./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_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_e1faccef-2348-467a-8eb5-e544de846f6b/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faccef-2348-467a-8eb5-e544de846f6b/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_e1faccef-2348-467a-8eb5-e544de846f6b/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faccef-2348-467a-8eb5-e544de846f6b/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faccef-2348-467a-8eb5-e544de846f6b/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_e1faccef-2348-467a-8eb5-e544de846f6b/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 e59944759baac4a78b3b5460ff6f3a8abaec03123fb9537d86aeca785269fb41 --- 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 00:07:33,535 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:07:33,538 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:07:33,565 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:07:33,566 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:07:33,567 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:07:33,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:07:33,573 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:07:33,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:07:33,575 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:07:33,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:07:33,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:07:33,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:07:33,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:07:33,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:07:33,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:07:33,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:07:33,591 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:07:33,593 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:07:33,600 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:07:33,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:07:33,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:07:33,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:07:33,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:07:33,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:07:33,611 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:07:33,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:07:33,613 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:07:33,613 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:07:33,620 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:07:33,620 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:07:33,621 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:07:33,623 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:07:33,624 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:07:33,625 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:07:33,625 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:07:33,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:07:33,626 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:07:33,626 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:07:33,628 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:07:33,629 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:07:33,630 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faccef-2348-467a-8eb5-e544de846f6b/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-26 00:07:33,661 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:07:33,661 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:07:33,662 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:07:33,662 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:07:33,663 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:07:33,663 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:07:33,663 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:07:33,663 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:07:33,663 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:07:33,663 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:07:33,664 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:07:33,664 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:07:33,664 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:07:33,664 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:07:33,664 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:07:33,665 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:07:33,665 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:07:33,665 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:07:33,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:07:33,666 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:07:33,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:07:33,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:07:33,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:07:33,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:07:33,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:07:33,667 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:07:33,667 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:07:33,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:07:33,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:07:33,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:07:33,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:07:33,668 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:07:33,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:07:33,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:07:33,669 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:07:33,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:07:33,669 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:07:33,669 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:07:33,669 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_e1faccef-2348-467a-8eb5-e544de846f6b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faccef-2348-467a-8eb5-e544de846f6b/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e59944759baac4a78b3b5460ff6f3a8abaec03123fb9537d86aeca785269fb41 [2022-11-26 00:07:33,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:07:33,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:07:33,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:07:33,985 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:07:33,985 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:07:33,987 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faccef-2348-467a-8eb5-e544de846f6b/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i [2022-11-26 00:07:37,036 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:07:37,632 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:07:37,633 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faccef-2348-467a-8eb5-e544de846f6b/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i [2022-11-26 00:07:37,690 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faccef-2348-467a-8eb5-e544de846f6b/bin/utaipan-ByfvJB40ur/data/60e0fab1e/c977a179c7304b698b6edd8721acd9ff/FLAG1feeba033 [2022-11-26 00:07:37,708 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faccef-2348-467a-8eb5-e544de846f6b/bin/utaipan-ByfvJB40ur/data/60e0fab1e/c977a179c7304b698b6edd8721acd9ff [2022-11-26 00:07:37,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:07:37,715 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:07:37,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:07:37,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:07:37,721 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:07:37,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:07:37" (1/1) ... [2022-11-26 00:07:37,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10508419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:07:37, skipping insertion in model container [2022-11-26 00:07:37,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:07:37" (1/1) ... [2022-11-26 00:07:37,730 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:07:37,830 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:07:38,142 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_e1faccef-2348-467a-8eb5-e544de846f6b/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4497,4510] [2022-11-26 00:07:38,153 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_e1faccef-2348-467a-8eb5-e544de846f6b/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4557,4570] [2022-11-26 00:07:39,447 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:07:39,453 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:07:39,454 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:07:39,455 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:07:39,455 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:07:39,457 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:07:39,459 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:07:39,476 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:07:39,485 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:07:39,486 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:07:39,488 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:07:39,488 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:07:39,591 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:07:39,591 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:07:39,593 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:07:39,615 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-26 00:07:39,617 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-26 00:07:39,619 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-26 00:07:39,987 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-26 00:07:39,988 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-26 00:07:39,989 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-26 00:07:39,990 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-26 00:07:39,992 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-26 00:07:39,994 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-26 00:07:39,995 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-26 00:07:39,996 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-26 00:07:39,997 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-26 00:07:39,997 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-26 00:07:39,998 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-26 00:07:40,218 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-26 00:07:40,273 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:07:40,292 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:07:40,296 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-11-26 00:07:40,317 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:07:40,327 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:07:40,334 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:07:40,335 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:07:40,336 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:07:40,349 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:07:40,358 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:07:40,358 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:07:40,364 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:07:40,373 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:07:40,418 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:07:40,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:07:40,473 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:07:40,486 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_e1faccef-2348-467a-8eb5-e544de846f6b/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4497,4510] [2022-11-26 00:07:40,487 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_e1faccef-2348-467a-8eb5-e544de846f6b/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4557,4570] [2022-11-26 00:07:40,518 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:07:40,520 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:07:40,520 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:07:40,521 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:07:40,521 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:07:40,522 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:07:40,523 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:07:40,528 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:07:40,528 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:07:40,529 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:07:40,530 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:07:40,530 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:07:40,536 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:07:40,537 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:07:40,538 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:07:40,541 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-26 00:07:40,542 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-26 00:07:40,542 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-26 00:07:40,562 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-26 00:07:40,563 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-26 00:07:40,563 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-26 00:07:40,564 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-26 00:07:40,565 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-26 00:07:40,566 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-26 00:07:40,566 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-26 00:07:40,567 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-26 00:07:40,567 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-26 00:07:40,568 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-26 00:07:40,568 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-26 00:07:40,586 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-26 00:07:40,667 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:07:40,673 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:07:40,694 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-11-26 00:07:40,705 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:07:40,716 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:07:40,765 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:07:40,766 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:07:40,766 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:07:40,772 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:07:40,793 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:07:40,793 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:07:40,798 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:07:40,803 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:07:40,848 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:07:40,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:07:41,076 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:07:41,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:07:41 WrapperNode [2022-11-26 00:07:41,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:07:41,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:07:41,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:07:41,078 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:07:41,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:07:41" (1/1) ... [2022-11-26 00:07:41,183 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:07:41" (1/1) ... [2022-11-26 00:07:41,258 INFO L138 Inliner]: procedures = 691, calls = 2618, calls flagged for inlining = 62, calls inlined = 10, statements flattened = 865 [2022-11-26 00:07:41,258 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:07:41,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:07:41,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:07:41,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:07:41,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:07:41" (1/1) ... [2022-11-26 00:07:41,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:07:41" (1/1) ... [2022-11-26 00:07:41,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:07:41" (1/1) ... [2022-11-26 00:07:41,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:07:41" (1/1) ... [2022-11-26 00:07:41,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:07:41" (1/1) ... [2022-11-26 00:07:41,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:07:41" (1/1) ... [2022-11-26 00:07:41,369 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:07:41" (1/1) ... [2022-11-26 00:07:41,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:07:41" (1/1) ... [2022-11-26 00:07:41,393 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:07:41,394 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:07:41,394 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:07:41,394 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:07:41,395 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:07:41" (1/1) ... [2022-11-26 00:07:41,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:07:41,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faccef-2348-467a-8eb5-e544de846f6b/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:07:41,441 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faccef-2348-467a-8eb5-e544de846f6b/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:07:41,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faccef-2348-467a-8eb5-e544de846f6b/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:07:41,481 INFO L130 BoogieDeclarations]: Found specification of procedure htons [2022-11-26 00:07:41,482 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-11-26 00:07:41,483 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-11-26 00:07:41,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:07:41,483 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-26 00:07:41,483 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-26 00:07:41,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:07:41,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-26 00:07:41,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-26 00:07:41,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:07:41,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:07:41,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:07:41,485 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-26 00:07:41,485 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-26 00:07:41,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:07:41,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:07:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-26 00:07:41,486 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-26 00:07:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-26 00:07:41,487 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-26 00:07:41,487 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-26 00:07:41,490 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-26 00:07:41,491 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-26 00:07:41,491 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-26 00:07:41,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:07:41,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:07:41,491 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2022-11-26 00:07:41,492 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2022-11-26 00:07:41,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 00:07:41,492 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-26 00:07:41,497 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-26 00:07:41,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:07:41,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:07:41,931 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:07:41,934 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:07:43,515 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:07:43,850 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:07:43,850 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 00:07:43,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:07:43 BoogieIcfgContainer [2022-11-26 00:07:43,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:07:43,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:07:43,855 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:07:43,859 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:07:43,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:07:37" (1/3) ... [2022-11-26 00:07:43,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24023d05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:07:43, skipping insertion in model container [2022-11-26 00:07:43,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:07:41" (2/3) ... [2022-11-26 00:07:43,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24023d05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:07:43, skipping insertion in model container [2022-11-26 00:07:43,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:07:43" (3/3) ... [2022-11-26 00:07:43,864 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_be16_harness.i [2022-11-26 00:07:43,884 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:07:43,884 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:07:43,958 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:07:43,989 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;@4d58b6be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:07:43,989 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:07:43,994 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 52 states have (on average 1.1923076923076923) internal successors, (62), 53 states have internal predecessors, (62), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-11-26 00:07:44,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-26 00:07:44,005 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:07:44,005 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 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 00:07:44,006 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:07:44,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:07:44,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1503298337, now seen corresponding path program 1 times [2022-11-26 00:07:44,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:07:44,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862037363] [2022-11-26 00:07:44,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:07:44,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:07:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:08:04,430 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-26 00:08:04,431 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:08:04,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862037363] [2022-11-26 00:08:04,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862037363] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:08:04,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318904756] [2022-11-26 00:08:04,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:08:04,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:08:04,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faccef-2348-467a-8eb5-e544de846f6b/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:08:04,436 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faccef-2348-467a-8eb5-e544de846f6b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:08:04,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1faccef-2348-467a-8eb5-e544de846f6b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:08:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:08:05,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 2601 conjuncts, 150 conjunts are in the unsatisfiable core [2022-11-26 00:08:05,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:08:05,697 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 00:08:05,704 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 00:08:09,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:08:09,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-26 00:08:09,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:08:09,762 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:08:09,762 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 1 case distinctions, treesize of input 34 treesize of output 40 [2022-11-26 00:08:14,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:08:14,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-26 00:08:14,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:08:14,947 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:08:14,951 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 1 case distinctions, treesize of input 47 treesize of output 49 [2022-11-26 00:08:31,005 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:08:31,005 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 78 treesize of output 62 [2022-11-26 00:08:31,089 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:08:31,091 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 00:08:31,463 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 14 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-26 00:08:31,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:08:34,177 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 76449 disjunctions. This might take some time... [2022-11-26 00:15:47,224 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 76449 disjunctions.