09,032 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 17:29:09,032 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 17:29:09,032 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 17:29:09,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:09" (1/1) ... [2025-01-09 17:29:09,101 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:09" (1/1) ... [2025-01-09 17:29:09,148 INFO L138 Inliner]: procedures = 680, calls = 2872, calls flagged for inlining = 56, calls inlined = 6, statements flattened = 816 [2025-01-09 17:29:09,148 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 17:29:09,150 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 17:29:09,151 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 17:29:09,151 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 17:29:09,160 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:09" (1/1) ... [2025-01-09 17:29:09,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:09" (1/1) ... [2025-01-09 17:29:09,164 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:09" (1/1) ... [2025-01-09 17:29:09,222 INFO L175 MemorySlicer]: Split 531 memory accesses to 5 slices as follows [2, 257, 238, 6, 28]. 48 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [2, 0, 6, 5, 5]. The 494 writes are split as follows [0, 257, 232, 0, 5]. [2025-01-09 17:29:09,222 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:09" (1/1) ... [2025-01-09 17:29:09,222 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:09" (1/1) ... [2025-01-09 17:29:09,269 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:09" (1/1) ... [2025-01-09 17:29:09,271 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:09" (1/1) ... [2025-01-09 17:29:09,274 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:09" (1/1) ... [2025-01-09 17:29:09,281 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:09" (1/1) ... [2025-01-09 17:29:09,287 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:09" (1/1) ... [2025-01-09 17:29:09,301 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 17:29:09,303 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 17:29:09,303 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 17:29:09,303 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 17:29:09,305 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:09" (1/1) ... [2025-01-09 17:29:09,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:29:09,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:29:09,340 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 17:29:09,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 17:29:09,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 17:29:09,358 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr [2025-01-09 17:29:09,358 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr [2025-01-09 17:29:09,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 17:29:09,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 17:29:09,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 17:29:09,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 17:29:09,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 17:29:09,358 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 17:29:09,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 17:29:09,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 17:29:09,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 17:29:09,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 17:29:09,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 17:29:09,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 17:29:09,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 17:29:09,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 17:29:09,359 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_priv_xlate_order [2025-01-09 17:29:09,359 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_priv_xlate_order [2025-01-09 17:29:09,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 17:29:09,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 17:29:09,359 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 17:29:09,359 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 17:29:09,359 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-01-09 17:29:09,359 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-01-09 17:29:09,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 17:29:09,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 17:29:09,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 17:29:09,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 17:29:09,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 17:29:09,360 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2025-01-09 17:29:09,360 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2025-01-09 17:29:09,360 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr [2025-01-09 17:29:09,360 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr [2025-01-09 17:29:09,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-01-09 17:29:09,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-01-09 17:29:09,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-01-09 17:29:09,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2025-01-09 17:29:09,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2025-01-09 17:29:09,360 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-01-09 17:29:09,360 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-01-09 17:29:09,360 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-01-09 17:29:09,360 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2025-01-09 17:29:09,360 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2025-01-09 17:29:09,360 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 17:29:09,361 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 17:29:09,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 17:29:09,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 17:29:09,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 17:29:09,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 17:29:09,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 17:29:09,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 17:29:09,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 17:29:09,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 17:29:09,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 17:29:09,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 17:29:09,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 17:29:09,361 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_check_atomic_ptr [2025-01-09 17:29:09,361 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_check_atomic_ptr [2025-01-09 17:29:09,361 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-01-09 17:29:09,362 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-01-09 17:29:09,362 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-01-09 17:29:09,362 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-01-09 17:29:09,362 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr_explicit [2025-01-09 17:29:09,362 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr_explicit [2025-01-09 17:29:09,362 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_is_valid [2025-01-09 17:29:09,362 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_is_valid [2025-01-09 17:29:09,362 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr_explicit [2025-01-09 17:29:09,362 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr_explicit [2025-01-09 17:29:09,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 17:29:09,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 17:29:09,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 17:29:09,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 17:29:09,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 17:29:09,552 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 17:29:09,553 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 17:29:16,500 INFO L? ?]: Removed 89 outVars from TransFormulas that were not future-live. [2025-01-09 17:29:16,501 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 17:29:16,512 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 17:29:16,513 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2025-01-09 17:29:16,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:29:16 BoogieIcfgContainer [2025-01-09 17:29:16,514 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 17:29:16,519 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 17:29:16,519 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 17:29:16,522 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 17:29:16,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:29:07" (1/3) ... [2025-01-09 17:29:16,523 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5629f57d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:29:16, skipping insertion in model container [2025-01-09 17:29:16,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:29:09" (2/3) ... [2025-01-09 17:29:16,524 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5629f57d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:29:16, skipping insertion in model container [2025-01-09 17:29:16,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:29:16" (3/3) ... [2025-01-09 17:29:16,525 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_ring_buffer_clean_up_harness.i [2025-01-09 17:29:16,535 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 17:29:16,536 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_ring_buffer_clean_up_harness.i that has 20 procedures, 167 locations, 1 initial locations, 8 loop locations, and 4 error locations. [2025-01-09 17:29:16,583 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 17:29:16,600 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;@5b8c0d76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 17:29:16,600 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-01-09 17:29:16,607 INFO L276 IsEmpty]: Start isEmpty. Operand has 151 states, 99 states have (on average 1.2525252525252526) internal successors, (124), 102 states have internal predecessors, (124), 33 states have call successors, (33), 15 states have call predecessors, (33), 15 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2025-01-09 17:29:16,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2025-01-09 17:29:16,616 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:29:16,616 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-01-09 17:29:16,616 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)] === [2025-01-09 17:29:16,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:29:16,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1869245761, now seen corresponding path program 1 times [2025-01-09 17:29:16,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:29:16,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35496786] [2025-01-09 17:29:16,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:29:16,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:30:20,626 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-01-09 17:30:21,087 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-01-09 17:30:21,092 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:30:21,092 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:30:21,739 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-01-09 17:30:21,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:30:21,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35496786] [2025-01-09 17:30:21,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35496786] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:30:21,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769983219] [2025-01-09 17:30:21,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:30:21,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:30:21,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:30:21,744 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 17:30:21,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process