./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27810b3-a2a3-4987-bef8-a07101ae1a71/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27810b3-a2a3-4987-bef8-a07101ae1a71/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27810b3-a2a3-4987-bef8-a07101ae1a71/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27810b3-a2a3-4987-bef8-a07101ae1a71/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27810b3-a2a3-4987-bef8-a07101ae1a71/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27810b3-a2a3-4987-bef8-a07101ae1a71/bin/utaipan-ByfvJB40ur --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 f1ac591932d47e9b0b8902b9705db38e4b5e721c8f02110220ca6714b79582bb --- 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-38b53e6 [2022-11-25 22:20:25,535 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:20:25,538 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:20:25,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:20:25,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:20:25,587 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:20:25,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:20:25,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:20:25,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:20:25,594 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:20:25,595 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:20:25,597 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:20:25,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:20:25,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:20:25,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:20:25,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:20:25,606 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:20:25,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:20:25,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:20:25,621 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:20:25,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:20:25,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:20:25,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:20:25,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:20:25,639 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:20:25,640 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:20:25,640 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:20:25,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:20:25,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:20:25,644 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:20:25,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:20:25,645 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:20:25,647 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:20:25,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:20:25,651 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:20:25,651 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:20:25,652 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:20:25,653 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:20:25,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:20:25,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:20:25,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:20:25,656 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27810b3-a2a3-4987-bef8-a07101ae1a71/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 22:20:25,702 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:20:25,703 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:20:25,703 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:20:25,704 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:20:25,705 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:20:25,705 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:20:25,705 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:20:25,706 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:20:25,706 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:20:25,706 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:20:25,707 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:20:25,708 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:20:25,708 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:20:25,708 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:20:25,709 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:20:25,709 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:20:25,709 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:20:25,709 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:20:25,710 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:20:25,710 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:20:25,711 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:20:25,711 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:20:25,711 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:20:25,712 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:20:25,712 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:20:25,712 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:20:25,713 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:20:25,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:20:25,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:20:25,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:20:25,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:20:25,714 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:20:25,715 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:20:25,715 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:20:25,715 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:20:25,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:20:25,716 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:20:25,716 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:20:25,716 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_f27810b3-a2a3-4987-bef8-a07101ae1a71/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27810b3-a2a3-4987-bef8-a07101ae1a71/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1ac591932d47e9b0b8902b9705db38e4b5e721c8f02110220ca6714b79582bb [2022-11-25 22:20:26,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:20:26,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:20:26,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:20:26,090 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:20:26,090 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:20:26,092 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27810b3-a2a3-4987-bef8-a07101ae1a71/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i [2022-11-25 22:20:29,180 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:20:29,791 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:20:29,792 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27810b3-a2a3-4987-bef8-a07101ae1a71/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i [2022-11-25 22:20:29,829 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27810b3-a2a3-4987-bef8-a07101ae1a71/bin/utaipan-ByfvJB40ur/data/53a81a39d/cc63aeb6cd3d48da848023d0b51cabda/FLAG1804432cb [2022-11-25 22:20:29,851 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27810b3-a2a3-4987-bef8-a07101ae1a71/bin/utaipan-ByfvJB40ur/data/53a81a39d/cc63aeb6cd3d48da848023d0b51cabda [2022-11-25 22:20:29,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:20:29,855 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:20:29,858 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:20:29,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:20:29,866 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:20:29,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:20:29" (1/1) ... [2022-11-25 22:20:29,870 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24b50c67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:20:29, skipping insertion in model container [2022-11-25 22:20:29,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:20:29" (1/1) ... [2022-11-25 22:20:29,878 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:20:30,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:20:30,267 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_f27810b3-a2a3-4987-bef8-a07101ae1a71/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4497,4510] [2022-11-25 22:20:30,278 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_f27810b3-a2a3-4987-bef8-a07101ae1a71/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4557,4570] [2022-11-25 22:20:31,600 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:20:31,603 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:20:31,604 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:20:31,605 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:20:31,607 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:20:31,623 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:20:31,624 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:20:31,626 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:20:31,636 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:20:31,753 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:20:31,754 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:20:31,755 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:20:31,783 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 22:20:31,786 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 22:20:31,787 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 22:20:32,220 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 22:20:32,222 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 22:20:32,223 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 22:20:32,225 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 22:20:32,226 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 22:20:32,228 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 22:20:32,229 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 22:20:32,230 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 22:20:32,231 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 22:20:32,232 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 22:20:32,233 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 22:20:32,478 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-25 22:20:32,523 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-11-25 22:20:32,537 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:20:32,586 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:20:32,594 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:20:32,595 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:20:32,649 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 22:20:32,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:20:32,698 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:20:32,711 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_f27810b3-a2a3-4987-bef8-a07101ae1a71/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4497,4510] [2022-11-25 22:20:32,712 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_f27810b3-a2a3-4987-bef8-a07101ae1a71/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4557,4570] [2022-11-25 22:20:32,775 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:20:32,776 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:20:32,776 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:20:32,777 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:20:32,778 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:20:32,790 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:20:32,790 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:20:32,792 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:20:32,792 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:20:32,805 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:20:32,806 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:20:32,807 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:20:32,815 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 22:20:32,817 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 22:20:32,817 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 22:20:32,856 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 22:20:32,857 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 22:20:32,858 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 22:20:32,858 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 22:20:32,859 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 22:20:32,860 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 22:20:32,861 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 22:20:32,861 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 22:20:32,862 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 22:20:32,862 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 22:20:32,863 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 22:20:32,899 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-25 22:20:32,946 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-11-25 22:20:32,956 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:20:32,973 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:20:32,990 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:20:32,991 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:20:33,032 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 22:20:33,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:20:33,365 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:20:33,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:20:33 WrapperNode [2022-11-25 22:20:33,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:20:33,367 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:20:33,367 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:20:33,368 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:20:33,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:20:33" (1/1) ... [2022-11-25 22:20:33,473 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:20:33" (1/1) ... [2022-11-25 22:20:33,541 INFO L138 Inliner]: procedures = 690, calls = 2630, calls flagged for inlining = 61, calls inlined = 10, statements flattened = 956 [2022-11-25 22:20:33,542 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:20:33,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:20:33,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:20:33,543 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:20:33,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:20:33" (1/1) ... [2022-11-25 22:20:33,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:20:33" (1/1) ... [2022-11-25 22:20:33,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:20:33" (1/1) ... [2022-11-25 22:20:33,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:20:33" (1/1) ... [2022-11-25 22:20:33,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:20:33" (1/1) ... [2022-11-25 22:20:33,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:20:33" (1/1) ... [2022-11-25 22:20:33,605 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:20:33" (1/1) ... [2022-11-25 22:20:33,609 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:20:33" (1/1) ... [2022-11-25 22:20:33,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:20:33,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:20:33,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:20:33,627 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:20:33,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:20:33" (1/1) ... [2022-11-25 22:20:33,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:20:33,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27810b3-a2a3-4987-bef8-a07101ae1a71/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:20:33,661 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27810b3-a2a3-4987-bef8-a07101ae1a71/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:20:33,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27810b3-a2a3-4987-bef8-a07101ae1a71/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:20:33,739 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2022-11-25 22:20:33,740 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2022-11-25 22:20:33,740 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-11-25 22:20:33,740 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-11-25 22:20:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:20:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-25 22:20:33,741 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-25 22:20:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2022-11-25 22:20:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 22:20:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 22:20:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:20:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-25 22:20:33,743 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-25 22:20:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 22:20:33,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 22:20:33,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 22:20:33,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:20:33,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 22:20:33,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:20:33,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:20:33,745 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-25 22:20:33,745 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-25 22:20:33,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 22:20:33,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 22:20:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 22:20:33,747 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 22:20:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:20:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 22:20:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 22:20:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-25 22:20:33,748 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-25 22:20:33,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:20:33,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2022-11-25 22:20:33,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:20:34,161 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:20:34,164 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:20:36,046 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:20:36,390 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:20:36,390 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 22:20:36,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:20:36 BoogieIcfgContainer [2022-11-25 22:20:36,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:20:36,397 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:20:36,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:20:36,405 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:20:36,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:20:29" (1/3) ... [2022-11-25 22:20:36,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ade2ac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:20:36, skipping insertion in model container [2022-11-25 22:20:36,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:20:33" (2/3) ... [2022-11-25 22:20:36,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ade2ac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:20:36, skipping insertion in model container [2022-11-25 22:20:36,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:20:36" (3/3) ... [2022-11-25 22:20:36,412 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_u8_harness.i [2022-11-25 22:20:36,435 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:20:36,435 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 22:20:36,513 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:20:36,524 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;@eb3caa6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:20:36,524 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 22:20:36,529 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 50 states have (on average 1.2) internal successors, (60), 51 states have internal predecessors, (60), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-11-25 22:20:36,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-25 22:20:36,539 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:20:36,540 INFO L195 NwaCegarLoop]: trace histogram [9, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:20:36,541 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:20:36,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:20:36,547 INFO L85 PathProgramCache]: Analyzing trace with hash 199302089, now seen corresponding path program 1 times [2022-11-25 22:20:36,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:20:36,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299508748] [2022-11-25 22:20:36,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:20:36,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:20:39,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:20:48,756 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-11-25 22:20:48,756 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:20:48,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299508748] [2022-11-25 22:20:48,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299508748] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:20:48,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205720627] [2022-11-25 22:20:48,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:20:48,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:20:48,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27810b3-a2a3-4987-bef8-a07101ae1a71/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:20:48,763 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27810b3-a2a3-4987-bef8-a07101ae1a71/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:20:48,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f27810b3-a2a3-4987-bef8-a07101ae1a71/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:20:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:20:49,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 2703 conjuncts, 118 conjunts are in the unsatisfiable core [2022-11-25 22:20:49,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:20:49,945 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 [2022-11-25 22:20:49,953 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 6 treesize of output 5 [2022-11-25 22:20:49,961 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 [2022-11-25 22:20:54,384 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:20:54,389 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:20:54,390 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 88 treesize of output 68 [2022-11-25 22:20:54,402 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:20:54,406 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:20:54,407 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 48 [2022-11-25 22:20:54,423 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 22:20:54,426 INFO L350 Elim1Store]: Elim1 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 39 [2022-11-25 22:20:54,588 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 52 proven. 18 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-25 22:20:54,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:20:56,047 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 14202 disjunctions. This might take some time... [2022-11-25 22:21:09,108 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 13413 disjunctions.