./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f6e345-b2f3-45e7-b646-92325e35eb7b/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f6e345-b2f3-45e7-b646-92325e35eb7b/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_41f6e345-b2f3-45e7-b646-92325e35eb7b/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f6e345-b2f3-45e7-b646-92325e35eb7b/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f6e345-b2f3-45e7-b646-92325e35eb7b/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_41f6e345-b2f3-45e7-b646-92325e35eb7b/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 0658a835d559c56129f1a85a00e9d3bbd205d66ef64b5c7d14ae72b3d1b496e0 --- 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 00:37:10,801 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:37:10,804 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:37:10,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:37:10,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:37:10,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:37:10,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:37:10,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:37:10,844 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:37:10,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:37:10,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:37:10,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:37:10,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:37:10,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:37:10,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:37:10,861 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:37:10,863 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:37:10,863 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:37:10,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:37:10,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:37:10,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:37:10,875 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:37:10,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:37:10,877 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:37:10,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:37:10,888 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:37:10,888 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:37:10,890 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:37:10,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:37:10,892 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:37:10,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:37:10,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:37:10,896 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:37:10,898 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:37:10,899 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:37:10,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:37:10,900 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:37:10,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:37:10,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:37:10,902 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:37:10,903 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:37:10,904 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f6e345-b2f3-45e7-b646-92325e35eb7b/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-26 00:37:10,943 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:37:10,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:37:10,944 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:37:10,944 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:37:10,946 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:37:10,946 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:37:10,946 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:37:10,947 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:37:10,947 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:37:10,947 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:37:10,948 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:37:10,948 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:37:10,949 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:37:10,949 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:37:10,949 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:37:10,949 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:37:10,950 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:37:10,950 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:37:10,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:37:10,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:37:10,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:37:10,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:37:10,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:37:10,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:37:10,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:37:10,953 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:37:10,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:37:10,954 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:37:10,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:37:10,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:37:10,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:37:10,955 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:37:10,955 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:37:10,955 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:37:10,956 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:37:10,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:37:10,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:37:10,956 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:37:10,957 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_41f6e345-b2f3-45e7-b646-92325e35eb7b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f6e345-b2f3-45e7-b646-92325e35eb7b/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0658a835d559c56129f1a85a00e9d3bbd205d66ef64b5c7d14ae72b3d1b496e0 [2022-11-26 00:37:11,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:37:11,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:37:11,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:37:11,340 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:37:11,341 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:37:11,342 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f6e345-b2f3-45e7-b646-92325e35eb7b/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i [2022-11-26 00:37:14,492 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:37:15,111 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:37:15,112 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f6e345-b2f3-45e7-b646-92325e35eb7b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i [2022-11-26 00:37:15,165 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f6e345-b2f3-45e7-b646-92325e35eb7b/bin/utaipan-ByfvJB40ur/data/5faa79e96/f5651497d1894a7089e10570a6e978ef/FLAG5508ed114 [2022-11-26 00:37:15,181 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f6e345-b2f3-45e7-b646-92325e35eb7b/bin/utaipan-ByfvJB40ur/data/5faa79e96/f5651497d1894a7089e10570a6e978ef [2022-11-26 00:37:15,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:37:15,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:37:15,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:37:15,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:37:15,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:37:15,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:37:15" (1/1) ... [2022-11-26 00:37:15,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2428bb72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:37:15, skipping insertion in model container [2022-11-26 00:37:15,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:37:15" (1/1) ... [2022-11-26 00:37:15,203 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:37:15,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:37:15,550 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_41f6e345-b2f3-45e7-b646-92325e35eb7b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4504,4517] [2022-11-26 00:37:15,558 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_41f6e345-b2f3-45e7-b646-92325e35eb7b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4564,4577] [2022-11-26 00:37:16,699 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:16,699 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:16,700 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:16,701 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:16,702 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:16,724 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:16,725 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:16,727 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:16,728 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:16,820 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:37:16,820 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:37:16,821 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:37:16,826 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-26 00:37:16,828 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-26 00:37:16,829 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-26 00:37:17,178 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-26 00:37:17,182 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-26 00:37:17,184 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-26 00:37:17,185 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-26 00:37:17,187 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-26 00:37:17,192 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-26 00:37:17,194 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-26 00:37:17,198 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-26 00:37:17,199 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-26 00:37:17,201 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-26 00:37:17,204 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-26 00:37:17,391 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-26 00:37:17,415 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:37:17,436 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-11-26 00:37:17,447 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:37:17,486 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:17,487 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:17,553 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:37:17,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:37:17,609 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:37:17,638 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_41f6e345-b2f3-45e7-b646-92325e35eb7b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4504,4517] [2022-11-26 00:37:17,639 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_41f6e345-b2f3-45e7-b646-92325e35eb7b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4564,4577] [2022-11-26 00:37:17,758 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:17,758 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:17,759 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:17,760 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:17,760 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:17,767 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:17,768 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:17,769 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:17,770 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:17,777 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:37:17,777 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:37:17,778 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:37:17,782 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-26 00:37:17,783 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-26 00:37:17,784 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-26 00:37:17,821 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-26 00:37:17,822 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-26 00:37:17,822 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-26 00:37:17,823 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-26 00:37:17,824 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-26 00:37:17,825 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-26 00:37:17,825 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-26 00:37:17,826 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-26 00:37:17,832 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-26 00:37:17,832 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-26 00:37:17,833 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-26 00:37:17,857 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-26 00:37:17,869 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:37:17,879 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-11-26 00:37:17,885 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:37:17,910 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:17,911 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:37:17,936 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:37:17,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:37:18,222 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:37:18,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:37:18 WrapperNode [2022-11-26 00:37:18,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:37:18,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:37:18,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:37:18,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:37:18,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:37:18" (1/1) ... [2022-11-26 00:37:18,353 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:37:18" (1/1) ... [2022-11-26 00:37:18,431 INFO L138 Inliner]: procedures = 691, calls = 2648, calls flagged for inlining = 58, calls inlined = 4, statements flattened = 828 [2022-11-26 00:37:18,444 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:37:18,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:37:18,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:37:18,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:37:18,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:37:18" (1/1) ... [2022-11-26 00:37:18,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:37:18" (1/1) ... [2022-11-26 00:37:18,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:37:18" (1/1) ... [2022-11-26 00:37:18,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:37:18" (1/1) ... [2022-11-26 00:37:18,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:37:18" (1/1) ... [2022-11-26 00:37:18,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:37:18" (1/1) ... [2022-11-26 00:37:18,519 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:37:18" (1/1) ... [2022-11-26 00:37:18,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:37:18" (1/1) ... [2022-11-26 00:37:18,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:37:18,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:37:18,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:37:18,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:37:18,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:37:18" (1/1) ... [2022-11-26 00:37:18,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:37:18,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f6e345-b2f3-45e7-b646-92325e35eb7b/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:37:18,612 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f6e345-b2f3-45e7-b646-92325e35eb7b/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:37:18,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f6e345-b2f3-45e7-b646-92325e35eb7b/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:37:18,667 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-11-26 00:37:18,667 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-11-26 00:37:18,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:37:18,668 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-26 00:37:18,669 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-26 00:37:18,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:37:18,669 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_bounded [2022-11-26 00:37:18,670 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_bounded [2022-11-26 00:37:18,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-26 00:37:18,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-26 00:37:18,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:37:18,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:37:18,670 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2022-11-26 00:37:18,670 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2022-11-26 00:37:18,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:37:18,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:37:18,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:37:18,672 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-26 00:37:18,672 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-26 00:37:18,673 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-26 00:37:18,673 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-26 00:37:18,673 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-26 00:37:18,673 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-26 00:37:18,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:37:18,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:37:18,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 00:37:18,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:37:18,675 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_cursor_has_allocated_buffer_member [2022-11-26 00:37:18,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_cursor_has_allocated_buffer_member [2022-11-26 00:37:18,675 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_compare_lookup [2022-11-26 00:37:18,675 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_compare_lookup [2022-11-26 00:37:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:37:18,990 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:37:18,993 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:37:20,453 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:37:20,708 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:37:20,709 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 00:37:20,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:37:20 BoogieIcfgContainer [2022-11-26 00:37:20,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:37:20,715 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:37:20,715 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:37:20,719 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:37:20,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:37:15" (1/3) ... [2022-11-26 00:37:20,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c81c6f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:37:20, skipping insertion in model container [2022-11-26 00:37:20,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:37:18" (2/3) ... [2022-11-26 00:37:20,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c81c6f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:37:20, skipping insertion in model container [2022-11-26 00:37:20,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:37:20" (3/3) ... [2022-11-26 00:37:20,728 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_compare_lookup_harness.i [2022-11-26 00:37:20,753 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:37:20,754 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:37:20,826 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:37:20,838 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;@4f0f20aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:37:20,843 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:37:20,851 INFO L276 IsEmpty]: Start isEmpty. Operand has 109 states, 56 states have (on average 1.2142857142857142) internal successors, (68), 57 states have internal predecessors, (68), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-11-26 00:37:20,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-26 00:37:20,865 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:37:20,866 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2022-11-26 00:37:20,866 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:37:20,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:37:20,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1596270366, now seen corresponding path program 1 times [2022-11-26 00:37:20,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:37:20,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909776732] [2022-11-26 00:37:20,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:37:20,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:37:22,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:37:30,400 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-26 00:37:30,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:37:30,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909776732] [2022-11-26 00:37:30,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909776732] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:37:30,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902608888] [2022-11-26 00:37:30,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:37:30,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:37:30,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f6e345-b2f3-45e7-b646-92325e35eb7b/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:37:30,407 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f6e345-b2f3-45e7-b646-92325e35eb7b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:37:30,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f6e345-b2f3-45e7-b646-92325e35eb7b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:37:31,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:37:31,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 2642 conjuncts, 99 conjunts are in the unsatisfiable core [2022-11-26 00:37:31,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:37:31,470 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 [2022-11-26 00:37:31,479 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 [2022-11-26 00:37:32,223 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 17 treesize of output 13 [2022-11-26 00:37:32,229 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 17 treesize of output 13 [2022-11-26 00:37:32,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-26 00:37:32,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-26 00:37:32,262 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 [2022-11-26 00:37:34,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:37:34,078 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-26 00:37:34,078 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 53 treesize of output 39 [2022-11-26 00:37:34,084 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:37:34,096 INFO L321 Elim1Store]: treesize reduction 17, result has 15.0 percent of original size [2022-11-26 00:37:34,097 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 32 [2022-11-26 00:37:34,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-26 00:37:34,607 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-26 00:37:34,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:37:36,346 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 14202 disjunctions. This might take some time... [2022-11-26 00:37:52,882 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 13413 disjunctions.