./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 aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1059594f-97a4-411f-a015-6a96dc6f6c2f/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1059594f-97a4-411f-a015-6a96dc6f6c2f/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1059594f-97a4-411f-a015-6a96dc6f6c2f/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1059594f-97a4-411f-a015-6a96dc6f6c2f/bin/utaipan-EQgc7hIp5V/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_1059594f-97a4-411f-a015-6a96dc6f6c2f/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1059594f-97a4-411f-a015-6a96dc6f6c2f/bin/utaipan-EQgc7hIp5V --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 --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:30:56,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:30:56,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:30:56,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:30:56,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:30:56,349 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:30:56,352 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:30:56,356 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:30:56,359 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:30:56,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:30:56,368 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:30:56,370 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:30:56,370 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:30:56,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:30:56,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:30:56,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:30:56,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:30:56,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:30:56,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:30:56,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:30:56,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:30:56,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:30:56,408 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:30:56,410 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:30:56,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:30:56,421 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:30:56,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:30:56,424 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:30:56,425 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:30:56,427 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:30:56,428 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:30:56,429 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:30:56,431 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:30:56,433 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:30:56,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:30:56,436 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:30:56,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:30:56,437 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:30:56,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:30:56,439 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:30:56,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:30:56,441 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1059594f-97a4-411f-a015-6a96dc6f6c2f/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 03:30:56,499 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:30:56,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:30:56,500 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:30:56,500 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:30:56,501 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:30:56,502 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:30:56,502 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:30:56,502 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:30:56,503 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:30:56,503 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:30:56,504 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:30:56,505 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:30:56,505 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:30:56,505 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:30:56,505 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:30:56,506 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:30:56,506 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:30:56,506 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:30:56,507 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:30:56,508 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:30:56,508 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:30:56,508 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:30:56,508 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:30:56,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:30:56,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:30:56,509 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:30:56,509 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:30:56,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:30:56,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:30:56,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:30:56,511 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:30:56,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:30:56,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:30:56,512 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:30:56,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:30:56,512 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:30:56,512 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:30:56,513 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:30:56,513 INFO L138 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_1059594f-97a4-411f-a015-6a96dc6f6c2f/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1059594f-97a4-411f-a015-6a96dc6f6c2f/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e59944759baac4a78b3b5460ff6f3a8abaec03123fb9537d86aeca785269fb41 [2021-11-23 03:30:56,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:30:56,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:30:56,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:30:56,888 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:30:56,889 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:30:56,890 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1059594f-97a4-411f-a015-6a96dc6f6c2f/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i [2021-11-23 03:30:57,004 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1059594f-97a4-411f-a015-6a96dc6f6c2f/bin/utaipan-EQgc7hIp5V/data/df0f49f32/dd3d506fcb594bbfa2f9c12a6de01110/FLAGf192b1075 [2021-11-23 03:30:57,975 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:30:57,976 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1059594f-97a4-411f-a015-6a96dc6f6c2f/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i [2021-11-23 03:30:58,038 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1059594f-97a4-411f-a015-6a96dc6f6c2f/bin/utaipan-EQgc7hIp5V/data/df0f49f32/dd3d506fcb594bbfa2f9c12a6de01110/FLAGf192b1075 [2021-11-23 03:30:58,410 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1059594f-97a4-411f-a015-6a96dc6f6c2f/bin/utaipan-EQgc7hIp5V/data/df0f49f32/dd3d506fcb594bbfa2f9c12a6de01110 [2021-11-23 03:30:58,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:30:58,415 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:30:58,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:30:58,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:30:58,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:30:58,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:30:58" (1/1) ... [2021-11-23 03:30:58,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2baef03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:58, skipping insertion in model container [2021-11-23 03:30:58,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:30:58" (1/1) ... [2021-11-23 03:30:58,437 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:30:58,585 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:30:58,938 WARN L230 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_1059594f-97a4-411f-a015-6a96dc6f6c2f/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4497,4510] [2021-11-23 03:30:58,948 WARN L230 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_1059594f-97a4-411f-a015-6a96dc6f6c2f/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4557,4570] [2021-11-23 03:31:00,039 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:31:00,040 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:31:00,041 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:31:00,042 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:31:00,043 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:31:00,060 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:31:00,061 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:31:00,063 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:31:00,064 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:31:00,621 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-23 03:31:00,623 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-23 03:31:00,624 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-23 03:31:00,625 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-23 03:31:00,627 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-23 03:31:00,628 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-23 03:31:00,629 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-23 03:31:00,630 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-23 03:31:00,630 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-23 03:31:00,631 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-23 03:31:00,837 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-23 03:31:00,977 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:31:00,978 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:31:01,104 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:31:01,255 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:31:01,282 WARN L230 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_1059594f-97a4-411f-a015-6a96dc6f6c2f/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4497,4510] [2021-11-23 03:31:01,302 WARN L230 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_1059594f-97a4-411f-a015-6a96dc6f6c2f/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4557,4570] [2021-11-23 03:31:01,375 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:31:01,377 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:31:01,378 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:31:01,379 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:31:01,379 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:31:01,393 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:31:01,396 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:31:01,397 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:31:01,398 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:31:01,457 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-23 03:31:01,459 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-23 03:31:01,459 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-23 03:31:01,460 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-23 03:31:01,461 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-23 03:31:01,462 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-23 03:31:01,463 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-23 03:31:01,463 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-23 03:31:01,464 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-23 03:31:01,464 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-23 03:31:01,488 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-23 03:31:01,549 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:31:01,550 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 03:31:01,596 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:31:01,896 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:31:01,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:01 WrapperNode [2021-11-23 03:31:01,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:31:01,898 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:31:01,898 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:31:01,899 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:31:01,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:01" (1/1) ... [2021-11-23 03:31:02,095 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:01" (1/1) ... [2021-11-23 03:31:02,218 INFO L137 Inliner]: procedures = 691, calls = 2619, calls flagged for inlining = 62, calls inlined = 10, statements flattened = 866 [2021-11-23 03:31:02,220 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:31:02,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:31:02,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:31:02,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:31:02,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:01" (1/1) ... [2021-11-23 03:31:02,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:01" (1/1) ... [2021-11-23 03:31:02,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:01" (1/1) ... [2021-11-23 03:31:02,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:01" (1/1) ... [2021-11-23 03:31:02,284 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:01" (1/1) ... [2021-11-23 03:31:02,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:01" (1/1) ... [2021-11-23 03:31:02,298 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:01" (1/1) ... [2021-11-23 03:31:02,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:31:02,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:31:02,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:31:02,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:31:02,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:01" (1/1) ... [2021-11-23 03:31:02,350 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:31:02,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1059594f-97a4-411f-a015-6a96dc6f6c2f/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:31:02,382 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1059594f-97a4-411f-a015-6a96dc6f6c2f/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:31:02,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1059594f-97a4-411f-a015-6a96dc6f6c2f/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:31:02,439 INFO L130 BoogieDeclarations]: Found specification of procedure htons [2021-11-23 03:31:02,439 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2021-11-23 03:31:02,440 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2021-11-23 03:31:02,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:31:02,442 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-23 03:31:02,442 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-23 03:31:02,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 03:31:02,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 03:31:02,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 03:31:02,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 03:31:02,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:31:02,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 03:31:02,445 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2021-11-23 03:31:02,445 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2021-11-23 03:31:02,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:31:02,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:31:02,446 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-23 03:31:02,446 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-23 03:31:02,446 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-23 03:31:02,447 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-23 03:31:02,447 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 03:31:02,447 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 03:31:02,448 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2021-11-23 03:31:02,449 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2021-11-23 03:31:02,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:31:02,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 03:31:02,450 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2021-11-23 03:31:02,450 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2021-11-23 03:31:02,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 03:31:02,451 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-23 03:31:02,451 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-23 03:31:02,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:31:02,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:31:02,834 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:31:02,836 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:31:04,391 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:31:04,722 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:31:04,723 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 03:31:04,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:31:04 BoogieIcfgContainer [2021-11-23 03:31:04,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:31:04,730 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:31:04,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:31:04,734 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:31:04,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:30:58" (1/3) ... [2021-11-23 03:31:04,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26a1d20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:31:04, skipping insertion in model container [2021-11-23 03:31:04,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:01" (2/3) ... [2021-11-23 03:31:04,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26a1d20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:31:04, skipping insertion in model container [2021-11-23 03:31:04,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:31:04" (3/3) ... [2021-11-23 03:31:04,740 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_be16_harness.i [2021-11-23 03:31:04,747 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:31:04,748 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 03:31:04,830 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:31:04,853 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 03:31:04,854 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 03:31:04,890 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) [2021-11-23 03:31:04,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-23 03:31:04,902 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:31:04,903 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:31:04,903 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:31:04,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:31:04,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1503298337, now seen corresponding path program 1 times [2021-11-23 03:31:04,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:31:04,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363675772] [2021-11-23 03:31:04,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:31:04,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:31:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:31:10,229 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-23 03:31:10,229 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:31:10,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363675772] [2021-11-23 03:31:10,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363675772] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:31:10,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356326632] [2021-11-23 03:31:10,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:31:10,232 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:31:10,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1059594f-97a4-411f-a015-6a96dc6f6c2f/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:31:10,236 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1059594f-97a4-411f-a015-6a96dc6f6c2f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:31:10,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1059594f-97a4-411f-a015-6a96dc6f6c2f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 03:31:10,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:31:10,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 2535 conjuncts, 146 conjunts are in the unsatisfiable core [2021-11-23 03:31:11,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:31:11,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 1 [2021-11-23 03:31:11,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 18 treesize of output 14 [2021-11-23 03:31:11,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:31:17,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2021-11-23 03:31:17,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:17,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:17,766 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-11-23 03:31:17,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 42 [2021-11-23 03:31:17,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:17,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 13 [2021-11-23 03:31:18,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:31:19,009 INFO L354 Elim1Store]: treesize reduction 46, result has 35.2 percent of original size [2021-11-23 03:31:19,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 75 treesize of output 81 [2021-11-23 03:31:19,054 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-23 03:31:19,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 59 [2021-11-23 03:31:30,922 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 03:31:30,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 130 treesize of output 126 [2021-11-23 03:31:30,947 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 03:31:30,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 case distinctions, treesize of input 126 treesize of output 106 [2021-11-23 03:31:31,013 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 03:31:31,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 166 treesize of output 158 [2021-11-23 03:31:32,785 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 14 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 03:31:32,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:31:35,485 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 76449 disjunctions. This might take some time... [2021-11-23 03:40:10,592 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 76449 disjunctions.