./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 2329fc70 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_bf970104-1f41-4aa2-a741-bb5b24451f1b/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf970104-1f41-4aa2-a741-bb5b24451f1b/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf970104-1f41-4aa2-a741-bb5b24451f1b/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf970104-1f41-4aa2-a741-bb5b24451f1b/bin/utaipan-gh47qXpMRh/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_bf970104-1f41-4aa2-a741-bb5b24451f1b/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf970104-1f41-4aa2-a741-bb5b24451f1b/bin/utaipan-gh47qXpMRh --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-2329fc7 [2022-12-14 13:57:13,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:57:13,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:57:13,643 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:57:13,643 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:57:13,644 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:57:13,645 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:57:13,647 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:57:13,648 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:57:13,649 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:57:13,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:57:13,651 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:57:13,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:57:13,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:57:13,654 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:57:13,655 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:57:13,655 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:57:13,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:57:13,658 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:57:13,659 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:57:13,661 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:57:13,662 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:57:13,663 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:57:13,664 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:57:13,667 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:57:13,667 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:57:13,667 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:57:13,668 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:57:13,669 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:57:13,669 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:57:13,670 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:57:13,670 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:57:13,671 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:57:13,672 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:57:13,673 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:57:13,673 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:57:13,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:57:13,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:57:13,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:57:13,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:57:13,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:57:13,676 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf970104-1f41-4aa2-a741-bb5b24451f1b/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 13:57:13,695 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:57:13,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:57:13,696 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:57:13,696 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:57:13,697 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:57:13,697 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:57:13,697 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:57:13,698 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:57:13,698 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:57:13,698 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:57:13,698 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:57:13,698 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:57:13,699 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:57:13,699 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:57:13,699 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:57:13,699 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:57:13,699 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:57:13,700 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:57:13,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:57:13,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:57:13,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:57:13,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:57:13,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:57:13,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:57:13,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:57:13,702 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:57:13,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:57:13,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:57:13,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:57:13,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:57:13,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:57:13,703 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:57:13,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:57:13,703 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:57:13,704 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:57:13,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:57:13,704 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:57:13,704 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:57:13,704 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_bf970104-1f41-4aa2-a741-bb5b24451f1b/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf970104-1f41-4aa2-a741-bb5b24451f1b/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1ac591932d47e9b0b8902b9705db38e4b5e721c8f02110220ca6714b79582bb [2022-12-14 13:57:13,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:57:13,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:57:13,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:57:13,917 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:57:13,917 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:57:13,918 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf970104-1f41-4aa2-a741-bb5b24451f1b/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i [2022-12-14 13:57:16,536 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:57:16,864 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:57:16,864 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf970104-1f41-4aa2-a741-bb5b24451f1b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i [2022-12-14 13:57:16,887 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf970104-1f41-4aa2-a741-bb5b24451f1b/bin/utaipan-gh47qXpMRh/data/05974e0f2/2bc6635558574592bad1195407d1d8ed/FLAG85a3f9c19 [2022-12-14 13:57:16,897 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf970104-1f41-4aa2-a741-bb5b24451f1b/bin/utaipan-gh47qXpMRh/data/05974e0f2/2bc6635558574592bad1195407d1d8ed [2022-12-14 13:57:16,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:57:16,900 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:57:16,901 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:57:16,901 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:57:16,904 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:57:16,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:57:16" (1/1) ... [2022-12-14 13:57:16,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48e7f9d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:16, skipping insertion in model container [2022-12-14 13:57:16,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:57:16" (1/1) ... [2022-12-14 13:57:16,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:57:16,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:57:17,145 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_bf970104-1f41-4aa2-a741-bb5b24451f1b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4497,4510] [2022-12-14 13:57:17,151 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_bf970104-1f41-4aa2-a741-bb5b24451f1b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4557,4570] [2022-12-14 13:57:17,851 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 13:57:17,852 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 13:57:17,852 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 13:57:17,853 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 13:57:17,853 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 13:57:17,863 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 13:57:17,863 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 13:57:17,865 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 13:57:17,865 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 13:57:17,933 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 13:57:17,934 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 13:57:17,934 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 13:57:17,938 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 13:57:17,939 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 13:57:17,940 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 13:57:18,179 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 13:57:18,180 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 13:57:18,181 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 13:57:18,182 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 13:57:18,190 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 13:57:18,191 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 13:57:18,192 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 13:57:18,193 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 13:57:18,193 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 13:57:18,194 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 13:57:18,195 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 13:57:18,338 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 13:57:18,377 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 13:57:18,387 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 13:57:18,417 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 13:57:18,426 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 13:57:18,426 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 13:57:18,482 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 13:57:18,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:57:18,532 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:57:18,546 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_bf970104-1f41-4aa2-a741-bb5b24451f1b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4497,4510] [2022-12-14 13:57:18,546 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_bf970104-1f41-4aa2-a741-bb5b24451f1b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4557,4570] [2022-12-14 13:57:18,581 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 13:57:18,582 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 13:57:18,582 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 13:57:18,582 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 13:57:18,583 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 13:57:18,588 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 13:57:18,588 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 13:57:18,589 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 13:57:18,590 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 13:57:18,595 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 13:57:18,596 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 13:57:18,596 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 13:57:18,599 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 13:57:18,600 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 13:57:18,600 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 13:57:18,617 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 13:57:18,618 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 13:57:18,618 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 13:57:18,619 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 13:57:18,620 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 13:57:18,620 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 13:57:18,621 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 13:57:18,621 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 13:57:18,621 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 13:57:18,622 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 13:57:18,622 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 13:57:18,639 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 13:57:18,659 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 13:57:18,664 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 13:57:18,679 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 13:57:18,685 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 13:57:18,685 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 13:57:18,706 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 13:57:18,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:57:18,915 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:57:18,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:18 WrapperNode [2022-12-14 13:57:18,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:57:18,916 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:57:18,916 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:57:18,916 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:57:18,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:18" (1/1) ... [2022-12-14 13:57:18,987 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:18" (1/1) ... [2022-12-14 13:57:19,054 INFO L138 Inliner]: procedures = 690, calls = 2630, calls flagged for inlining = 61, calls inlined = 10, statements flattened = 956 [2022-12-14 13:57:19,055 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:57:19,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:57:19,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:57:19,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:57:19,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:18" (1/1) ... [2022-12-14 13:57:19,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:18" (1/1) ... [2022-12-14 13:57:19,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:18" (1/1) ... [2022-12-14 13:57:19,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:18" (1/1) ... [2022-12-14 13:57:19,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:18" (1/1) ... [2022-12-14 13:57:19,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:18" (1/1) ... [2022-12-14 13:57:19,113 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:18" (1/1) ... [2022-12-14 13:57:19,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:18" (1/1) ... [2022-12-14 13:57:19,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:57:19,127 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:57:19,127 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:57:19,127 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:57:19,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:18" (1/1) ... [2022-12-14 13:57:19,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:57:19,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf970104-1f41-4aa2-a741-bb5b24451f1b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:57:19,150 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf970104-1f41-4aa2-a741-bb5b24451f1b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:57:19,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf970104-1f41-4aa2-a741-bb5b24451f1b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:57:19,184 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2022-12-14 13:57:19,184 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2022-12-14 13:57:19,184 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-12-14 13:57:19,184 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-12-14 13:57:19,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 13:57:19,184 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-14 13:57:19,184 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-14 13:57:19,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2022-12-14 13:57:19,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 13:57:19,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 13:57:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 13:57:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 13:57:19,185 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 13:57:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 13:57:19,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 13:57:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 13:57:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:57:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 13:57:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:57:19,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:57:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-14 13:57:19,185 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-14 13:57:19,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 13:57:19,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 13:57:19,186 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 13:57:19,186 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 13:57:19,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 13:57:19,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 13:57:19,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 13:57:19,186 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-12-14 13:57:19,186 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-12-14 13:57:19,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 13:57:19,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2022-12-14 13:57:19,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:57:19,397 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:57:19,399 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:57:20,422 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:57:20,582 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:57:20,582 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 13:57:20,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:57:20 BoogieIcfgContainer [2022-12-14 13:57:20,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:57:20,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:57:20,586 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:57:20,588 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:57:20,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:57:16" (1/3) ... [2022-12-14 13:57:20,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd44a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:57:20, skipping insertion in model container [2022-12-14 13:57:20,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:18" (2/3) ... [2022-12-14 13:57:20,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd44a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:57:20, skipping insertion in model container [2022-12-14 13:57:20,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:57:20" (3/3) ... [2022-12-14 13:57:20,590 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_u8_harness.i [2022-12-14 13:57:20,605 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:57:20,605 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 13:57:20,639 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:57:20,644 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;@792f3e88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:57:20,644 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 13:57:20,647 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) [2022-12-14 13:57:20,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-14 13:57:20,653 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:57:20,654 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] [2022-12-14 13:57:20,654 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:57:20,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:57:20,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1719814731, now seen corresponding path program 1 times [2022-12-14 13:57:20,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:57:20,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190534698] [2022-12-14 13:57:20,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:57:20,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:57:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:57:26,710 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-12-14 13:57:26,711 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:57:26,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190534698] [2022-12-14 13:57:26,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190534698] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:57:26,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453160998] [2022-12-14 13:57:26,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:57:26,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:57:26,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf970104-1f41-4aa2-a741-bb5b24451f1b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:57:26,713 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf970104-1f41-4aa2-a741-bb5b24451f1b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:57:26,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf970104-1f41-4aa2-a741-bb5b24451f1b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 13:57:27,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:57:27,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 2703 conjuncts, 111 conjunts are in the unsatisfiable core [2022-12-14 13:57:27,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:57:27,447 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 [2022-12-14 13:57:27,453 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 [2022-12-14 13:57:30,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:57:30,223 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 13:57:30,224 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 [2022-12-14 13:57:30,233 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:57:30,236 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 13:57:30,236 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 [2022-12-14 13:57:30,247 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 13:57:30,247 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 [2022-12-14 13:57:30,344 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 52 proven. 18 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 13:57:30,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:57:31,139 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 14202 disjunctions. This might take some time... [2022-12-14 13:57:43,236 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 13413 disjunctions.