./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_up_to_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b526b3-0aed-4cb0-a654-72481a9b5177/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b526b3-0aed-4cb0-a654-72481a9b5177/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b526b3-0aed-4cb0-a654-72481a9b5177/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b526b3-0aed-4cb0-a654-72481a9b5177/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_up_to_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b526b3-0aed-4cb0-a654-72481a9b5177/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b526b3-0aed-4cb0-a654-72481a9b5177/bin/uautomizer-verify-84ZbGMXZE1 --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 30b65818a1a5f98b95f4d6debf739e0d8660272b87140bdcdb24cc42ca73261b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:01:55,188 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:01:55,238 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b526b3-0aed-4cb0-a654-72481a9b5177/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 11:01:55,243 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:01:55,243 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:01:55,263 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:01:55,263 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:01:55,264 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:01:55,264 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:01:55,264 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:01:55,264 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:01:55,264 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:01:55,265 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:01:55,265 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:01:55,265 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:01:55,265 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:01:55,265 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:01:55,265 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:01:55,265 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:01:55,265 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:01:55,265 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:01:55,266 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:01:55,266 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:01:55,266 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:01:55,266 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:01:55,266 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:01:55,266 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:01:55,266 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:01:55,266 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:01:55,266 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:01:55,267 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:01:55,267 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:01:55,267 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:01:55,267 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:01:55,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:01:55,267 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:01:55,267 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:01:55,267 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:01:55,267 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:01:55,267 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:01:55,268 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:01:55,268 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:01:55,268 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:01:55,268 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:01:55,268 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:01:55,268 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b526b3-0aed-4cb0-a654-72481a9b5177/bin/uautomizer-verify-84ZbGMXZE1 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 -> 30b65818a1a5f98b95f4d6debf739e0d8660272b87140bdcdb24cc42ca73261b [2024-12-02 11:01:55,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:01:55,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:01:55,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:01:55,505 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:01:55,505 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:01:55,506 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b526b3-0aed-4cb0-a654-72481a9b5177/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_up_to_harness_negated.i [2024-12-02 11:01:58,136 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b526b3-0aed-4cb0-a654-72481a9b5177/bin/uautomizer-verify-84ZbGMXZE1/data/fdc211423/59444eca8f6c4c259279d8fccb768cfc/FLAGc11853946 [2024-12-02 11:01:58,594 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:01:58,594 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b526b3-0aed-4cb0-a654-72481a9b5177/sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_up_to_harness_negated.i [2024-12-02 11:01:58,628 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b526b3-0aed-4cb0-a654-72481a9b5177/bin/uautomizer-verify-84ZbGMXZE1/data/fdc211423/59444eca8f6c4c259279d8fccb768cfc/FLAGc11853946 [2024-12-02 11:01:58,718 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b526b3-0aed-4cb0-a654-72481a9b5177/bin/uautomizer-verify-84ZbGMXZE1/data/fdc211423/59444eca8f6c4c259279d8fccb768cfc [2024-12-02 11:01:58,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:01:58,722 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:01:58,723 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:01:58,723 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:01:58,728 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:01:58,728 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:01:58" (1/1) ... [2024-12-02 11:01:58,729 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a8061be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:58, skipping insertion in model container [2024-12-02 11:01:58,729 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:01:58" (1/1) ... [2024-12-02 11:01:58,810 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:01:59,043 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b526b3-0aed-4cb0-a654-72481a9b5177/sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_up_to_harness_negated.i[4503,4516] [2024-12-02 11:01:59,049 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b526b3-0aed-4cb0-a654-72481a9b5177/sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_up_to_harness_negated.i[4563,4576] [2024-12-02 11:01:59,940 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:01:59,941 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:01:59,941 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:01:59,942 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:01:59,943 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:01:59,960 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:01:59,960 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:01:59,963 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:01:59,963 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:02:00,813 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:02:00,814 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:02:00,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:02:00,953 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:02:00,966 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b526b3-0aed-4cb0-a654-72481a9b5177/sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_up_to_harness_negated.i[4503,4516] [2024-12-02 11:02:00,967 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b526b3-0aed-4cb0-a654-72481a9b5177/sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_up_to_harness_negated.i[4563,4576] [2024-12-02 11:02:01,006 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:02:01,007 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:02:01,007 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:02:01,007 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:02:01,008 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:02:01,014 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:02:01,014 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:02:01,015 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:02:01,015 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:02:01,124 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8237] [2024-12-02 11:02:01,125 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:02:01,125 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:02:01,182 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8957-8968] [2024-12-02 11:02:01,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:02:01,356 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:02:01,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:02:01 WrapperNode [2024-12-02 11:02:01,357 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:02:01,358 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:02:01,358 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:02:01,358 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:02:01,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:02:01" (1/1) ... [2024-12-02 11:02:01,421 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:02:01" (1/1) ... [2024-12-02 11:02:01,485 INFO L138 Inliner]: procedures = 684, calls = 2931, calls flagged for inlining = 60, calls inlined = 11, statements flattened = 1229 [2024-12-02 11:02:01,485 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:02:01,486 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:02:01,486 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:02:01,486 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:02:01,496 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:02:01" (1/1) ... [2024-12-02 11:02:01,496 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:02:01" (1/1) ... [2024-12-02 11:02:01,503 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:02:01" (1/1) ... [2024-12-02 11:02:01,597 INFO L175 MemorySlicer]: Split 624 memory accesses to 5 slices as follows [54, 257, 2, 68, 243]. 41 percent of accesses are in the largest equivalence class. The 27 initializations are split as follows [4, 0, 2, 10, 11]. The 523 writes are split as follows [30, 257, 0, 4, 232]. [2024-12-02 11:02:01,597 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:02:01" (1/1) ... [2024-12-02 11:02:01,597 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:02:01" (1/1) ... [2024-12-02 11:02:01,657 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:02:01" (1/1) ... [2024-12-02 11:02:01,660 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:02:01" (1/1) ... [2024-12-02 11:02:01,665 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:02:01" (1/1) ... [2024-12-02 11:02:01,675 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:02:01" (1/1) ... [2024-12-02 11:02:01,680 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:02:01" (1/1) ... [2024-12-02 11:02:01,693 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:02:01,694 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:02:01,694 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:02:01,694 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:02:01,695 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:02:01" (1/1) ... [2024-12-02 11:02:01,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:02:01,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b526b3-0aed-4cb0-a654-72481a9b5177/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:02:01,727 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b526b3-0aed-4cb0-a654-72481a9b5177/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:02:01,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b526b3-0aed-4cb0-a654-72481a9b5177/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:02:01,756 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-12-02 11:02:01,756 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-12-02 11:02:01,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 11:02:01,756 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-12-02 11:02:01,756 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-12-02 11:02:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr [2024-12-02 11:02:01,757 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr [2024-12-02 11:02:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 11:02:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 11:02:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 11:02:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 11:02:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 11:02:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 11:02:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 11:02:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 11:02:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 11:02:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 11:02:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-12-02 11:02:01,757 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-12-02 11:02:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-02 11:02:01,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-02 11:02:01,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 11:02:01,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:02:01,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 11:02:01,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 11:02:01,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 11:02:01,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 11:02:01,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 11:02:01,758 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_priv_xlate_order [2024-12-02 11:02:01,758 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_priv_xlate_order [2024-12-02 11:02:01,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:02:01,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:02:01,758 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-12-02 11:02:01,758 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-12-02 11:02:01,758 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-12-02 11:02:01,758 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-12-02 11:02:01,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 11:02:01,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 11:02:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 11:02:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 11:02:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 11:02:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr [2024-12-02 11:02:01,759 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr [2024-12-02 11:02:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 11:02:01,759 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 11:02:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_from_empty_array [2024-12-02 11:02:01,759 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_from_empty_array [2024-12-02 11:02:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 11:02:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 11:02:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 11:02:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 11:02:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 11:02:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 11:02:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 11:02:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 11:02:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 11:02:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 11:02:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 11:02:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_check_atomic_ptr [2024-12-02 11:02:01,760 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_check_atomic_ptr [2024-12-02 11:02:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure is_front_valid_state [2024-12-02 11:02:01,760 INFO L138 BoogieDeclarations]: Found implementation of procedure is_front_valid_state [2024-12-02 11:02:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-12-02 11:02:01,760 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-12-02 11:02:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure is_ends_valid_state [2024-12-02 11:02:01,760 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ends_valid_state [2024-12-02 11:02:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure s_buf_belongs_to_pool [2024-12-02 11:02:01,760 INFO L138 BoogieDeclarations]: Found implementation of procedure s_buf_belongs_to_pool [2024-12-02 11:02:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-12-02 11:02:01,761 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-12-02 11:02:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 11:02:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 11:02:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 11:02:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 11:02:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 11:02:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr_explicit [2024-12-02 11:02:01,761 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr_explicit [2024-12-02 11:02:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_is_valid [2024-12-02 11:02:01,761 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_is_valid [2024-12-02 11:02:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure is_middle_valid_state [2024-12-02 11:02:01,761 INFO L138 BoogieDeclarations]: Found implementation of procedure is_middle_valid_state [2024-12-02 11:02:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr_explicit [2024-12-02 11:02:01,761 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr_explicit [2024-12-02 11:02:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:02:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 11:02:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 11:02:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 11:02:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 11:02:02,084 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:02:02,086 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:02:11,357 INFO L? ?]: Removed 227 outVars from TransFormulas that were not future-live. [2024-12-02 11:02:11,357 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:02:11,374 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:02:11,374 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 11:02:11,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:02:11 BoogieIcfgContainer [2024-12-02 11:02:11,374 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:02:11,377 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:02:11,377 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:02:11,381 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:02:11,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:01:58" (1/3) ... [2024-12-02 11:02:11,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51beb698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:02:11, skipping insertion in model container [2024-12-02 11:02:11,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:02:01" (2/3) ... [2024-12-02 11:02:11,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51beb698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:02:11, skipping insertion in model container [2024-12-02 11:02:11,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:02:11" (3/3) ... [2024-12-02 11:02:11,383 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_ring_buffer_acquire_up_to_harness_negated.i [2024-12-02 11:02:11,397 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:02:11,398 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_ring_buffer_acquire_up_to_harness_negated.i that has 22 procedures, 426 locations, 1 initial locations, 2 loop locations, and 4 error locations. [2024-12-02 11:02:11,457 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:02:11,467 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;@182ade2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:02:11,467 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-12-02 11:02:11,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 426 states, 241 states have (on average 1.2157676348547717) internal successors, (293), 245 states have internal predecessors, (293), 159 states have call successors, (159), 21 states have call predecessors, (159), 21 states have return successors, (159), 159 states have call predecessors, (159), 159 states have call successors, (159) [2024-12-02 11:02:11,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-12-02 11:02:11,479 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:02:11,480 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:02:11,480 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)] === [2024-12-02 11:02:11,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:02:11,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1254000177, now seen corresponding path program 1 times [2024-12-02 11:02:11,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:02:11,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705014386] [2024-12-02 11:02:11,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:02:11,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:03:46,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:03:47,742 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-12-02 11:03:47,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:03:47,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705014386] [2024-12-02 11:03:47,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705014386] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:03:47,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489170357] [2024-12-02 11:03:47,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:03:47,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:03:47,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b526b3-0aed-4cb0-a654-72481a9b5177/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:03:47,745 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b526b3-0aed-4cb0-a654-72481a9b5177/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:03:47,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b526b3-0aed-4cb0-a654-72481a9b5177/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 11:05:27,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:05:27,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 7599 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 11:05:27,271 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:05:27,289 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-12-02 11:05:27,289 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:05:27,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489170357] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:05:27,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:05:27,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 11:05:27,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635038509] [2024-12-02 11:05:27,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:05:27,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 11:05:27,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:05:27,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 11:05:27,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:05:27,318 INFO L87 Difference]: Start difference. First operand has 426 states, 241 states have (on average 1.2157676348547717) internal successors, (293), 245 states have internal predecessors, (293), 159 states have call successors, (159), 21 states have call predecessors, (159), 21 states have return successors, (159), 159 states have call predecessors, (159), 159 states have call successors, (159) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 11:05:27,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:05:27,393 INFO L93 Difference]: Finished difference Result 833 states and 1316 transitions. [2024-12-02 11:05:27,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 11:05:27,395 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 76 [2024-12-02 11:05:27,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:05:27,404 INFO L225 Difference]: With dead ends: 833 [2024-12-02 11:05:27,404 INFO L226 Difference]: Without dead ends: 420 [2024-12-02 11:05:27,410 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:05:27,412 INFO L435 NwaCegarLoop]: 603 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:05:27,413 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:05:27,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2024-12-02 11:05:27,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 420. [2024-12-02 11:05:27,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 236 states have (on average 1.1906779661016949) internal successors, (281), 240 states have internal predecessors, (281), 159 states have call successors, (159), 21 states have call predecessors, (159), 21 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2024-12-02 11:05:27,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 598 transitions. [2024-12-02 11:05:27,495 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 598 transitions. Word has length 76 [2024-12-02 11:05:27,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:05:27,496 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 598 transitions. [2024-12-02 11:05:27,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 11:05:27,496 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 598 transitions. [2024-12-02 11:05:27,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-12-02 11:05:27,499 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:05:27,499 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:05:27,520 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b526b3-0aed-4cb0-a654-72481a9b5177/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 11:05:27,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b526b3-0aed-4cb0-a654-72481a9b5177/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 11:05:27,700 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)] === [2024-12-02 11:05:27,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:05:27,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1070793293, now seen corresponding path program 1 times [2024-12-02 11:05:27,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:05:27,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788749094] [2024-12-02 11:05:27,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:05:27,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:07:01,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:07:04,139 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-02 11:07:04,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:07:04,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788749094] [2024-12-02 11:07:04,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788749094] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:07:04,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:07:04,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:07:04,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54315175] [2024-12-02 11:07:04,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:07:04,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:07:04,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:07:04,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:07:04,141 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:07:04,141 INFO L87 Difference]: Start difference. First operand 420 states and 598 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 11:07:04,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:07:04,635 INFO L93 Difference]: Finished difference Result 822 states and 1173 transitions. [2024-12-02 11:07:04,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:07:04,635 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 76 [2024-12-02 11:07:04,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:07:04,642 INFO L225 Difference]: With dead ends: 822 [2024-12-02 11:07:04,642 INFO L226 Difference]: Without dead ends: 432 [2024-12-02 11:07:04,645 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 [2024-12-02 11:07:04,645 INFO L435 NwaCegarLoop]: 593 mSDtfsCounter, 15 mSDsluCounter, 2345 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2938 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:07:04,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2938 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 11:07:04,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-12-02 11:07:04,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 430. [2024-12-02 11:07:04,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 243 states have (on average 1.1893004115226338) internal successors, (289), 248 states have internal predecessors, (289), 160 states have call successors, (160), 22 states have call predecessors, (160), 23 states have return successors, (161), 159 states have call predecessors, (161), 159 states have call successors, (161) [2024-12-02 11:07:04,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 610 transitions. [2024-12-02 11:07:04,681 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 610 transitions. Word has length 76 [2024-12-02 11:07:04,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:07:04,681 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 610 transitions. [2024-12-02 11:07:04,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 11:07:04,682 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 610 transitions. [2024-12-02 11:07:04,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-12-02 11:07:04,683 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:07:04,683 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:07:04,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:07:04,683 INFO L396 AbstractCegarLoop]: === Iteration 3 === 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)] === [2024-12-02 11:07:04,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:07:04,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1511353199, now seen corresponding path program 1 times [2024-12-02 11:07:04,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:07:04,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974073698] [2024-12-02 11:07:04,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:07:04,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:08:39,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:08:42,177 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-02 11:08:42,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:08:42,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974073698] [2024-12-02 11:08:42,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974073698] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:08:42,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:08:42,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:08:42,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759762324] [2024-12-02 11:08:42,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:08:42,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:08:42,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:08:42,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:08:42,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:08:42,179 INFO L87 Difference]: Start difference. First operand 430 states and 610 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 11:08:43,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:08:43,007 INFO L93 Difference]: Finished difference Result 836 states and 1192 transitions. [2024-12-02 11:08:43,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:08:43,007 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 77 [2024-12-02 11:08:43,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:08:43,011 INFO L225 Difference]: With dead ends: 836 [2024-12-02 11:08:43,011 INFO L226 Difference]: Without dead ends: 436 [2024-12-02 11:08:43,013 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:08:43,014 INFO L435 NwaCegarLoop]: 590 mSDtfsCounter, 23 mSDsluCounter, 2333 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 2923 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:08:43,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 2923 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 11:08:43,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-12-02 11:08:43,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 430. [2024-12-02 11:08:43,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 243 states have (on average 1.1893004115226338) internal successors, (289), 248 states have internal predecessors, (289), 160 states have call successors, (160), 22 states have call predecessors, (160), 23 states have return successors, (161), 159 states have call predecessors, (161), 159 states have call successors, (161) [2024-12-02 11:08:43,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 610 transitions. [2024-12-02 11:08:43,044 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 610 transitions. Word has length 77 [2024-12-02 11:08:43,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:08:43,045 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 610 transitions. [2024-12-02 11:08:43,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 11:08:43,045 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 610 transitions. [2024-12-02 11:08:43,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-12-02 11:08:43,046 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:08:43,046 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:08:43,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:08:43,047 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, aws_atomic_load_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 1 more)] === [2024-12-02 11:08:43,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:08:43,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1518949006, now seen corresponding path program 1 times [2024-12-02 11:08:43,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:08:43,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959951153] [2024-12-02 11:08:43,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:08:43,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:10:07,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:10:08,932 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-02 11:10:08,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:10:08,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959951153] [2024-12-02 11:10:08,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959951153] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:10:08,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:10:08,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:10:08,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866450178] [2024-12-02 11:10:08,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:10:08,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:10:08,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:10:08,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:10:08,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:10:08,934 INFO L87 Difference]: Start difference. First operand 430 states and 610 transitions. Second operand has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 11:10:09,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:10:09,624 INFO L93 Difference]: Finished difference Result 843 states and 1245 transitions. [2024-12-02 11:10:09,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:10:09,625 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 77 [2024-12-02 11:10:09,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:10:09,629 INFO L225 Difference]: With dead ends: 843 [2024-12-02 11:10:09,629 INFO L226 Difference]: Without dead ends: 441 [2024-12-02 11:10:09,631 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:10:09,632 INFO L435 NwaCegarLoop]: 586 mSDtfsCounter, 32 mSDsluCounter, 2922 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 3508 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:10:09,632 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 3508 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:10:09,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-12-02 11:10:09,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 435. [2024-12-02 11:10:09,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 248 states have (on average 1.189516129032258) internal successors, (295), 252 states have internal predecessors, (295), 160 states have call successors, (160), 23 states have call predecessors, (160), 23 states have return successors, (159), 159 states have call predecessors, (159), 159 states have call successors, (159) [2024-12-02 11:10:09,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 614 transitions. [2024-12-02 11:10:09,657 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 614 transitions. Word has length 77 [2024-12-02 11:10:09,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:10:09,657 INFO L471 AbstractCegarLoop]: Abstraction has 435 states and 614 transitions. [2024-12-02 11:10:09,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-12-02 11:10:09,658 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 614 transitions. [2024-12-02 11:10:09,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-12-02 11:10:09,659 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:10:09,659 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:10:09,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:10:09,659 INFO L396 AbstractCegarLoop]: === Iteration 5 === 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)] === [2024-12-02 11:10:09,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:10:09,660 INFO L85 PathProgramCache]: Analyzing trace with hash 161000777, now seen corresponding path program 1 times [2024-12-02 11:10:09,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:10:09,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527791479] [2024-12-02 11:10:09,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:10:09,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:32,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:34,054 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-02 11:11:34,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:34,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527791479] [2024-12-02 11:11:34,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527791479] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:34,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:34,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:11:34,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768672740] [2024-12-02 11:11:34,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:34,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:11:34,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:34,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:11:34,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:11:34,055 INFO L87 Difference]: Start difference. First operand 435 states and 614 transitions. Second operand has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 11:11:34,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:34,780 INFO L93 Difference]: Finished difference Result 850 states and 1202 transitions. [2024-12-02 11:11:34,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:11:34,780 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 78 [2024-12-02 11:11:34,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:34,786 INFO L225 Difference]: With dead ends: 850 [2024-12-02 11:11:34,786 INFO L226 Difference]: Without dead ends: 443 [2024-12-02 11:11:34,788 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:11:34,789 INFO L435 NwaCegarLoop]: 587 mSDtfsCounter, 23 mSDsluCounter, 2909 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 3496 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:34,789 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 3496 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:11:34,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-12-02 11:11:34,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 435. [2024-12-02 11:11:34,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 248 states have (on average 1.185483870967742) internal successors, (294), 252 states have internal predecessors, (294), 160 states have call successors, (160), 23 states have call predecessors, (160), 23 states have return successors, (159), 159 states have call predecessors, (159), 159 states have call successors, (159) [2024-12-02 11:11:34,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 613 transitions. [2024-12-02 11:11:34,811 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 613 transitions. Word has length 78 [2024-12-02 11:11:34,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:34,812 INFO L471 AbstractCegarLoop]: Abstraction has 435 states and 613 transitions. [2024-12-02 11:11:34,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 11:11:34,812 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 613 transitions. [2024-12-02 11:11:34,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 11:11:34,813 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:34,813 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:34,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 11:11:34,814 INFO L396 AbstractCegarLoop]: === Iteration 6 === 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)] === [2024-12-02 11:11:34,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:34,814 INFO L85 PathProgramCache]: Analyzing trace with hash 578883085, now seen corresponding path program 1 times [2024-12-02 11:11:34,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:34,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365987400] [2024-12-02 11:11:34,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:34,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:12:58,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:13:00,386 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-02 11:13:00,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:13:00,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365987400] [2024-12-02 11:13:00,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365987400] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:13:00,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:13:00,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:13:00,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6826006] [2024-12-02 11:13:00,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:13:00,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:13:00,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:13:00,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:13:00,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:13:00,388 INFO L87 Difference]: Start difference. First operand 435 states and 613 transitions. Second operand has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 11:13:01,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:13:01,046 INFO L93 Difference]: Finished difference Result 848 states and 1198 transitions. [2024-12-02 11:13:01,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:13:01,047 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 79 [2024-12-02 11:13:01,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:13:01,050 INFO L225 Difference]: With dead ends: 848 [2024-12-02 11:13:01,050 INFO L226 Difference]: Without dead ends: 441 [2024-12-02 11:13:01,053 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:13:01,054 INFO L435 NwaCegarLoop]: 588 mSDtfsCounter, 22 mSDsluCounter, 2328 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2916 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:13:01,054 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2916 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:13:01,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-12-02 11:13:01,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 435. [2024-12-02 11:13:01,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 248 states have (on average 1.1814516129032258) internal successors, (293), 252 states have internal predecessors, (293), 160 states have call successors, (160), 23 states have call predecessors, (160), 23 states have return successors, (159), 159 states have call predecessors, (159), 159 states have call successors, (159) [2024-12-02 11:13:01,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 612 transitions. [2024-12-02 11:13:01,069 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 612 transitions. Word has length 79 [2024-12-02 11:13:01,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:13:01,069 INFO L471 AbstractCegarLoop]: Abstraction has 435 states and 612 transitions. [2024-12-02 11:13:01,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 11:13:01,070 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 612 transitions. [2024-12-02 11:13:01,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 11:13:01,071 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:13:01,071 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:13:01,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 11:13:01,071 INFO L396 AbstractCegarLoop]: === Iteration 7 === 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)] === [2024-12-02 11:13:01,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:13:01,072 INFO L85 PathProgramCache]: Analyzing trace with hash 762849349, now seen corresponding path program 1 times [2024-12-02 11:13:01,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:13:01,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667225391] [2024-12-02 11:13:01,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:13:01,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:14:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:14:25,351 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-02 11:14:25,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:14:25,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667225391] [2024-12-02 11:14:25,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667225391] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:14:25,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:14:25,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:14:25,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748723820] [2024-12-02 11:14:25,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:14:25,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:14:25,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:14:25,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:14:25,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:14:25,352 INFO L87 Difference]: Start difference. First operand 435 states and 612 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 11:14:25,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:14:25,451 INFO L93 Difference]: Finished difference Result 441 states and 619 transitions. [2024-12-02 11:14:25,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:14:25,452 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 80 [2024-12-02 11:14:25,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:14:25,454 INFO L225 Difference]: With dead ends: 441 [2024-12-02 11:14:25,454 INFO L226 Difference]: Without dead ends: 439 [2024-12-02 11:14:25,455 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:14:25,455 INFO L435 NwaCegarLoop]: 595 mSDtfsCounter, 0 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:14:25,455 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1778 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:14:25,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-12-02 11:14:25,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2024-12-02 11:14:25,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 251 states have (on average 1.1752988047808766) internal successors, (295), 255 states have internal predecessors, (295), 160 states have call successors, (160), 23 states have call predecessors, (160), 24 states have return successors, (161), 160 states have call predecessors, (161), 159 states have call successors, (161) [2024-12-02 11:14:25,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 616 transitions. [2024-12-02 11:14:25,468 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 616 transitions. Word has length 80 [2024-12-02 11:14:25,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:14:25,468 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 616 transitions. [2024-12-02 11:14:25,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 11:14:25,469 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 616 transitions. [2024-12-02 11:14:25,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 11:14:25,470 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:14:25,470 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:14:25,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 11:14:25,470 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting aws_atomic_load_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)] === [2024-12-02 11:14:25,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:14:25,470 INFO L85 PathProgramCache]: Analyzing trace with hash 92152060, now seen corresponding path program 1 times [2024-12-02 11:14:25,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:14:25,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115677976] [2024-12-02 11:14:25,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:14:25,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:15:47,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:15:50,069 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-12-02 11:15:50,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:15:50,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115677976] [2024-12-02 11:15:50,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115677976] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:15:50,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012320711] [2024-12-02 11:15:50,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:15:50,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:15:50,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b526b3-0aed-4cb0-a654-72481a9b5177/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:15:50,072 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b526b3-0aed-4cb0-a654-72481a9b5177/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:15:50,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83b526b3-0aed-4cb0-a654-72481a9b5177/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process