./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_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_57dbe467-d23b-4625-ad2e-38ba70d1474d/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57dbe467-d23b-4625-ad2e-38ba70d1474d/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_57dbe467-d23b-4625-ad2e-38ba70d1474d/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57dbe467-d23b-4625-ad2e-38ba70d1474d/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57dbe467-d23b-4625-ad2e-38ba70d1474d/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_57dbe467-d23b-4625-ad2e-38ba70d1474d/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 efe93c285b9cfe4b236eb7cc9957c6e5b1b94bff3322775b8e8d61a9769c319e --- 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 [2022-11-26 00:00:43,570 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:00:43,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:00:43,599 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:00:43,599 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:00:43,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:00:43,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:00:43,608 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:00:43,610 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:00:43,616 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:00:43,618 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:00:43,620 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:00:43,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:00:43,626 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:00:43,628 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:00:43,630 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:00:43,632 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:00:43,633 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:00:43,634 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:00:43,640 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:00:43,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:00:43,644 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:00:43,645 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:00:43,646 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:00:43,656 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:00:43,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:00:43,657 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:00:43,659 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:00:43,659 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:00:43,660 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:00:43,661 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:00:43,662 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:00:43,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:00:43,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:00:43,667 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:00:43,667 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:00:43,668 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:00:43,668 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:00:43,668 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:00:43,669 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:00:43,670 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:00:43,670 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57dbe467-d23b-4625-ad2e-38ba70d1474d/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-26 00:00:43,692 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:00:43,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:00:43,693 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:00:43,693 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:00:43,694 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:00:43,694 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:00:43,694 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:00:43,695 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:00:43,695 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:00:43,695 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:00:43,695 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:00:43,696 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:00:43,696 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:00:43,696 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:00:43,696 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:00:43,697 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:00:43,697 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:00:43,697 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:00:43,698 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:00:43,698 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:00:43,698 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:00:43,698 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:00:43,699 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:00:43,699 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:00:43,699 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:00:43,699 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:00:43,700 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:00:43,700 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:00:43,700 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:00:43,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:00:43,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:00:43,701 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:00:43,701 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:00:43,701 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:00:43,702 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:00:43,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:00:43,702 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:00:43,702 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:00:43,703 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_57dbe467-d23b-4625-ad2e-38ba70d1474d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57dbe467-d23b-4625-ad2e-38ba70d1474d/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efe93c285b9cfe4b236eb7cc9957c6e5b1b94bff3322775b8e8d61a9769c319e [2022-11-26 00:00:43,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:00:44,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:00:44,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:00:44,036 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:00:44,037 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:00:44,038 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57dbe467-d23b-4625-ad2e-38ba70d1474d/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i [2022-11-26 00:00:47,096 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:00:47,638 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:00:47,640 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57dbe467-d23b-4625-ad2e-38ba70d1474d/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i [2022-11-26 00:00:47,684 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57dbe467-d23b-4625-ad2e-38ba70d1474d/bin/utaipan-ByfvJB40ur/data/51119b2e1/988e90ffa6a84c3c8639e5a974b55f21/FLAG6e2512407 [2022-11-26 00:00:47,703 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57dbe467-d23b-4625-ad2e-38ba70d1474d/bin/utaipan-ByfvJB40ur/data/51119b2e1/988e90ffa6a84c3c8639e5a974b55f21 [2022-11-26 00:00:47,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:00:47,709 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:00:47,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:00:47,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:00:47,717 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:00:47,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:47" (1/1) ... [2022-11-26 00:00:47,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@486e6961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:47, skipping insertion in model container [2022-11-26 00:00:47,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:47" (1/1) ... [2022-11-26 00:00:47,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:00:47,844 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:00:48,172 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_57dbe467-d23b-4625-ad2e-38ba70d1474d/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4489,4502] [2022-11-26 00:00:48,184 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_57dbe467-d23b-4625-ad2e-38ba70d1474d/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4549,4562] [2022-11-26 00:00:49,502 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:00:49,504 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:00:49,504 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:00:49,506 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:00:49,507 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:00:49,533 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:00:49,541 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:00:49,557 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:00:49,558 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:00:49,657 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:00:49,658 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:00:49,659 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:00:49,665 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-26 00:00:49,668 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-26 00:00:49,674 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-26 00:00:50,041 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-26 00:00:50,043 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-26 00:00:50,047 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-26 00:00:50,048 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-26 00:00:50,056 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-26 00:00:50,059 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-26 00:00:50,060 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-26 00:00:50,061 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-26 00:00:50,069 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-26 00:00:50,070 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-26 00:00:50,071 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-26 00:00:50,361 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-26 00:00:50,400 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:00:50,421 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-11-26 00:00:50,434 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:00:50,477 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:00:50,477 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:00:50,538 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:00:50,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:00:50,609 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:00:50,626 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_57dbe467-d23b-4625-ad2e-38ba70d1474d/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4489,4502] [2022-11-26 00:00:50,627 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_57dbe467-d23b-4625-ad2e-38ba70d1474d/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4549,4562] [2022-11-26 00:00:50,669 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:00:50,669 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:00:50,670 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:00:50,670 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:00:50,671 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:00:50,680 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:00:50,680 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:00:50,682 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:00:50,682 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:00:50,690 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:00:50,699 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:00:50,700 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:00:50,704 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-26 00:00:50,710 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-26 00:00:50,713 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-26 00:00:50,760 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-26 00:00:50,763 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-26 00:00:50,765 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-26 00:00:50,766 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-26 00:00:50,767 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-26 00:00:50,768 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-26 00:00:50,769 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-26 00:00:50,769 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-26 00:00:50,770 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-26 00:00:50,770 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-26 00:00:50,774 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-26 00:00:50,810 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-26 00:00:50,827 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:00:50,840 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-11-26 00:00:50,848 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:00:50,930 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:00:50,932 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:00:50,981 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:00:50,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:00:51,295 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:00:51,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:51 WrapperNode [2022-11-26 00:00:51,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:00:51,299 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:00:51,299 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:00:51,300 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:00:51,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:51" (1/1) ... [2022-11-26 00:00:51,435 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:51" (1/1) ... [2022-11-26 00:00:51,512 INFO L138 Inliner]: procedures = 691, calls = 2665, calls flagged for inlining = 60, calls inlined = 6, statements flattened = 886 [2022-11-26 00:00:51,513 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:00:51,514 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:00:51,514 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:00:51,514 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:00:51,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:51" (1/1) ... [2022-11-26 00:00:51,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:51" (1/1) ... [2022-11-26 00:00:51,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:51" (1/1) ... [2022-11-26 00:00:51,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:51" (1/1) ... [2022-11-26 00:00:51,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:51" (1/1) ... [2022-11-26 00:00:51,582 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:51" (1/1) ... [2022-11-26 00:00:51,589 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:51" (1/1) ... [2022-11-26 00:00:51,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:51" (1/1) ... [2022-11-26 00:00:51,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:00:51,605 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:00:51,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:00:51,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:00:51,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:51" (1/1) ... [2022-11-26 00:00:51,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:00:51,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57dbe467-d23b-4625-ad2e-38ba70d1474d/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:00:51,685 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57dbe467-d23b-4625-ad2e-38ba70d1474d/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:00:51,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57dbe467-d23b-4625-ad2e-38ba70d1474d/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:00:51,739 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-11-26 00:00:51,739 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-11-26 00:00:51,739 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-26 00:00:51,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:00:51,740 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-26 00:00:51,740 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-26 00:00:51,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:00:51,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-26 00:00:51,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-26 00:00:51,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:00:51,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:00:51,742 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2022-11-26 00:00:51,742 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2022-11-26 00:00:51,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:00:51,743 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member [2022-11-26 00:00:51,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member [2022-11-26 00:00:51,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:00:51,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:00:51,745 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-26 00:00:51,745 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-26 00:00:51,745 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-26 00:00:51,746 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-26 00:00:51,746 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-26 00:00:51,746 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-26 00:00:51,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:00:51,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:00:51,748 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2022-11-26 00:00:51,748 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2022-11-26 00:00:51,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 00:00:51,748 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-26 00:00:51,748 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-26 00:00:51,749 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-26 00:00:51,749 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-26 00:00:51,749 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded [2022-11-26 00:00:51,750 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded [2022-11-26 00:00:51,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:00:51,750 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_buf_equivalence [2022-11-26 00:00:51,750 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_buf_equivalence [2022-11-26 00:00:51,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:00:52,160 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:00:52,163 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:00:53,800 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:00:54,103 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:00:54,106 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:00:54,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:54 BoogieIcfgContainer [2022-11-26 00:00:54,111 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:00:54,115 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:00:54,115 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:00:54,119 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:00:54,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:00:47" (1/3) ... [2022-11-26 00:00:54,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b80a99e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:00:54, skipping insertion in model container [2022-11-26 00:00:54,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:51" (2/3) ... [2022-11-26 00:00:54,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b80a99e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:00:54, skipping insertion in model container [2022-11-26 00:00:54,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:54" (3/3) ... [2022-11-26 00:00:54,132 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_harness.i [2022-11-26 00:00:54,153 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:00:54,153 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:00:54,224 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:00:54,236 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;@6865b2e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:00:54,237 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:00:54,242 INFO L276 IsEmpty]: Start isEmpty. Operand has 122 states, 61 states have (on average 1.180327868852459) internal successors, (72), 62 states have internal predecessors, (72), 46 states have call successors, (46), 13 states have call predecessors, (46), 13 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-11-26 00:00:54,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-26 00:00:54,254 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:54,255 INFO L195 NwaCegarLoop]: trace histogram [7, 4, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:00:54,256 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:00:54,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:54,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1989659951, now seen corresponding path program 1 times [2022-11-26 00:00:54,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:54,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947204242] [2022-11-26 00:00:54,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:54,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:59,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:01:21,868 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-26 00:01:21,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:01:21,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947204242] [2022-11-26 00:01:21,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947204242] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:01:21,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047909050] [2022-11-26 00:01:21,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:01:21,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:01:21,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57dbe467-d23b-4625-ad2e-38ba70d1474d/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:01:21,879 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57dbe467-d23b-4625-ad2e-38ba70d1474d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:01:21,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57dbe467-d23b-4625-ad2e-38ba70d1474d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:01:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:01:22,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 2753 conjuncts, 132 conjunts are in the unsatisfiable core [2022-11-26 00:01:22,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:01:22,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-26 00:01:23,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:01:24,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:01:24,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:01:24,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:01:24,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:01:24,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 51 [2022-11-26 00:01:24,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 38 [2022-11-26 00:01:24,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 34 [2022-11-26 00:01:24,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-11-26 00:01:25,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-11-26 00:01:36,429 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:01:36,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 47 [2022-11-26 00:01:36,506 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:01:36,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 16 case distinctions, treesize of input 141 treesize of output 133 [2022-11-26 00:01:37,499 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 20 proven. 35 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-26 00:01:37,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:01:40,617 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 76449 disjunctions. This might take some time... [2022-11-26 00:09:54,647 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 76449 disjunctions.