./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_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_24f1e971-bf89-41b6-af53-9f373ecda264/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f1e971-bf89-41b6-af53-9f373ecda264/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_24f1e971-bf89-41b6-af53-9f373ecda264/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f1e971-bf89-41b6-af53-9f373ecda264/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f1e971-bf89-41b6-af53-9f373ecda264/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_24f1e971-bf89-41b6-af53-9f373ecda264/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 13ec24500153ff48401c44b6cbf6e64bbffda498093f21927cfcfb52ad2376ab --- 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 00:15:11,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:15:11,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:15:11,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:15:11,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:15:11,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:15:11,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:15:11,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:15:11,928 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:15:11,929 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:15:11,930 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:15:11,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:15:11,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:15:11,932 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:15:11,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:15:11,935 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:15:11,936 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:15:11,937 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:15:11,939 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:15:11,941 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:15:11,942 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:15:11,944 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:15:11,945 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:15:11,946 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:15:11,949 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:15:11,950 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:15:11,950 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:15:11,951 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:15:11,952 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:15:11,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:15:11,953 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:15:11,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:15:11,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:15:11,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:15:11,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:15:11,957 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:15:11,958 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:15:11,958 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:15:11,959 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:15:11,960 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:15:11,960 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:15:11,961 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f1e971-bf89-41b6-af53-9f373ecda264/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-26 00:15:11,983 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:15:11,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:15:11,984 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:15:11,984 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:15:11,985 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:15:11,985 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:15:11,985 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:15:11,985 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:15:11,986 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:15:11,986 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:15:11,986 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:15:11,986 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:15:11,986 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:15:11,987 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:15:11,987 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:15:11,987 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:15:11,987 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:15:11,988 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:15:11,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:15:11,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:15:11,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:15:11,989 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:15:11,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:15:11,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:15:11,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:15:11,990 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:15:11,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:15:11,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:15:11,991 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:15:11,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:15:11,991 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:15:11,991 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:15:11,991 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:15:11,992 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:15:11,992 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:15:11,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:15:11,992 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:15:11,993 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:15:11,993 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_24f1e971-bf89-41b6-af53-9f373ecda264/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f1e971-bf89-41b6-af53-9f373ecda264/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13ec24500153ff48401c44b6cbf6e64bbffda498093f21927cfcfb52ad2376ab [2022-11-26 00:15:12,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:15:12,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:15:12,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:15:12,264 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:15:12,265 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:15:12,266 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f1e971-bf89-41b6-af53-9f373ecda264/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i [2022-11-26 00:15:15,410 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:15:15,966 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:15:15,970 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f1e971-bf89-41b6-af53-9f373ecda264/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i [2022-11-26 00:15:16,016 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f1e971-bf89-41b6-af53-9f373ecda264/bin/utaipan-ByfvJB40ur/data/b71b2ec35/382c5d1d7f254c0baee17ea29fe65958/FLAGef31d3cd0 [2022-11-26 00:15:16,031 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f1e971-bf89-41b6-af53-9f373ecda264/bin/utaipan-ByfvJB40ur/data/b71b2ec35/382c5d1d7f254c0baee17ea29fe65958 [2022-11-26 00:15:16,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:15:16,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:15:16,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:15:16,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:15:16,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:15:16,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:15:16" (1/1) ... [2022-11-26 00:15:16,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34159794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:16, skipping insertion in model container [2022-11-26 00:15:16,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:15:16" (1/1) ... [2022-11-26 00:15:16,056 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:15:16,170 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:15:16,414 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_24f1e971-bf89-41b6-af53-9f373ecda264/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i[4498,4511] [2022-11-26 00:15:16,423 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_24f1e971-bf89-41b6-af53-9f373ecda264/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i[4558,4571] [2022-11-26 00:15:17,444 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:15:17,445 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:15:17,446 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:15:17,446 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:15:17,447 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:15:17,460 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:15:17,461 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:15:17,463 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:15:17,464 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:15:17,551 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:15:17,551 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:15:17,552 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:15:17,557 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-26 00:15:17,559 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-26 00:15:17,559 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-26 00:15:17,897 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-26 00:15:17,898 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-26 00:15:17,899 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-26 00:15:17,900 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-26 00:15:17,901 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-26 00:15:17,903 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-26 00:15:17,904 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-26 00:15:17,904 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-26 00:15:17,905 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-26 00:15:17,906 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-26 00:15:17,906 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-26 00:15:18,086 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-26 00:15:18,126 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-11-26 00:15:18,138 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:15:18,170 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:15:18,179 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:15:18,180 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:15:18,264 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:15:18,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:15:18,348 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:15:18,376 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_24f1e971-bf89-41b6-af53-9f373ecda264/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i[4498,4511] [2022-11-26 00:15:18,376 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_24f1e971-bf89-41b6-af53-9f373ecda264/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i[4558,4571] [2022-11-26 00:15:18,442 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:15:18,442 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:15:18,443 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:15:18,443 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:15:18,444 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:15:18,460 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:15:18,463 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:15:18,465 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:15:18,468 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:15:18,516 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:15:18,516 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:15:18,516 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:15:18,522 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-26 00:15:18,523 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-26 00:15:18,527 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-26 00:15:18,552 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-26 00:15:18,555 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-26 00:15:18,556 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-26 00:15:18,556 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-26 00:15:18,557 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-26 00:15:18,558 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-26 00:15:18,559 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-26 00:15:18,559 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-26 00:15:18,562 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-26 00:15:18,563 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-26 00:15:18,564 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-26 00:15:18,600 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-26 00:15:18,637 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-11-26 00:15:18,645 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:15:18,662 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:15:18,668 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:15:18,669 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:15:18,704 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:15:18,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:15:18,974 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:15:18,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:18 WrapperNode [2022-11-26 00:15:18,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:15:18,976 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:15:18,976 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:15:18,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:15:18,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:18" (1/1) ... [2022-11-26 00:15:19,082 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:18" (1/1) ... [2022-11-26 00:15:19,193 INFO L138 Inliner]: procedures = 690, calls = 2638, calls flagged for inlining = 61, calls inlined = 9, statements flattened = 867 [2022-11-26 00:15:19,193 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:15:19,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:15:19,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:15:19,195 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:15:19,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:18" (1/1) ... [2022-11-26 00:15:19,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:18" (1/1) ... [2022-11-26 00:15:19,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:18" (1/1) ... [2022-11-26 00:15:19,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:18" (1/1) ... [2022-11-26 00:15:19,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:18" (1/1) ... [2022-11-26 00:15:19,283 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:18" (1/1) ... [2022-11-26 00:15:19,291 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:18" (1/1) ... [2022-11-26 00:15:19,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:18" (1/1) ... [2022-11-26 00:15:19,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:15:19,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:15:19,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:15:19,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:15:19,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:18" (1/1) ... [2022-11-26 00:15:19,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:15:19,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f1e971-bf89-41b6-af53-9f373ecda264/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:15:19,348 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f1e971-bf89-41b6-af53-9f373ecda264/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:15:19,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f1e971-bf89-41b6-af53-9f373ecda264/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:15:19,391 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-11-26 00:15:19,391 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-11-26 00:15:19,391 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-11-26 00:15:19,392 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-11-26 00:15:19,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:15:19,392 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-26 00:15:19,393 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-26 00:15:19,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:15:19,393 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-26 00:15:19,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-26 00:15:19,394 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_from_buf [2022-11-26 00:15:19,394 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_from_buf [2022-11-26 00:15:19,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:15:19,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:15:19,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:15:19,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:15:19,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:15:19,396 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-26 00:15:19,396 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-26 00:15:19,396 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-26 00:15:19,397 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-26 00:15:19,397 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-26 00:15:19,397 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-26 00:15:19,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:15:19,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:15:19,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 00:15:19,398 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-26 00:15:19,398 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-26 00:15:19,398 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-26 00:15:19,399 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-26 00:15:19,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:15:19,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:15:19,828 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:15:19,831 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:15:21,246 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:15:21,690 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:15:21,690 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:15:21,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:15:21 BoogieIcfgContainer [2022-11-26 00:15:21,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:15:21,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:15:21,699 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:15:21,703 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:15:21,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:15:16" (1/3) ... [2022-11-26 00:15:21,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2cf401 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:15:21, skipping insertion in model container [2022-11-26 00:15:21,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:18" (2/3) ... [2022-11-26 00:15:21,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2cf401 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:15:21, skipping insertion in model container [2022-11-26 00:15:21,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:15:21" (3/3) ... [2022-11-26 00:15:21,711 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_from_buf_harness.i [2022-11-26 00:15:21,730 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:15:21,732 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:15:21,794 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:15:21,805 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;@6879d9d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:15:21,810 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:15:21,815 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 48 states have (on average 1.1875) internal successors, (57), 49 states have internal predecessors, (57), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2022-11-26 00:15:21,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-26 00:15:21,826 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:21,826 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-26 00:15:21,827 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:15:21,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:21,835 INFO L85 PathProgramCache]: Analyzing trace with hash 2075530696, now seen corresponding path program 1 times [2022-11-26 00:15:21,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:15:21,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771637939] [2022-11-26 00:15:21,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:21,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:15:22,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:29,324 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-26 00:15:29,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:15:29,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771637939] [2022-11-26 00:15:29,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771637939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:15:29,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:15:29,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-26 00:15:29,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072738328] [2022-11-26 00:15:29,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:15:29,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-26 00:15:29,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:15:29,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-26 00:15:29,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:15:29,365 INFO L87 Difference]: Start difference. First operand has 88 states, 48 states have (on average 1.1875) internal successors, (57), 49 states have internal predecessors, (57), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 16 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 8 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) [2022-11-26 00:15:30,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:15:30,919 INFO L93 Difference]: Finished difference Result 191 states and 276 transitions. [2022-11-26 00:15:30,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-26 00:15:30,922 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 8 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) Word has length 43 [2022-11-26 00:15:30,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:15:30,931 INFO L225 Difference]: With dead ends: 191 [2022-11-26 00:15:30,931 INFO L226 Difference]: Without dead ends: 128 [2022-11-26 00:15:30,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:15:30,945 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 88 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:15:30,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 845 Invalid, 923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 880 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:15:30,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-11-26 00:15:31,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 98. [2022-11-26 00:15:31,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 54 states have internal predecessors, (58), 33 states have call successors, (33), 12 states have call predecessors, (33), 12 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2022-11-26 00:15:31,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 123 transitions. [2022-11-26 00:15:31,017 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 123 transitions. Word has length 43 [2022-11-26 00:15:31,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:15:31,018 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 123 transitions. [2022-11-26 00:15:31,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 8 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) [2022-11-26 00:15:31,018 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 123 transitions. [2022-11-26 00:15:31,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-26 00:15:31,020 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:31,021 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2022-11-26 00:15:31,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:15:31,021 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:15:31,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:31,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1091548635, now seen corresponding path program 1 times [2022-11-26 00:15:31,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:15:31,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744159642] [2022-11-26 00:15:31,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:31,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:15:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:40,308 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-26 00:15:40,309 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:15:40,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744159642] [2022-11-26 00:15:40,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744159642] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:15:40,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:15:40,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-26 00:15:40,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440430349] [2022-11-26 00:15:40,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:15:40,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-26 00:15:40,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:15:40,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-26 00:15:40,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-11-26 00:15:40,313 INFO L87 Difference]: Start difference. First operand 98 states and 123 transitions. Second operand has 19 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 10 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2022-11-26 00:15:42,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:15:42,616 INFO L93 Difference]: Finished difference Result 134 states and 173 transitions. [2022-11-26 00:15:42,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-26 00:15:42,617 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 10 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 47 [2022-11-26 00:15:42,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:15:42,619 INFO L225 Difference]: With dead ends: 134 [2022-11-26 00:15:42,619 INFO L226 Difference]: Without dead ends: 132 [2022-11-26 00:15:42,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=112, Invalid=818, Unknown=0, NotChecked=0, Total=930 [2022-11-26 00:15:42,621 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 72 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 1746 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 1819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:15:42,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 896 Invalid, 1819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1746 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-26 00:15:42,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-11-26 00:15:42,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 88. [2022-11-26 00:15:42,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 48 states have (on average 1.125) internal successors, (54), 49 states have internal predecessors, (54), 28 states have call successors, (28), 11 states have call predecessors, (28), 11 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-11-26 00:15:42,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 109 transitions. [2022-11-26 00:15:42,644 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 109 transitions. Word has length 47 [2022-11-26 00:15:42,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:15:42,644 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 109 transitions. [2022-11-26 00:15:42,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 10 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2022-11-26 00:15:42,645 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 109 transitions. [2022-11-26 00:15:42,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-26 00:15:42,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:42,646 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 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] [2022-11-26 00:15:42,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:15:42,647 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:15:42,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:42,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1403934463, now seen corresponding path program 1 times [2022-11-26 00:15:42,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:15:42,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179918808] [2022-11-26 00:15:42,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:42,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:15:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:57,044 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-26 00:15:57,044 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:15:57,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179918808] [2022-11-26 00:15:57,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179918808] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:15:57,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271303391] [2022-11-26 00:15:57,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:57,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:15:57,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f1e971-bf89-41b6-af53-9f373ecda264/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:15:57,051 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f1e971-bf89-41b6-af53-9f373ecda264/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:15:57,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f1e971-bf89-41b6-af53-9f373ecda264/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:15:57,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:57,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 2603 conjuncts, 130 conjunts are in the unsatisfiable core [2022-11-26 00:15:57,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:15:58,271 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 00:15:58,277 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 00:16:02,252 INFO L321 Elim1Store]: treesize reduction 89, result has 27.6 percent of original size [2022-11-26 00:16:02,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 94 [2022-11-26 00:16:02,292 INFO L321 Elim1Store]: treesize reduction 55, result has 25.7 percent of original size [2022-11-26 00:16:02,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 34 [2022-11-26 00:16:02,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 11 [2022-11-26 00:16:02,363 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:16:02,403 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:16:02,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 25 [2022-11-26 00:16:02,410 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-11-26 00:16:02,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2022-11-26 00:16:02,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 11 [2022-11-26 00:16:04,033 INFO L321 Elim1Store]: treesize reduction 55, result has 25.7 percent of original size [2022-11-26 00:16:04,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 34 [2022-11-26 00:16:04,125 INFO L321 Elim1Store]: treesize reduction 89, result has 27.6 percent of original size [2022-11-26 00:16:04,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 94 [2022-11-26 00:16:04,180 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-26 00:16:04,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 54 [2022-11-26 00:16:04,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 11 [2022-11-26 00:16:04,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:04,239 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:16:04,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 37 [2022-11-26 00:16:04,309 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 9 treesize of output 7 [2022-11-26 00:16:04,445 INFO L321 Elim1Store]: treesize reduction 55, result has 25.7 percent of original size [2022-11-26 00:16:04,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 34 [2022-11-26 00:16:04,525 INFO L321 Elim1Store]: treesize reduction 89, result has 27.6 percent of original size [2022-11-26 00:16:04,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 94 [2022-11-26 00:16:04,581 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-26 00:16:04,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 54 [2022-11-26 00:16:04,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 11 [2022-11-26 00:16:04,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:04,631 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:16:04,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 37 [2022-11-26 00:16:04,675 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 9 treesize of output 7 [2022-11-26 00:16:04,797 INFO L321 Elim1Store]: treesize reduction 55, result has 25.7 percent of original size [2022-11-26 00:16:04,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 34 [2022-11-26 00:16:04,882 INFO L321 Elim1Store]: treesize reduction 89, result has 27.6 percent of original size [2022-11-26 00:16:04,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 94 [2022-11-26 00:16:04,947 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-26 00:16:04,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 54 [2022-11-26 00:16:04,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 11 [2022-11-26 00:16:05,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:05,017 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:16:05,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 37 [2022-11-26 00:16:05,049 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 9 treesize of output 7 [2022-11-26 00:16:05,184 INFO L321 Elim1Store]: treesize reduction 55, result has 25.7 percent of original size [2022-11-26 00:16:05,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 34 [2022-11-26 00:16:05,275 INFO L321 Elim1Store]: treesize reduction 89, result has 27.6 percent of original size [2022-11-26 00:16:05,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 94 [2022-11-26 00:16:05,315 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-26 00:16:05,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 54 [2022-11-26 00:16:05,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 11 [2022-11-26 00:16:05,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:05,364 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:16:05,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 37 [2022-11-26 00:16:05,424 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 9 treesize of output 7 [2022-11-26 00:16:05,833 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_old(#memory_$Pointer$.base)| |c_aws_byte_cursor_from_buf_#in~buf.base|) (+ |c_aws_byte_cursor_from_buf_#in~buf.offset| 8)))) (or (exists ((v_ArrVal_200 Int) (|aws_byte_cursor_from_buf_~#cur~0.base| Int) (v_ArrVal_197 Int)) (and (not (= (select (select |c_#memory_$Pointer$.base| |aws_byte_cursor_from_buf_~#cur~0.base|) 8) 0)) (= (store |c_old(#memory_$Pointer$.base)| |aws_byte_cursor_from_buf_~#cur~0.base| (store (store (select |c_old(#memory_$Pointer$.base)| |aws_byte_cursor_from_buf_~#cur~0.base|) 8 .cse0) 0 v_ArrVal_197)) |c_#memory_$Pointer$.base|) (not (= |aws_byte_cursor_from_buf_~#cur~0.base| 0)) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_byte_cursor_from_buf_~#cur~0.base| (let ((.cse1 (store (select |c_old(#memory_int)| |aws_byte_cursor_from_buf_~#cur~0.base|) 8 v_ArrVal_200))) (store .cse1 0 (select (select (store |c_old(#memory_int)| |aws_byte_cursor_from_buf_~#cur~0.base| .cse1) |c_aws_byte_cursor_from_buf_#in~buf.base|) |c_aws_byte_cursor_from_buf_#in~buf.offset|))))))) (exists ((v_ArrVal_200 Int) (|aws_byte_cursor_from_buf_~#cur~0.base| Int) (v_ArrVal_197 Int)) (and (= (store |c_old(#memory_$Pointer$.base)| |aws_byte_cursor_from_buf_~#cur~0.base| (store (store (select |c_old(#memory_$Pointer$.base)| |aws_byte_cursor_from_buf_~#cur~0.base|) 8 .cse0) 0 v_ArrVal_197)) |c_#memory_$Pointer$.base|) (not (= |aws_byte_cursor_from_buf_~#cur~0.base| 0)) (= (mod (select (select |c_#memory_int| |aws_byte_cursor_from_buf_~#cur~0.base|) 0) 18446744073709551616) 0) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_byte_cursor_from_buf_~#cur~0.base| (let ((.cse2 (store (select |c_old(#memory_int)| |aws_byte_cursor_from_buf_~#cur~0.base|) 8 v_ArrVal_200))) (store .cse2 0 (select (select (store |c_old(#memory_int)| |aws_byte_cursor_from_buf_~#cur~0.base| .cse2) |c_aws_byte_cursor_from_buf_#in~buf.base|) |c_aws_byte_cursor_from_buf_#in~buf.offset|))))))) (exists ((v_ArrVal_200 Int) (|aws_byte_cursor_from_buf_~#cur~0.base| Int) (v_ArrVal_197 Int)) (and (= (store |c_old(#memory_$Pointer$.base)| |aws_byte_cursor_from_buf_~#cur~0.base| (store (store (select |c_old(#memory_$Pointer$.base)| |aws_byte_cursor_from_buf_~#cur~0.base|) 8 .cse0) 0 v_ArrVal_197)) |c_#memory_$Pointer$.base|) (not (= (select (select |c_#memory_$Pointer$.offset| |aws_byte_cursor_from_buf_~#cur~0.base|) 8) 0)) (not (= |aws_byte_cursor_from_buf_~#cur~0.base| 0)) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_byte_cursor_from_buf_~#cur~0.base| (let ((.cse3 (store (select |c_old(#memory_int)| |aws_byte_cursor_from_buf_~#cur~0.base|) 8 v_ArrVal_200))) (store .cse3 0 (select (select (store |c_old(#memory_int)| |aws_byte_cursor_from_buf_~#cur~0.base| .cse3) |c_aws_byte_cursor_from_buf_#in~buf.base|) |c_aws_byte_cursor_from_buf_#in~buf.offset|))))))))) is different from true [2022-11-26 00:16:05,941 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:16:06,122 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-26 00:16:06,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 190 treesize of output 241 [2022-11-26 00:16:06,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:06,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:06,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:06,217 INFO L321 Elim1Store]: treesize reduction 48, result has 31.4 percent of original size [2022-11-26 00:16:06,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 127 treesize of output 201 [2022-11-26 00:16:06,828 INFO L321 Elim1Store]: treesize reduction 78, result has 29.7 percent of original size [2022-11-26 00:16:06,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 106 treesize of output 121 [2022-11-26 00:16:06,848 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 9 treesize of output 7 [2022-11-26 00:16:06,910 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 57 treesize of output 37 [2022-11-26 00:16:06,943 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 57 treesize of output 37 [2022-11-26 00:16:07,060 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 57 treesize of output 37 [2022-11-26 00:16:07,303 INFO L321 Elim1Store]: treesize reduction 78, result has 29.7 percent of original size [2022-11-26 00:16:07,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 106 treesize of output 121 [2022-11-26 00:16:07,320 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 9 treesize of output 7 [2022-11-26 00:16:07,354 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 57 treesize of output 37 [2022-11-26 00:16:07,403 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 57 treesize of output 37 [2022-11-26 00:16:07,439 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 57 treesize of output 37 [2022-11-26 00:16:07,825 INFO L321 Elim1Store]: treesize reduction 98, result has 28.5 percent of original size [2022-11-26 00:16:07,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 74 treesize of output 99 [2022-11-26 00:16:08,039 INFO L321 Elim1Store]: treesize reduction 112, result has 22.8 percent of original size [2022-11-26 00:16:08,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 8 case distinctions, treesize of input 648 treesize of output 645 [2022-11-26 00:16:08,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:08,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 443 treesize of output 421 [2022-11-26 00:16:09,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:09,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 125 treesize of output 105 [2022-11-26 00:16:09,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:09,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 125 treesize of output 105 [2022-11-26 00:16:09,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:09,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 301 treesize of output 281 [2022-11-26 00:16:09,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:09,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 162 treesize of output 128 [2022-11-26 00:16:10,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:10,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 162 treesize of output 128 [2022-11-26 00:16:10,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:16:10,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 40 treesize of output 28 [2022-11-26 00:16:10,284 INFO L321 Elim1Store]: treesize reduction 39, result has 35.0 percent of original size [2022-11-26 00:16:10,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 65 treesize of output 62 [2022-11-26 00:16:10,298 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 9 treesize of output 7 [2022-11-26 00:16:10,316 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 33 treesize of output 21 [2022-11-26 00:16:10,342 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 33 treesize of output 21 [2022-11-26 00:16:13,887 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:16:13,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 81 treesize of output 65 [2022-11-26 00:16:13,929 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:16:13,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2022-11-26 00:16:14,186 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 00:16:14,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:16:17,295 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 76449 disjunctions. This might take some time... [2022-11-26 00:24:09,552 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 76449 disjunctions.