./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_9e4be7d0-7f17-415e-beed-24e4fb949e31/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4be7d0-7f17-415e-beed-24e4fb949e31/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4be7d0-7f17-415e-beed-24e4fb949e31/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4be7d0-7f17-415e-beed-24e4fb949e31/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4be7d0-7f17-415e-beed-24e4fb949e31/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4be7d0-7f17-415e-beed-24e4fb949e31/bin/utaipan-7li7fVZpFI --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 01ad56e04b6ab93ff162b70d622a1dbeae0350a0f6dc141a393bf37a9fe53f01 --- 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-5e519f3 [2022-11-03 02:30:13,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:30:13,402 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:30:13,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:30:13,446 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:30:13,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:30:13,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:30:13,456 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:30:13,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:30:13,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:30:13,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:30:13,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:30:13,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:30:13,471 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:30:13,473 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:30:13,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:30:13,476 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:30:13,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:30:13,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:30:13,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:30:13,493 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:30:13,495 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:30:13,496 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:30:13,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:30:13,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:30:13,501 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:30:13,502 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:30:13,503 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:30:13,503 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:30:13,504 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:30:13,505 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:30:13,505 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:30:13,506 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:30:13,507 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:30:13,508 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:30:13,509 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:30:13,510 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:30:13,510 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:30:13,510 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:30:13,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:30:13,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:30:13,514 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4be7d0-7f17-415e-beed-24e4fb949e31/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:30:13,538 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:30:13,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:30:13,538 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:30:13,539 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:30:13,540 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:30:13,540 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:30:13,540 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:30:13,541 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:30:13,541 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:30:13,541 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:30:13,541 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:30:13,542 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:30:13,542 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:30:13,542 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:30:13,543 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:30:13,543 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:30:13,543 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:30:13,543 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:30:13,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:30:13,545 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:30:13,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:30:13,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:30:13,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:30:13,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:30:13,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:30:13,546 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:30:13,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:30:13,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:30:13,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:30:13,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:30:13,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:30:13,548 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:30:13,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:30:13,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:30:13,548 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:30:13,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:30:13,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:30:13,549 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:30:13,549 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_9e4be7d0-7f17-415e-beed-24e4fb949e31/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4be7d0-7f17-415e-beed-24e4fb949e31/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01ad56e04b6ab93ff162b70d622a1dbeae0350a0f6dc141a393bf37a9fe53f01 [2022-11-03 02:30:13,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:30:13,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:30:13,879 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:30:13,880 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:30:13,881 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:30:13,882 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4be7d0-7f17-415e-beed-24e4fb949e31/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i [2022-11-03 02:30:13,961 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4be7d0-7f17-415e-beed-24e4fb949e31/bin/utaipan-7li7fVZpFI/data/a0800c49a/3acff7c609854b0793a1d6853fa00e5e/FLAG561a3ddbe [2022-11-03 02:30:14,845 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:30:14,846 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4be7d0-7f17-415e-beed-24e4fb949e31/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i [2022-11-03 02:30:14,906 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4be7d0-7f17-415e-beed-24e4fb949e31/bin/utaipan-7li7fVZpFI/data/a0800c49a/3acff7c609854b0793a1d6853fa00e5e/FLAG561a3ddbe [2022-11-03 02:30:15,320 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4be7d0-7f17-415e-beed-24e4fb949e31/bin/utaipan-7li7fVZpFI/data/a0800c49a/3acff7c609854b0793a1d6853fa00e5e [2022-11-03 02:30:15,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:30:15,329 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:30:15,332 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:30:15,333 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:30:15,337 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:30:15,338 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:30:15" (1/1) ... [2022-11-03 02:30:15,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1abfa60a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:15, skipping insertion in model container [2022-11-03 02:30:15,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:30:15" (1/1) ... [2022-11-03 02:30:15,348 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:30:15,493 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:30:15,883 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_9e4be7d0-7f17-415e-beed-24e4fb949e31/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4505,4518] [2022-11-03 02:30:15,893 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_9e4be7d0-7f17-415e-beed-24e4fb949e31/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4565,4578] [2022-11-03 02:30:17,662 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:30:17,666 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:30:17,670 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:30:17,671 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:30:17,672 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:30:17,689 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:30:17,693 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:30:17,695 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:30:17,700 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:30:18,267 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-03 02:30:18,272 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-03 02:30:18,273 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-03 02:30:18,274 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-03 02:30:18,276 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-03 02:30:18,277 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-03 02:30:18,278 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-03 02:30:18,278 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-03 02:30:18,279 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-03 02:30:18,280 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-03 02:30:18,457 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-03 02:30:18,503 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:30:18,504 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:30:18,589 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:30:18,589 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:30:18,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:30:18,741 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:30:18,808 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_9e4be7d0-7f17-415e-beed-24e4fb949e31/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4505,4518] [2022-11-03 02:30:18,814 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_9e4be7d0-7f17-415e-beed-24e4fb949e31/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4565,4578] [2022-11-03 02:30:18,890 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:30:18,892 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:30:18,892 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:30:18,893 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:30:18,894 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:30:18,908 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:30:18,930 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:30:18,932 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:30:18,932 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:30:19,005 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-03 02:30:19,006 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-03 02:30:19,007 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-03 02:30:19,008 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-03 02:30:19,009 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-03 02:30:19,010 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-03 02:30:19,010 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-03 02:30:19,011 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-03 02:30:19,011 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-03 02:30:19,012 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-03 02:30:19,046 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-03 02:30:19,066 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:30:19,067 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:30:19,148 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:30:19,148 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:30:19,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:30:19,503 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:30:19,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:19 WrapperNode [2022-11-03 02:30:19,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:30:19,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:30:19,506 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:30:19,506 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:30:19,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:19" (1/1) ... [2022-11-03 02:30:19,648 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:19" (1/1) ... [2022-11-03 02:30:19,740 INFO L138 Inliner]: procedures = 691, calls = 2646, calls flagged for inlining = 63, calls inlined = 10, statements flattened = 959 [2022-11-03 02:30:19,754 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:30:19,755 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:30:19,755 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:30:19,756 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:30:19,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:19" (1/1) ... [2022-11-03 02:30:19,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:19" (1/1) ... [2022-11-03 02:30:19,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:19" (1/1) ... [2022-11-03 02:30:19,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:19" (1/1) ... [2022-11-03 02:30:19,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:19" (1/1) ... [2022-11-03 02:30:19,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:19" (1/1) ... [2022-11-03 02:30:19,948 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:19" (1/1) ... [2022-11-03 02:30:19,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:19" (1/1) ... [2022-11-03 02:30:19,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:30:19,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:30:19,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:30:19,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:30:19,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:19" (1/1) ... [2022-11-03 02:30:19,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:30:20,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4be7d0-7f17-415e-beed-24e4fb949e31/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:30:20,021 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4be7d0-7f17-415e-beed-24e4fb949e31/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:30:20,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4be7d0-7f17-415e-beed-24e4fb949e31/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:30:20,070 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-11-03 02:30:20,070 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-11-03 02:30:20,071 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-11-03 02:30:20,072 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-11-03 02:30:20,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:30:20,072 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-03 02:30:20,073 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-03 02:30:20,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:30:20,073 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-03 02:30:20,074 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-03 02:30:20,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-03 02:30:20,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-03 02:30:20,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:30:20,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:30:20,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:30:20,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:30:20,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:30:20,076 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-03 02:30:20,077 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-03 02:30:20,078 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 02:30:20,078 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 02:30:20,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:30:20,078 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-11-03 02:30:20,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-11-03 02:30:20,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:30:20,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:30:20,079 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-03 02:30:20,079 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-03 02:30:20,079 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-11-03 02:30:20,080 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-11-03 02:30:20,080 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2022-11-03 02:30:20,080 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2022-11-03 02:30:20,081 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-03 02:30:20,081 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-03 02:30:20,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:30:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:30:20,555 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:30:20,557 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:30:22,051 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:30:22,536 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:30:22,536 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 02:30:22,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:30:22 BoogieIcfgContainer [2022-11-03 02:30:22,541 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:30:22,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:30:22,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:30:22,550 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:30:22,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:30:15" (1/3) ... [2022-11-03 02:30:22,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19565b5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:30:22, skipping insertion in model container [2022-11-03 02:30:22,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:19" (2/3) ... [2022-11-03 02:30:22,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19565b5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:30:22, skipping insertion in model container [2022-11-03 02:30:22,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:30:22" (3/3) ... [2022-11-03 02:30:22,554 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_with_lookup_harness.i [2022-11-03 02:30:22,575 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:30:22,576 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:30:22,634 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:30:22,642 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;@34d0ca1a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:30:22,642 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:30:22,648 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 61 states have (on average 1.180327868852459) internal successors, (72), 62 states have internal predecessors, (72), 44 states have call successors, (44), 12 states have call predecessors, (44), 12 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-11-03 02:30:22,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-03 02:30:22,659 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:30:22,660 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:30:22,661 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:30:22,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:30:22,668 INFO L85 PathProgramCache]: Analyzing trace with hash -2063670608, now seen corresponding path program 1 times [2022-11-03 02:30:22,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:30:22,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96987374] [2022-11-03 02:30:22,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:30:22,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:30:25,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:30:32,535 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-03 02:30:32,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:30:32,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96987374] [2022-11-03 02:30:32,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96987374] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:30:32,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889371996] [2022-11-03 02:30:32,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:30:32,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:30:32,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4be7d0-7f17-415e-beed-24e4fb949e31/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:30:32,540 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4be7d0-7f17-415e-beed-24e4fb949e31/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:30:32,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e4be7d0-7f17-415e-beed-24e4fb949e31/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:30:33,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:30:33,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 2633 conjuncts, 152 conjunts are in the unsatisfiable core [2022-11-03 02:30:33,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:30:33,751 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 02:30:33,758 INFO L390 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 [2022-11-03 02:30:33,766 INFO L390 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 6 treesize of output 5 [2022-11-03 02:30:38,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:30:38,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:30:38,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:30:38,716 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2022-11-03 02:30:38,750 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:30:38,767 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 02:30:38,767 INFO L390 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 23 treesize of output 22 [2022-11-03 02:30:38,787 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:30:38,808 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 02:30:38,809 INFO L390 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 24 treesize of output 27 [2022-11-03 02:30:51,455 WARN L234 SmtUtils]: Spent 6.25s on a formula simplification. DAG size of input: 45 DAG size of output: 43 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:31:06,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:31:06,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:31:06,748 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:31:06,748 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 100 treesize of output 76 [2022-11-03 02:31:06,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:31:06,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:31:06,843 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:31:06,844 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2022-11-03 02:31:06,908 INFO L356 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2022-11-03 02:31:06,909 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 28 [2022-11-03 02:31:07,302 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 21 proven. 42 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 02:31:07,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:31:10,373 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 76449 disjunctions. This might take some time... [2022-11-03 02:39:49,993 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 76449 disjunctions.