./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_ring_buffer_release_harness.i --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 30e01a73
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_ring_buffer_release_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 80528f4a8c519f417b5556e2d2458b4054f2fa1ae1a14cd2db000a7ac77b495e
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-30e01a7
[2023-11-23 21:10:11,807 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-23 21:10:11,886 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf
[2023-11-23 21:10:11,892 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-23 21:10:11,893 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-23 21:10:11,920 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-23 21:10:11,921 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-23 21:10:11,921 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-23 21:10:11,922 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-23 21:10:11,923 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-23 21:10:11,923 INFO L153 SettingsManager]: * User list type=DISABLED
[2023-11-23 21:10:11,924 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2023-11-23 21:10:11,925 INFO L153 SettingsManager]: * Explicit value domain=true
[2023-11-23 21:10:11,925 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2023-11-23 21:10:11,926 INFO L153 SettingsManager]: * Octagon Domain=false
[2023-11-23 21:10:11,927 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain
[2023-11-23 21:10:11,927 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true
[2023-11-23 21:10:11,928 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true
[2023-11-23 21:10:11,928 INFO L153 SettingsManager]: * Interval Domain=false
[2023-11-23 21:10:11,929 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults:
[2023-11-23 21:10:11,929 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer
[2023-11-23 21:10:11,930 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC
[2023-11-23 21:10:11,931 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-23 21:10:11,932 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-23 21:10:11,932 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-23 21:10:11,933 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-23 21:10:11,933 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-23 21:10:11,934 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-23 21:10:11,934 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-23 21:10:11,935 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-23 21:10:11,935 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-23 21:10:11,936 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-23 21:10:11,936 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2023-11-23 21:10:11,937 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-23 21:10:11,938 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-23 21:10:11,938 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-23 21:10:11,939 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-23 21:10:11,939 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-23 21:10:11,940 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN
[2023-11-23 21:10:11,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-23 21:10:11,941 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-23 21:10:11,942 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-23 21:10:11,942 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE
[2023-11-23 21:10:11,943 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-23 21:10:11,943 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80528f4a8c519f417b5556e2d2458b4054f2fa1ae1a14cd2db000a7ac77b495e
[2023-11-23 21:10:12,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-23 21:10:12,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-23 21:10:12,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-23 21:10:12,308 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-23 21:10:12,309 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-23 21:10:12,311 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/aws-c-common/aws_ring_buffer_release_harness.i
[2023-11-23 21:10:15,710 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-23 21:10:16,434 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-23 21:10:16,435 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/sv-benchmarks/c/aws-c-common/aws_ring_buffer_release_harness.i
[2023-11-23 21:10:16,486 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/data/02d315794/e1dc60027e5544eebbc0cb5c774c7f56/FLAG1834d2ef4
[2023-11-23 21:10:16,506 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/data/02d315794/e1dc60027e5544eebbc0cb5c774c7f56
[2023-11-23 21:10:16,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-23 21:10:16,515 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-23 21:10:16,519 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-23 21:10:16,519 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-23 21:10:16,525 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-23 21:10:16,526 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:10:16" (1/1) ...
[2023-11-23 21:10:16,527 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@389bc002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:16, skipping insertion in model container
[2023-11-23 21:10:16,528 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:10:16" (1/1) ...
[2023-11-23 21:10:16,696 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-23 21:10:17,027 WARN L240 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_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/sv-benchmarks/c/aws-c-common/aws_ring_buffer_release_harness.i[4497,4510]
[2023-11-23 21:10:17,039 WARN L240 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_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/sv-benchmarks/c/aws-c-common/aws_ring_buffer_release_harness.i[4557,4570]
[2023-11-23 21:10:18,651 WARN L1590 CHandler]: Possible shadowing of function index
[2023-11-23 21:10:18,652 WARN L1590 CHandler]: Possible shadowing of function index
[2023-11-23 21:10:18,653 WARN L1590 CHandler]: Possible shadowing of function index
[2023-11-23 21:10:18,654 WARN L1590 CHandler]: Possible shadowing of function index
[2023-11-23 21:10:18,684 WARN L1590 CHandler]: Possible shadowing of function index
[2023-11-23 21:10:18,705 WARN L1590 CHandler]: Possible shadowing of function index
[2023-11-23 21:10:18,706 WARN L1590 CHandler]: Possible shadowing of function index
[2023-11-23 21:10:18,709 WARN L1590 CHandler]: Possible shadowing of function index
[2023-11-23 21:10:18,711 WARN L1590 CHandler]: Possible shadowing of function index
[2023-11-23 21:10:19,212 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n
[2023-11-23 21:10:19,214 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n
[2023-11-23 21:10:19,215 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n
[2023-11-23 21:10:19,217 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n
[2023-11-23 21:10:19,219 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add
[2023-11-23 21:10:19,219 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub
[2023-11-23 21:10:19,220 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or
[2023-11-23 21:10:19,221 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and
[2023-11-23 21:10:19,222 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor
[2023-11-23 21:10:19,223 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence
[2023-11-23 21:10:19,563 WARN L1590 CHandler]: Possible shadowing of function index
[2023-11-23 21:10:19,564 WARN L1590 CHandler]: Possible shadowing of function index
[2023-11-23 21:10:19,750 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-23 21:10:19,849 INFO L202 MainTranslator]: Completed pre-run
[2023-11-23 21:10:19,879 WARN L240 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_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/sv-benchmarks/c/aws-c-common/aws_ring_buffer_release_harness.i[4497,4510]
[2023-11-23 21:10:19,880 WARN L240 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_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/sv-benchmarks/c/aws-c-common/aws_ring_buffer_release_harness.i[4557,4570]
[2023-11-23 21:10:19,953 WARN L1590 CHandler]: Possible shadowing of function index
[2023-11-23 21:10:19,954 WARN L1590 CHandler]: Possible shadowing of function index
[2023-11-23 21:10:19,954 WARN L1590 CHandler]: Possible shadowing of function index
[2023-11-23 21:10:19,956 WARN L1590 CHandler]: Possible shadowing of function index
[2023-11-23 21:10:19,957 WARN L1590 CHandler]: Possible shadowing of function index
[2023-11-23 21:10:19,969 WARN L1590 CHandler]: Possible shadowing of function index
[2023-11-23 21:10:19,970 WARN L1590 CHandler]: Possible shadowing of function index
[2023-11-23 21:10:19,971 WARN L1590 CHandler]: Possible shadowing of function index
[2023-11-23 21:10:19,972 WARN L1590 CHandler]: Possible shadowing of function index
[2023-11-23 21:10:20,030 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n
[2023-11-23 21:10:20,031 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n
[2023-11-23 21:10:20,032 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n
[2023-11-23 21:10:20,038 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n
[2023-11-23 21:10:20,041 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add
[2023-11-23 21:10:20,041 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub
[2023-11-23 21:10:20,042 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or
[2023-11-23 21:10:20,043 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and
[2023-11-23 21:10:20,043 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor
[2023-11-23 21:10:20,044 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence
[2023-11-23 21:10:20,150 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269]
[2023-11-23 21:10:20,152 WARN L1590 CHandler]: Possible shadowing of function index
[2023-11-23 21:10:20,153 WARN L1590 CHandler]: Possible shadowing of function index
[2023-11-23 21:10:20,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__(""
:
: "r"(pBuf)
: "memory"); [8995-9006]
[2023-11-23 21:10:20,293 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-23 21:10:20,517 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:10:20,517 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:10:20,517 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:10:20,518 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:10:20,518 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:10:20,518 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:10:20,518 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:10:20,518 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:10:20,518 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:10:20,519 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:10:20,519 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:10:20,519 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:10:20,519 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:10:20,519 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:10:20,519 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:10:20,520 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:10:20,520 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:10:20,520 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler.
[2023-11-23 21:10:20,557 INFO L206 MainTranslator]: Completed translation
[2023-11-23 21:10:20,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:20 WrapperNode
[2023-11-23 21:10:20,558 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-23 21:10:20,559 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-23 21:10:20,559 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-23 21:10:20,559 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-23 21:10:20,568 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:20" (1/1) ...
[2023-11-23 21:10:20,706 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:20" (1/1) ...
[2023-11-23 21:10:20,800 INFO L138 Inliner]: procedures = 694, calls = 2945, calls flagged for inlining = 60, calls inlined = 9, statements flattened = 1012
[2023-11-23 21:10:20,801 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-23 21:10:20,802 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-23 21:10:20,802 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-23 21:10:20,802 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-23 21:10:20,812 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:20" (1/1) ...
[2023-11-23 21:10:20,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:20" (1/1) ...
[2023-11-23 21:10:20,832 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:20" (1/1) ...
[2023-11-23 21:10:20,832 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:20" (1/1) ...
[2023-11-23 21:10:20,919 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:20" (1/1) ...
[2023-11-23 21:10:20,925 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:20" (1/1) ...
[2023-11-23 21:10:20,948 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:20" (1/1) ...
[2023-11-23 21:10:20,967 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:20" (1/1) ...
[2023-11-23 21:10:20,987 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-23 21:10:20,994 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-23 21:10:20,994 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-23 21:10:20,994 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-23 21:10:20,995 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:20" (1/1) ...
[2023-11-23 21:10:21,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-23 21:10:21,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3
[2023-11-23 21:10:21,034 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-23 21:10:21,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-23 21:10:21,079 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid
[2023-11-23 21:10:21,080 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid
[2023-11-23 21:10:21,080 INFO L130 BoogieDeclarations]: Found specification of procedure __atomic_store_n
[2023-11-23 21:10:21,080 INFO L130 BoogieDeclarations]: Found specification of procedure __atomic_load_n
[2023-11-23 21:10:21,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-23 21:10:21,080 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool
[2023-11-23 21:10:21,080 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool
[2023-11-23 21:10:21,081 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr
[2023-11-23 21:10:21,082 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr
[2023-11-23 21:10:21,082 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member_in_range
[2023-11-23 21:10:21,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member_in_range
[2023-11-23 21:10:21,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2023-11-23 21:10:21,083 INFO L130 BoogieDeclarations]: Found specification of procedure is_empty_state
[2023-11-23 21:10:21,083 INFO L138 BoogieDeclarations]: Found implementation of procedure is_empty_state
[2023-11-23 21:10:21,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2023-11-23 21:10:21,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2023-11-23 21:10:21,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2023-11-23 21:10:21,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-23 21:10:21,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2023-11-23 21:10:21,085 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_priv_xlate_order
[2023-11-23 21:10:21,085 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_priv_xlate_order
[2023-11-23 21:10:21,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-23 21:10:21,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-23 21:10:21,086 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc
[2023-11-23 21:10:21,086 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc
[2023-11-23 21:10:21,086 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr
[2023-11-23 21:10:21,086 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr
[2023-11-23 21:10:21,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset
[2023-11-23 21:10:21,087 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset
[2023-11-23 21:10:21,087 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-11-23 21:10:21,087 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-11-23 21:10:21,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-23 21:10:21,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2023-11-23 21:10:21,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2023-11-23 21:10:21,089 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_check_atomic_ptr
[2023-11-23 21:10:21,089 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_check_atomic_ptr
[2023-11-23 21:10:21,089 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator
[2023-11-23 21:10:21,089 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator
[2023-11-23 21:10:21,090 INFO L130 BoogieDeclarations]: Found specification of procedure is_ends_valid_state
[2023-11-23 21:10:21,090 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ends_valid_state
[2023-11-23 21:10:21,090 INFO L130 BoogieDeclarations]: Found specification of procedure s_buf_belongs_to_pool
[2023-11-23 21:10:21,090 INFO L138 BoogieDeclarations]: Found implementation of procedure s_buf_belongs_to_pool
[2023-11-23 21:10:21,091 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t
[2023-11-23 21:10:21,091 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t
[2023-11-23 21:10:21,091 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr_explicit
[2023-11-23 21:10:21,091 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr_explicit
[2023-11-23 21:10:21,091 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_is_valid
[2023-11-23 21:10:21,091 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_is_valid
[2023-11-23 21:10:21,092 INFO L130 BoogieDeclarations]: Found specification of procedure is_middle_valid_state
[2023-11-23 21:10:21,092 INFO L138 BoogieDeclarations]: Found implementation of procedure is_middle_valid_state
[2023-11-23 21:10:21,092 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr_explicit
[2023-11-23 21:10:21,092 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr_explicit
[2023-11-23 21:10:21,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-23 21:10:21,492 INFO L241 CfgBuilder]: Building ICFG
[2023-11-23 21:10:21,503 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-23 21:10:23,041 INFO L282 CfgBuilder]: Performing block encoding
[2023-11-23 21:10:23,508 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-23 21:10:23,509 INFO L309 CfgBuilder]: Removed 2 assume(true) statements.
[2023-11-23 21:10:23,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:10:23 BoogieIcfgContainer
[2023-11-23 21:10:23,511 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-23 21:10:23,514 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-23 21:10:23,514 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-23 21:10:23,519 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-23 21:10:23,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:10:16" (1/3) ...
[2023-11-23 21:10:23,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d6f8311 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:10:23, skipping insertion in model container
[2023-11-23 21:10:23,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:20" (2/3) ...
[2023-11-23 21:10:23,521 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d6f8311 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:10:23, skipping insertion in model container
[2023-11-23 21:10:23,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:10:23" (3/3) ...
[2023-11-23 21:10:23,522 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_ring_buffer_release_harness.i
[2023-11-23 21:10:23,549 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-23 21:10:23,549 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2023-11-23 21:10:23,624 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-23 21:10:23,633 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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;@28328ae6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-23 21:10:23,633 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2023-11-23 21:10:23,640 INFO L276 IsEmpty]: Start isEmpty. Operand has 238 states, 129 states have (on average 1.1705426356589148) internal successors, (151), 131 states have internal predecessors, (151), 87 states have call successors, (87), 20 states have call predecessors, (87), 20 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87)
[2023-11-23 21:10:23,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2023-11-23 21:10:23,652 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 21:10:23,653 INFO L195 NwaCegarLoop]: trace histogram [3, 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]
[2023-11-23 21:10:23,653 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-23 21:10:23,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 21:10:23,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1645442134, now seen corresponding path program 1 times
[2023-11-23 21:10:23,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2023-11-23 21:10:23,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899012387]
[2023-11-23 21:10:23,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 21:10:23,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-23 21:10:24,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 21:10:25,195 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2023-11-23 21:10:25,196 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2023-11-23 21:10:25,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899012387]
[2023-11-23 21:10:25,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899012387] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-23 21:10:25,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-23 21:10:25,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-11-23 21:10:25,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808970661]
[2023-11-23 21:10:25,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-23 21:10:25,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-11-23 21:10:25,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2023-11-23 21:10:25,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-11-23 21:10:25,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-11-23 21:10:25,268 INFO L87 Difference]: Start difference. First operand has 238 states, 129 states have (on average 1.1705426356589148) internal successors, (151), 131 states have internal predecessors, (151), 87 states have call successors, (87), 20 states have call predecessors, (87), 20 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7)
[2023-11-23 21:10:26,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-23 21:10:26,331 INFO L93 Difference]: Finished difference Result 470 states and 701 transitions.
[2023-11-23 21:10:26,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2023-11-23 21:10:26,335 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 41
[2023-11-23 21:10:26,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-23 21:10:26,348 INFO L225 Difference]: With dead ends: 470
[2023-11-23 21:10:26,348 INFO L226 Difference]: Without dead ends: 247
[2023-11-23 21:10:26,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90
[2023-11-23 21:10:26,365 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 26 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2023-11-23 21:10:26,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 1707 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2023-11-23 21:10:26,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states.
[2023-11-23 21:10:26,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247.
[2023-11-23 21:10:26,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 135 states have (on average 1.162962962962963) internal successors, (157), 138 states have internal predecessors, (157), 88 states have call successors, (88), 22 states have call predecessors, (88), 22 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87)
[2023-11-23 21:10:26,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 332 transitions.
[2023-11-23 21:10:26,443 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 332 transitions. Word has length 41
[2023-11-23 21:10:26,444 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-23 21:10:26,444 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 332 transitions.
[2023-11-23 21:10:26,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7)
[2023-11-23 21:10:26,445 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 332 transitions.
[2023-11-23 21:10:26,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70
[2023-11-23 21:10:26,448 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 21:10:26,448 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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]
[2023-11-23 21:10:26,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-23 21:10:26,449 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-23 21:10:26,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 21:10:26,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1347173532, now seen corresponding path program 1 times
[2023-11-23 21:10:26,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2023-11-23 21:10:26,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302728948]
[2023-11-23 21:10:26,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 21:10:26,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-23 21:10:26,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 21:10:27,192 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2023-11-23 21:10:27,192 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2023-11-23 21:10:27,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302728948]
[2023-11-23 21:10:27,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302728948] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-23 21:10:27,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405350930]
[2023-11-23 21:10:27,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 21:10:27,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-23 21:10:27,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3
[2023-11-23 21:10:27,195 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-23 21:10:27,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-11-23 21:10:27,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 21:10:27,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 2551 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-11-23 21:10:27,952 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-23 21:10:28,076 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2023-11-23 21:10:28,076 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-23 21:10:28,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405350930] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-23 21:10:28,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-23 21:10:28,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11
[2023-11-23 21:10:28,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244561485]
[2023-11-23 21:10:28,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-23 21:10:28,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-11-23 21:10:28,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2023-11-23 21:10:28,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-11-23 21:10:28,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2023-11-23 21:10:28,080 INFO L87 Difference]: Start difference. First operand 247 states and 332 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2023-11-23 21:10:29,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-23 21:10:29,656 INFO L93 Difference]: Finished difference Result 258 states and 346 transitions.
[2023-11-23 21:10:29,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2023-11-23 21:10:29,657 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 69
[2023-11-23 21:10:29,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-23 21:10:29,661 INFO L225 Difference]: With dead ends: 258
[2023-11-23 21:10:29,662 INFO L226 Difference]: Without dead ends: 255
[2023-11-23 21:10:29,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182
[2023-11-23 21:10:29,664 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 24 mSDsluCounter, 1438 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 1733 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2023-11-23 21:10:29,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 1733 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2023-11-23 21:10:29,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states.
[2023-11-23 21:10:29,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255.
[2023-11-23 21:10:29,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 142 states have (on average 1.1830985915492958) internal successors, (168), 145 states have internal predecessors, (168), 88 states have call successors, (88), 23 states have call predecessors, (88), 23 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87)
[2023-11-23 21:10:29,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 343 transitions.
[2023-11-23 21:10:29,694 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 343 transitions. Word has length 69
[2023-11-23 21:10:29,695 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-23 21:10:29,695 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 343 transitions.
[2023-11-23 21:10:29,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2023-11-23 21:10:29,696 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 343 transitions.
[2023-11-23 21:10:29,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172
[2023-11-23 21:10:29,699 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 21:10:29,699 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-23 21:10:29,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-11-23 21:10:29,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2023-11-23 21:10:29,926 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-23 21:10:29,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 21:10:29,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1437271355, now seen corresponding path program 1 times
[2023-11-23 21:10:29,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2023-11-23 21:10:29,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934535075]
[2023-11-23 21:10:29,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 21:10:29,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-23 21:10:30,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 21:10:30,749 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked.
[2023-11-23 21:10:30,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2023-11-23 21:10:30,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934535075]
[2023-11-23 21:10:30,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934535075] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-23 21:10:30,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081880576]
[2023-11-23 21:10:30,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 21:10:30,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-23 21:10:30,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3
[2023-11-23 21:10:30,751 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-23 21:10:30,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-11-23 21:10:31,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 21:10:31,527 INFO L262 TraceCheckSpWp]: Trace formula consists of 3038 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-11-23 21:10:31,542 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-23 21:10:31,604 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked.
[2023-11-23 21:10:31,604 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-23 21:10:31,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081880576] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-23 21:10:31,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-23 21:10:31,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7
[2023-11-23 21:10:31,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673361683]
[2023-11-23 21:10:31,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-23 21:10:31,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-23 21:10:31,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2023-11-23 21:10:31,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-23 21:10:31,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2023-11-23 21:10:31,608 INFO L87 Difference]: Start difference. First operand 255 states and 343 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27)
[2023-11-23 21:10:32,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-23 21:10:32,740 INFO L93 Difference]: Finished difference Result 503 states and 674 transitions.
[2023-11-23 21:10:32,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-11-23 21:10:32,741 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 171
[2023-11-23 21:10:32,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-23 21:10:32,745 INFO L225 Difference]: With dead ends: 503
[2023-11-23 21:10:32,746 INFO L226 Difference]: Without dead ends: 257
[2023-11-23 21:10:32,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2023-11-23 21:10:32,748 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 4 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2023-11-23 21:10:32,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1419 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2023-11-23 21:10:32,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states.
[2023-11-23 21:10:32,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 255.
[2023-11-23 21:10:32,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 142 states have (on average 1.1690140845070423) internal successors, (166), 145 states have internal predecessors, (166), 88 states have call successors, (88), 23 states have call predecessors, (88), 23 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87)
[2023-11-23 21:10:32,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 341 transitions.
[2023-11-23 21:10:32,785 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 341 transitions. Word has length 171
[2023-11-23 21:10:32,785 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-23 21:10:32,785 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 341 transitions.
[2023-11-23 21:10:32,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27)
[2023-11-23 21:10:32,786 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 341 transitions.
[2023-11-23 21:10:32,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174
[2023-11-23 21:10:32,789 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 21:10:32,789 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-23 21:10:32,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-11-23 21:10:33,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-23 21:10:33,008 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-23 21:10:33,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 21:10:33,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1057672625, now seen corresponding path program 1 times
[2023-11-23 21:10:33,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2023-11-23 21:10:33,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172613320]
[2023-11-23 21:10:33,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 21:10:33,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-23 21:10:33,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 21:10:33,813 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked.
[2023-11-23 21:10:33,813 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2023-11-23 21:10:33,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172613320]
[2023-11-23 21:10:33,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172613320] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-23 21:10:33,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577267695]
[2023-11-23 21:10:33,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 21:10:33,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-23 21:10:33,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3
[2023-11-23 21:10:33,815 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-23 21:10:33,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-11-23 21:10:34,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 21:10:34,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 3042 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-11-23 21:10:34,590 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-23 21:10:34,703 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked.
[2023-11-23 21:10:34,703 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-23 21:10:34,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577267695] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-23 21:10:34,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-23 21:10:34,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12
[2023-11-23 21:10:34,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365002194]
[2023-11-23 21:10:34,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-23 21:10:34,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-11-23 21:10:34,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2023-11-23 21:10:34,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-11-23 21:10:34,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-11-23 21:10:34,707 INFO L87 Difference]: Start difference. First operand 255 states and 341 transitions. Second operand has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27)
[2023-11-23 21:10:35,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-23 21:10:35,413 INFO L93 Difference]: Finished difference Result 503 states and 670 transitions.
[2023-11-23 21:10:35,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2023-11-23 21:10:35,414 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 173
[2023-11-23 21:10:35,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-23 21:10:35,417 INFO L225 Difference]: With dead ends: 503
[2023-11-23 21:10:35,417 INFO L226 Difference]: Without dead ends: 257
[2023-11-23 21:10:35,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210
[2023-11-23 21:10:35,419 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 16 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2023-11-23 21:10:35,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 1677 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2023-11-23 21:10:35,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states.
[2023-11-23 21:10:35,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 255.
[2023-11-23 21:10:35,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 142 states have (on average 1.1549295774647887) internal successors, (164), 145 states have internal predecessors, (164), 88 states have call successors, (88), 23 states have call predecessors, (88), 23 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87)
[2023-11-23 21:10:35,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 339 transitions.
[2023-11-23 21:10:35,455 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 339 transitions. Word has length 173
[2023-11-23 21:10:35,457 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-23 21:10:35,458 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 339 transitions.
[2023-11-23 21:10:35,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27)
[2023-11-23 21:10:35,460 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 339 transitions.
[2023-11-23 21:10:35,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176
[2023-11-23 21:10:35,468 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 21:10:35,469 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-23 21:10:35,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-11-23 21:10:35,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-23 21:10:35,688 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-23 21:10:35,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 21:10:35,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1015497421, now seen corresponding path program 1 times
[2023-11-23 21:10:35,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2023-11-23 21:10:35,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366108368]
[2023-11-23 21:10:35,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 21:10:35,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-23 21:10:35,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 21:10:36,441 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked.
[2023-11-23 21:10:36,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2023-11-23 21:10:36,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366108368]
[2023-11-23 21:10:36,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366108368] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-23 21:10:36,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489868534]
[2023-11-23 21:10:36,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 21:10:36,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-23 21:10:36,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3
[2023-11-23 21:10:36,444 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-23 21:10:36,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-11-23 21:10:37,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 21:10:37,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 3046 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-11-23 21:10:37,193 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-23 21:10:37,313 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked.
[2023-11-23 21:10:37,313 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-23 21:10:37,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489868534] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-23 21:10:37,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-23 21:10:37,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12
[2023-11-23 21:10:37,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310749340]
[2023-11-23 21:10:37,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-23 21:10:37,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-11-23 21:10:37,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2023-11-23 21:10:37,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-11-23 21:10:37,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-11-23 21:10:37,317 INFO L87 Difference]: Start difference. First operand 255 states and 339 transitions. Second operand has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27)
[2023-11-23 21:10:39,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-23 21:10:39,127 INFO L93 Difference]: Finished difference Result 501 states and 664 transitions.
[2023-11-23 21:10:39,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2023-11-23 21:10:39,128 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 175
[2023-11-23 21:10:39,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-23 21:10:39,131 INFO L225 Difference]: With dead ends: 501
[2023-11-23 21:10:39,131 INFO L226 Difference]: Without dead ends: 259
[2023-11-23 21:10:39,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210
[2023-11-23 21:10:39,133 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 16 mSDsluCounter, 1392 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1676 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2023-11-23 21:10:39,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 1676 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2023-11-23 21:10:39,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states.
[2023-11-23 21:10:39,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 255.
[2023-11-23 21:10:39,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 142 states have (on average 1.147887323943662) internal successors, (163), 145 states have internal predecessors, (163), 88 states have call successors, (88), 23 states have call predecessors, (88), 23 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87)
[2023-11-23 21:10:39,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 338 transitions.
[2023-11-23 21:10:39,156 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 338 transitions. Word has length 175
[2023-11-23 21:10:39,156 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-23 21:10:39,156 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 338 transitions.
[2023-11-23 21:10:39,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27)
[2023-11-23 21:10:39,157 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 338 transitions.
[2023-11-23 21:10:39,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2023-11-23 21:10:39,160 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 21:10:39,161 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-23 21:10:39,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-11-23 21:10:39,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-23 21:10:39,375 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-23 21:10:39,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 21:10:39,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1395796687, now seen corresponding path program 1 times
[2023-11-23 21:10:39,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2023-11-23 21:10:39,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331693079]
[2023-11-23 21:10:39,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 21:10:39,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-23 21:10:39,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 21:10:40,166 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked.
[2023-11-23 21:10:40,167 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2023-11-23 21:10:40,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331693079]
[2023-11-23 21:10:40,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331693079] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-23 21:10:40,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087560968]
[2023-11-23 21:10:40,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 21:10:40,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-23 21:10:40,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3
[2023-11-23 21:10:40,169 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-23 21:10:40,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-11-23 21:10:40,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 21:10:40,961 INFO L262 TraceCheckSpWp]: Trace formula consists of 3050 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-11-23 21:10:40,970 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-23 21:10:41,077 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked.
[2023-11-23 21:10:41,077 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-23 21:10:41,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087560968] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-23 21:10:41,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-23 21:10:41,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12
[2023-11-23 21:10:41,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483980426]
[2023-11-23 21:10:41,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-23 21:10:41,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-11-23 21:10:41,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2023-11-23 21:10:41,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-11-23 21:10:41,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-11-23 21:10:41,080 INFO L87 Difference]: Start difference. First operand 255 states and 338 transitions. Second operand has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27)
[2023-11-23 21:10:42,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-23 21:10:42,147 INFO L93 Difference]: Finished difference Result 501 states and 662 transitions.
[2023-11-23 21:10:42,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2023-11-23 21:10:42,149 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 177
[2023-11-23 21:10:42,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-23 21:10:42,152 INFO L225 Difference]: With dead ends: 501
[2023-11-23 21:10:42,152 INFO L226 Difference]: Without dead ends: 259
[2023-11-23 21:10:42,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210
[2023-11-23 21:10:42,154 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 18 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1393 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2023-11-23 21:10:42,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1393 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2023-11-23 21:10:42,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states.
[2023-11-23 21:10:42,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 255.
[2023-11-23 21:10:42,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 142 states have (on average 1.1408450704225352) internal successors, (162), 145 states have internal predecessors, (162), 88 states have call successors, (88), 23 states have call predecessors, (88), 23 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87)
[2023-11-23 21:10:42,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 337 transitions.
[2023-11-23 21:10:42,173 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 337 transitions. Word has length 177
[2023-11-23 21:10:42,174 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-23 21:10:42,174 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 337 transitions.
[2023-11-23 21:10:42,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27)
[2023-11-23 21:10:42,175 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 337 transitions.
[2023-11-23 21:10:42,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180
[2023-11-23 21:10:42,178 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 21:10:42,178 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-23 21:10:42,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2023-11-23 21:10:42,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2023-11-23 21:10:42,392 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-23 21:10:42,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 21:10:42,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1083004715, now seen corresponding path program 1 times
[2023-11-23 21:10:42,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2023-11-23 21:10:42,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623882843]
[2023-11-23 21:10:42,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 21:10:42,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-23 21:10:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 21:10:43,639 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 3 proven. 68 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked.
[2023-11-23 21:10:43,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2023-11-23 21:10:43,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623882843]
[2023-11-23 21:10:43,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623882843] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-23 21:10:43,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951428187]
[2023-11-23 21:10:43,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 21:10:43,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-23 21:10:43,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3
[2023-11-23 21:10:43,644 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-23 21:10:43,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2023-11-23 21:10:44,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 21:10:44,367 INFO L262 TraceCheckSpWp]: Trace formula consists of 3054 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-11-23 21:10:44,375 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-23 21:10:44,426 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked.
[2023-11-23 21:10:44,427 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-23 21:10:44,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951428187] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-23 21:10:44,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-23 21:10:44,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 11
[2023-11-23 21:10:44,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859729036]
[2023-11-23 21:10:44,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-23 21:10:44,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-23 21:10:44,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2023-11-23 21:10:44,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-23 21:10:44,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110
[2023-11-23 21:10:44,430 INFO L87 Difference]: Start difference. First operand 255 states and 337 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27)
[2023-11-23 21:10:45,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-23 21:10:45,204 INFO L93 Difference]: Finished difference Result 477 states and 665 transitions.
[2023-11-23 21:10:45,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-11-23 21:10:45,205 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 179
[2023-11-23 21:10:45,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-23 21:10:45,208 INFO L225 Difference]: With dead ends: 477
[2023-11-23 21:10:45,209 INFO L226 Difference]: Without dead ends: 255
[2023-11-23 21:10:45,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156
[2023-11-23 21:10:45,211 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 4 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2023-11-23 21:10:45,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1434 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2023-11-23 21:10:45,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states.
[2023-11-23 21:10:45,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255.
[2023-11-23 21:10:45,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 142 states have (on average 1.1338028169014085) internal successors, (161), 145 states have internal predecessors, (161), 88 states have call successors, (88), 23 states have call predecessors, (88), 23 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87)
[2023-11-23 21:10:45,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 336 transitions.
[2023-11-23 21:10:45,229 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 336 transitions. Word has length 179
[2023-11-23 21:10:45,229 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-23 21:10:45,230 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 336 transitions.
[2023-11-23 21:10:45,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27)
[2023-11-23 21:10:45,230 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 336 transitions.
[2023-11-23 21:10:45,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186
[2023-11-23 21:10:45,233 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 21:10:45,233 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-23 21:10:45,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2023-11-23 21:10:45,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-23 21:10:45,448 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-23 21:10:45,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 21:10:45,449 INFO L85 PathProgramCache]: Analyzing trace with hash 714248761, now seen corresponding path program 1 times
[2023-11-23 21:10:45,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2023-11-23 21:10:45,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001891743]
[2023-11-23 21:10:45,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 21:10:45,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-23 21:10:45,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 21:10:46,629 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 4 proven. 78 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked.
[2023-11-23 21:10:46,629 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2023-11-23 21:10:46,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001891743]
[2023-11-23 21:10:46,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001891743] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-23 21:10:46,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621946011]
[2023-11-23 21:10:46,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 21:10:46,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-23 21:10:46,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3
[2023-11-23 21:10:46,632 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-23 21:10:46,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2023-11-23 21:10:47,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 21:10:47,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 3066 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-11-23 21:10:47,403 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-23 21:10:47,508 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked.
[2023-11-23 21:10:47,508 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-23 21:10:47,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621946011] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-23 21:10:47,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-23 21:10:47,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16
[2023-11-23 21:10:47,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616949888]
[2023-11-23 21:10:47,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-23 21:10:47,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-11-23 21:10:47,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2023-11-23 21:10:47,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-11-23 21:10:47,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240
[2023-11-23 21:10:47,511 INFO L87 Difference]: Start difference. First operand 255 states and 336 transitions. Second operand has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27)
[2023-11-23 21:10:48,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-23 21:10:48,608 INFO L93 Difference]: Finished difference Result 477 states and 663 transitions.
[2023-11-23 21:10:48,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2023-11-23 21:10:48,609 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 185
[2023-11-23 21:10:48,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-23 21:10:48,612 INFO L225 Difference]: With dead ends: 477
[2023-11-23 21:10:48,612 INFO L226 Difference]: Without dead ends: 255
[2023-11-23 21:10:48,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342
[2023-11-23 21:10:48,614 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 14 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 1406 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2023-11-23 21:10:48,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 1406 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2023-11-23 21:10:48,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states.
[2023-11-23 21:10:48,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255.
[2023-11-23 21:10:48,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 142 states have (on average 1.1267605633802817) internal successors, (160), 145 states have internal predecessors, (160), 88 states have call successors, (88), 23 states have call predecessors, (88), 23 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87)
[2023-11-23 21:10:48,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 335 transitions.
[2023-11-23 21:10:48,632 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 335 transitions. Word has length 185
[2023-11-23 21:10:48,633 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-23 21:10:48,633 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 335 transitions.
[2023-11-23 21:10:48,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27)
[2023-11-23 21:10:48,633 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 335 transitions.
[2023-11-23 21:10:48,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192
[2023-11-23 21:10:48,636 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 21:10:48,636 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-23 21:10:48,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2023-11-23 21:10:48,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7
[2023-11-23 21:10:48,848 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-23 21:10:48,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 21:10:48,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1863912595, now seen corresponding path program 1 times
[2023-11-23 21:10:48,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2023-11-23 21:10:48,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950124434]
[2023-11-23 21:10:48,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 21:10:48,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-23 21:10:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 21:10:49,920 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 5 proven. 88 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked.
[2023-11-23 21:10:49,920 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2023-11-23 21:10:49,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950124434]
[2023-11-23 21:10:49,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950124434] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-23 21:10:49,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [572872394]
[2023-11-23 21:10:49,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 21:10:49,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-23 21:10:49,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3
[2023-11-23 21:10:49,923 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-23 21:10:49,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2023-11-23 21:10:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 21:10:50,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 3078 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-11-23 21:10:50,695 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-23 21:10:50,838 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked.
[2023-11-23 21:10:50,838 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-23 21:10:50,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [572872394] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-23 21:10:50,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-23 21:10:50,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16
[2023-11-23 21:10:50,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874782420]
[2023-11-23 21:10:50,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-23 21:10:50,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-11-23 21:10:50,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2023-11-23 21:10:50,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-11-23 21:10:50,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240
[2023-11-23 21:10:50,846 INFO L87 Difference]: Start difference. First operand 255 states and 335 transitions. Second operand has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27)
[2023-11-23 21:10:51,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-23 21:10:51,842 INFO L93 Difference]: Finished difference Result 479 states and 663 transitions.
[2023-11-23 21:10:51,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2023-11-23 21:10:51,842 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 191
[2023-11-23 21:10:51,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-23 21:10:51,845 INFO L225 Difference]: With dead ends: 479
[2023-11-23 21:10:51,845 INFO L226 Difference]: Without dead ends: 257
[2023-11-23 21:10:51,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342
[2023-11-23 21:10:51,848 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 12 mSDsluCounter, 1399 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1684 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2023-11-23 21:10:51,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1684 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2023-11-23 21:10:51,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states.
[2023-11-23 21:10:51,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 255.
[2023-11-23 21:10:51,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 142 states have (on average 1.119718309859155) internal successors, (159), 145 states have internal predecessors, (159), 88 states have call successors, (88), 23 states have call predecessors, (88), 23 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87)
[2023-11-23 21:10:51,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 334 transitions.
[2023-11-23 21:10:51,864 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 334 transitions. Word has length 191
[2023-11-23 21:10:51,864 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-23 21:10:51,865 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 334 transitions.
[2023-11-23 21:10:51,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27)
[2023-11-23 21:10:51,865 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 334 transitions.
[2023-11-23 21:10:51,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198
[2023-11-23 21:10:51,868 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 21:10:51,868 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-23 21:10:51,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2023-11-23 21:10:52,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8
[2023-11-23 21:10:52,084 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-23 21:10:52,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 21:10:52,085 INFO L85 PathProgramCache]: Analyzing trace with hash -973684679, now seen corresponding path program 1 times
[2023-11-23 21:10:52,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2023-11-23 21:10:52,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422560937]
[2023-11-23 21:10:52,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 21:10:52,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-23 21:10:52,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 21:10:53,270 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 6 proven. 98 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked.
[2023-11-23 21:10:53,271 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2023-11-23 21:10:53,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422560937]
[2023-11-23 21:10:53,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422560937] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-23 21:10:53,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894994570]
[2023-11-23 21:10:53,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 21:10:53,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-23 21:10:53,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3
[2023-11-23 21:10:53,273 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-23 21:10:53,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2023-11-23 21:10:54,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-23 21:10:54,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 3090 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-11-23 21:10:54,046 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-23 21:10:54,158 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2023-11-23 21:10:54,158 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-23 21:10:54,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [894994570] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-23 21:10:54,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-23 21:10:54,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16
[2023-11-23 21:10:54,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738243744]
[2023-11-23 21:10:54,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-23 21:10:54,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-11-23 21:10:54,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2023-11-23 21:10:54,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-11-23 21:10:54,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240
[2023-11-23 21:10:54,162 INFO L87 Difference]: Start difference. First operand 255 states and 334 transitions. Second operand has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 7 states have internal predecessors, (64), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27)
[2023-11-23 21:10:55,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-23 21:10:55,131 INFO L93 Difference]: Finished difference Result 479 states and 661 transitions.
[2023-11-23 21:10:55,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2023-11-23 21:10:55,132 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 7 states have internal predecessors, (64), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 197
[2023-11-23 21:10:55,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-23 21:10:55,135 INFO L225 Difference]: With dead ends: 479
[2023-11-23 21:10:55,135 INFO L226 Difference]: Without dead ends: 257
[2023-11-23 21:10:55,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342
[2023-11-23 21:10:55,138 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 12 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2023-11-23 21:10:55,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1400 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2023-11-23 21:10:55,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states.
[2023-11-23 21:10:55,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 255.
[2023-11-23 21:10:55,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 142 states have (on average 1.1126760563380282) internal successors, (158), 145 states have internal predecessors, (158), 88 states have call successors, (88), 23 states have call predecessors, (88), 23 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87)
[2023-11-23 21:10:55,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 333 transitions.
[2023-11-23 21:10:55,156 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 333 transitions. Word has length 197
[2023-11-23 21:10:55,157 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-23 21:10:55,157 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 333 transitions.
[2023-11-23 21:10:55,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 7 states have internal predecessors, (64), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27)
[2023-11-23 21:10:55,157 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 333 transitions.
[2023-11-23 21:10:55,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204
[2023-11-23 21:10:55,160 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-23 21:10:55,161 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-23 21:10:55,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0
[2023-11-23 21:10:55,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3775-4536-4fa1-8aa0-12eb3a2b12c1/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2023-11-23 21:10:55,388 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-23 21:10:55,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-23 21:10:55,388 INFO L85 PathProgramCache]: Analyzing trace with hash 658210821, now seen corresponding path program 1 times
[2023-11-23 21:10:55,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2023-11-23 21:10:55,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305752703]
[2023-11-23 21:10:55,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-23 21:10:55,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-23 21:10:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat