./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73ba8edd-d36f-4b5a-ab4d-11b523f5cb0b/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73ba8edd-d36f-4b5a-ab4d-11b523f5cb0b/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73ba8edd-d36f-4b5a-ab4d-11b523f5cb0b/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73ba8edd-d36f-4b5a-ab4d-11b523f5cb0b/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73ba8edd-d36f-4b5a-ab4d-11b523f5cb0b/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73ba8edd-d36f-4b5a-ab4d-11b523f5cb0b/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --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 e59944759baac4a78b3b5460ff6f3a8abaec03123fb9537d86aeca785269fb41 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 00:36:01,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:36:01,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:36:01,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:36:01,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:36:01,884 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:36:01,885 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:36:01,888 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:36:01,891 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:36:01,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:36:01,897 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:36:01,899 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:36:01,901 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:36:01,907 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:36:01,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:36:01,911 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:36:01,912 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:36:01,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:36:01,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:36:01,916 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:36:01,918 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:36:01,919 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:36:01,920 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:36:01,921 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:36:01,924 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:36:01,925 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:36:01,925 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:36:01,926 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:36:01,927 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:36:01,928 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:36:01,928 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:36:01,929 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:36:01,930 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:36:01,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:36:01,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:36:01,932 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:36:01,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:36:01,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:36:01,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:36:01,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:36:01,935 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:36:01,936 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73ba8edd-d36f-4b5a-ab4d-11b523f5cb0b/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 00:36:01,960 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:36:01,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:36:01,961 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:36:01,961 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:36:01,962 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:36:01,962 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:36:01,962 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:36:01,963 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:36:01,963 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:36:01,963 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:36:01,963 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:36:01,964 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:36:01,964 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:36:01,964 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:36:01,964 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:36:01,965 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:36:01,965 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:36:01,965 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:36:01,966 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:36:01,966 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:36:01,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:36:01,967 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:36:01,967 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:36:01,967 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:36:01,967 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:36:01,968 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:36:01,968 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:36:01,968 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:36:01,968 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:36:01,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:36:01,969 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:36:01,969 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:36:01,969 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:36:01,970 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:36:01,970 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:36:01,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:36:01,970 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:36:01,971 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:36:01,971 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_73ba8edd-d36f-4b5a-ab4d-11b523f5cb0b/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73ba8edd-d36f-4b5a-ab4d-11b523f5cb0b/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e59944759baac4a78b3b5460ff6f3a8abaec03123fb9537d86aeca785269fb41 [2022-11-22 00:36:02,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:36:02,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:36:02,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:36:02,292 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:36:02,293 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:36:02,294 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73ba8edd-d36f-4b5a-ab4d-11b523f5cb0b/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i [2022-11-22 00:36:05,442 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:36:06,042 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:36:06,044 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73ba8edd-d36f-4b5a-ab4d-11b523f5cb0b/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i [2022-11-22 00:36:06,097 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73ba8edd-d36f-4b5a-ab4d-11b523f5cb0b/bin/utaipan-g80aRyZoba/data/e49fb2dee/01da7a0caf264d40b86287a7b060ba86/FLAG1fbf86d64 [2022-11-22 00:36:06,115 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73ba8edd-d36f-4b5a-ab4d-11b523f5cb0b/bin/utaipan-g80aRyZoba/data/e49fb2dee/01da7a0caf264d40b86287a7b060ba86 [2022-11-22 00:36:06,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:36:06,122 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:36:06,123 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:36:06,123 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:36:06,127 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:36:06,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:36:06" (1/1) ... [2022-11-22 00:36:06,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1832c5f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:36:06, skipping insertion in model container [2022-11-22 00:36:06,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:36:06" (1/1) ... [2022-11-22 00:36:06,137 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:36:06,252 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:36:06,579 WARN L237 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_73ba8edd-d36f-4b5a-ab4d-11b523f5cb0b/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4497,4510] [2022-11-22 00:36:06,592 WARN L237 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_73ba8edd-d36f-4b5a-ab4d-11b523f5cb0b/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4557,4570] [2022-11-22 00:36:07,586 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:36:07,586 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:36:07,587 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:36:07,588 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:36:07,589 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:36:07,603 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:36:07,604 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:36:07,606 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:36:07,607 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:36:08,079 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 00:36:08,082 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 00:36:08,087 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 00:36:08,090 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 00:36:08,095 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 00:36:08,097 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 00:36:08,099 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 00:36:08,101 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 00:36:08,102 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 00:36:08,104 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 00:36:08,345 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 00:36:08,450 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:36:08,452 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:36:08,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:36:08,653 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:36:08,682 WARN L237 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_73ba8edd-d36f-4b5a-ab4d-11b523f5cb0b/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4497,4510] [2022-11-22 00:36:08,683 WARN L237 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_73ba8edd-d36f-4b5a-ab4d-11b523f5cb0b/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4557,4570] [2022-11-22 00:36:08,730 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:36:08,730 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:36:08,731 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:36:08,731 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:36:08,732 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:36:08,750 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:36:08,751 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:36:08,752 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:36:08,752 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:36:08,800 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 00:36:08,801 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 00:36:08,801 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 00:36:08,802 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 00:36:08,806 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 00:36:08,807 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 00:36:08,807 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 00:36:08,808 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 00:36:08,809 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 00:36:08,817 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 00:36:08,848 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 00:36:08,929 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:36:08,929 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:36:08,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:36:09,252 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:36:09,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:36:09 WrapperNode [2022-11-22 00:36:09,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:36:09,269 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:36:09,269 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:36:09,269 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:36:09,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:36:09" (1/1) ... [2022-11-22 00:36:09,410 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:36:09" (1/1) ... [2022-11-22 00:36:09,550 INFO L138 Inliner]: procedures = 691, calls = 2618, calls flagged for inlining = 62, calls inlined = 10, statements flattened = 865 [2022-11-22 00:36:09,551 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:36:09,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:36:09,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:36:09,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:36:09,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:36:09" (1/1) ... [2022-11-22 00:36:09,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:36:09" (1/1) ... [2022-11-22 00:36:09,577 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:36:09" (1/1) ... [2022-11-22 00:36:09,578 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:36:09" (1/1) ... [2022-11-22 00:36:09,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:36:09" (1/1) ... [2022-11-22 00:36:09,634 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:36:09" (1/1) ... [2022-11-22 00:36:09,639 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:36:09" (1/1) ... [2022-11-22 00:36:09,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:36:09" (1/1) ... [2022-11-22 00:36:09,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:36:09,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:36:09,652 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:36:09,653 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:36:09,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:36:09" (1/1) ... [2022-11-22 00:36:09,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:36:09,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73ba8edd-d36f-4b5a-ab4d-11b523f5cb0b/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:36:09,689 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73ba8edd-d36f-4b5a-ab4d-11b523f5cb0b/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:36:09,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73ba8edd-d36f-4b5a-ab4d-11b523f5cb0b/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:36:09,741 INFO L130 BoogieDeclarations]: Found specification of procedure htons [2022-11-22 00:36:09,741 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-11-22 00:36:09,742 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-11-22 00:36:09,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:36:09,743 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-22 00:36:09,743 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-22 00:36:09,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 00:36:09,744 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-22 00:36:09,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-22 00:36:09,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 00:36:09,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:36:09,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 00:36:09,745 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-22 00:36:09,745 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-22 00:36:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:36:09,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:36:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-22 00:36:09,746 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-22 00:36:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-22 00:36:09,747 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-22 00:36:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-22 00:36:09,747 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-22 00:36:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-22 00:36:09,748 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-22 00:36:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:36:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 00:36:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2022-11-22 00:36:09,749 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2022-11-22 00:36:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 00:36:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-22 00:36:09,750 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-22 00:36:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:36:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:36:10,113 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:36:10,116 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:36:11,662 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:36:12,028 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:36:12,028 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 00:36:12,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:36:12 BoogieIcfgContainer [2022-11-22 00:36:12,031 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:36:12,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:36:12,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:36:12,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:36:12,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:36:06" (1/3) ... [2022-11-22 00:36:12,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7f6e9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:36:12, skipping insertion in model container [2022-11-22 00:36:12,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:36:09" (2/3) ... [2022-11-22 00:36:12,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7f6e9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:36:12, skipping insertion in model container [2022-11-22 00:36:12,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:36:12" (3/3) ... [2022-11-22 00:36:12,043 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_be16_harness.i [2022-11-22 00:36:12,062 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:36:12,063 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 00:36:12,152 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:36:12,163 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=LoopsAndPotentialCycles, 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;@1c4c540b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:36:12,163 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 00:36:12,168 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 52 states have (on average 1.1923076923076923) internal successors, (62), 53 states have internal predecessors, (62), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-11-22 00:36:12,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-22 00:36:12,177 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:36:12,178 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:36:12,179 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:36:12,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:36:12,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1503298337, now seen corresponding path program 1 times [2022-11-22 00:36:12,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:36:12,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979166451] [2022-11-22 00:36:12,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:36:12,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:36:15,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:36:31,938 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-22 00:36:31,938 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:36:31,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979166451] [2022-11-22 00:36:31,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979166451] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:36:31,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087343745] [2022-11-22 00:36:31,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:36:31,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:36:31,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73ba8edd-d36f-4b5a-ab4d-11b523f5cb0b/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:36:31,947 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73ba8edd-d36f-4b5a-ab4d-11b523f5cb0b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:36:31,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73ba8edd-d36f-4b5a-ab4d-11b523f5cb0b/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 00:36:32,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:36:32,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 2601 conjuncts, 150 conjunts are in the unsatisfiable core [2022-11-22 00:36:32,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:36:33,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:36:33,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:36:37,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:36:37,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-22 00:36:37,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:36:37,233 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 00:36:37,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 40 [2022-11-22 00:36:42,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:36:42,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-22 00:36:42,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:36:42,379 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 00:36:42,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 49 [2022-11-22 00:36:58,964 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:36:58,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 78 treesize of output 62 [2022-11-22 00:36:59,052 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:36:59,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2022-11-22 00:36:59,449 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 14 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 00:36:59,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:37:02,469 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 76449 disjunctions. This might take some time... [2022-11-22 00:45:11,237 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 76449 disjunctions.