./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_bbbe399c-3e7d-4adf-8308-769d85a8a016/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbe399c-3e7d-4adf-8308-769d85a8a016/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbe399c-3e7d-4adf-8308-769d85a8a016/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbe399c-3e7d-4adf-8308-769d85a8a016/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbe399c-3e7d-4adf-8308-769d85a8a016/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbe399c-3e7d-4adf-8308-769d85a8a016/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 38dc13735933b57f41f0f181cb0b618794c9d1204cdfd22d4159590072f2bf51 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 06:05:15,372 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:05:15,373 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:05:15,392 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:05:15,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:05:15,394 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:05:15,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:05:15,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:05:15,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:05:15,399 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:05:15,400 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:05:15,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:05:15,402 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:05:15,403 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:05:15,404 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:05:15,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:05:15,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:05:15,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:05:15,408 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:05:15,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:05:15,411 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:05:15,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:05:15,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:05:15,414 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:05:15,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:05:15,418 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:05:15,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:05:15,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:05:15,420 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:05:15,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:05:15,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:05:15,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:05:15,423 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:05:15,423 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:05:15,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:05:15,425 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:05:15,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:05:15,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:05:15,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:05:15,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:05:15,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:05:15,428 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbe399c-3e7d-4adf-8308-769d85a8a016/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 06:05:15,444 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:05:15,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:05:15,444 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:05:15,444 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:05:15,445 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:05:15,445 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:05:15,445 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:05:15,445 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:05:15,445 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:05:15,445 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:05:15,445 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:05:15,445 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:05:15,445 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:05:15,446 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:05:15,446 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:05:15,446 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:05:15,446 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:05:15,446 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:05:15,447 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:05:15,447 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:05:15,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:05:15,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:05:15,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:05:15,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:05:15,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:05:15,447 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:05:15,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:05:15,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:05:15,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:05:15,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:05:15,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:05:15,448 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:05:15,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:05:15,448 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:05:15,449 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:05:15,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:05:15,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:05:15,449 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:05:15,449 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_bbbe399c-3e7d-4adf-8308-769d85a8a016/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbe399c-3e7d-4adf-8308-769d85a8a016/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38dc13735933b57f41f0f181cb0b618794c9d1204cdfd22d4159590072f2bf51 [2022-12-14 06:05:15,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:05:15,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:05:15,688 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:05:15,689 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:05:15,689 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:05:15,690 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbe399c-3e7d-4adf-8308-769d85a8a016/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness_negated.i [2022-12-14 06:05:18,267 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:05:18,625 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:05:18,626 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbe399c-3e7d-4adf-8308-769d85a8a016/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness_negated.i [2022-12-14 06:05:18,645 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbe399c-3e7d-4adf-8308-769d85a8a016/bin/utaipan-gh47qXpMRh/data/63577df8f/934a10d96451453780c5eab2bdeb3684/FLAGed67b8fad [2022-12-14 06:05:18,837 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbe399c-3e7d-4adf-8308-769d85a8a016/bin/utaipan-gh47qXpMRh/data/63577df8f/934a10d96451453780c5eab2bdeb3684 [2022-12-14 06:05:18,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:05:18,841 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:05:18,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:05:18,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:05:18,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:05:18,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:05:18" (1/1) ... [2022-12-14 06:05:18,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7382e2ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:05:18, skipping insertion in model container [2022-12-14 06:05:18,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:05:18" (1/1) ... [2022-12-14 06:05:18,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:05:18,925 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:05:19,135 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_bbbe399c-3e7d-4adf-8308-769d85a8a016/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness_negated.i[4493,4506] [2022-12-14 06:05:19,142 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_bbbe399c-3e7d-4adf-8308-769d85a8a016/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness_negated.i[4553,4566] [2022-12-14 06:05:19,830 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:05:19,837 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:05:19,837 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:05:19,838 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:05:19,839 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:05:19,840 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:05:19,843 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:05:19,855 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:05:19,856 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:05:19,856 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:05:19,858 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:05:19,858 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:05:19,919 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 06:05:19,919 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 06:05:19,920 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 06:05:19,923 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 06:05:19,925 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 06:05:19,925 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 06:05:20,157 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 06:05:20,158 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 06:05:20,159 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 06:05:20,160 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 06:05:20,161 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 06:05:20,162 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 06:05:20,163 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 06:05:20,163 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 06:05:20,164 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 06:05:20,164 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 06:05:20,164 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 06:05:20,285 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 06:05:20,307 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:05:20,315 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:05:20,317 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 06:05:20,325 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 06:05:20,333 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:05:20,337 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:05:20,338 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:05:20,339 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:05:20,348 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 06:05:20,354 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:05:20,354 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:05:20,358 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:05:20,365 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:05:20,401 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:05:20,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:05:20,442 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:05:20,451 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_bbbe399c-3e7d-4adf-8308-769d85a8a016/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness_negated.i[4493,4506] [2022-12-14 06:05:20,452 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_bbbe399c-3e7d-4adf-8308-769d85a8a016/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness_negated.i[4553,4566] [2022-12-14 06:05:20,473 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:05:20,474 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:05:20,475 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:05:20,475 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:05:20,475 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:05:20,476 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:05:20,476 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:05:20,480 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:05:20,480 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:05:20,480 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:05:20,481 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:05:20,481 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:05:20,486 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 06:05:20,486 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 06:05:20,486 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 06:05:20,488 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 06:05:20,489 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 06:05:20,490 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 06:05:20,503 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 06:05:20,504 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 06:05:20,504 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 06:05:20,505 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 06:05:20,505 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 06:05:20,506 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 06:05:20,506 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 06:05:20,507 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 06:05:20,507 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 06:05:20,507 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 06:05:20,508 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 06:05:20,521 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 06:05:20,532 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:05:20,536 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:05:20,537 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 06:05:20,542 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 06:05:20,546 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:05:20,549 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:05:20,550 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:05:20,575 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:05:20,583 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 06:05:20,589 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:05:20,590 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:05:20,595 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:05:20,600 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:05:20,617 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:05:20,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:05:20,781 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:05:20,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:05:20 WrapperNode [2022-12-14 06:05:20,781 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:05:20,782 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:05:20,783 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:05:20,783 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:05:20,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:05:20" (1/1) ... [2022-12-14 06:05:20,856 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:05:20" (1/1) ... [2022-12-14 06:05:20,914 INFO L138 Inliner]: procedures = 691, calls = 2642, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 858 [2022-12-14 06:05:20,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:05:20,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:05:20,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:05:20,915 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:05:20,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:05:20" (1/1) ... [2022-12-14 06:05:20,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:05:20" (1/1) ... [2022-12-14 06:05:20,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:05:20" (1/1) ... [2022-12-14 06:05:20,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:05:20" (1/1) ... [2022-12-14 06:05:20,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:05:20" (1/1) ... [2022-12-14 06:05:20,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:05:20" (1/1) ... [2022-12-14 06:05:20,975 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:05:20" (1/1) ... [2022-12-14 06:05:20,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:05:20" (1/1) ... [2022-12-14 06:05:20,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:05:20,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:05:20,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:05:20,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:05:20,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:05:20" (1/1) ... [2022-12-14 06:05:20,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:05:21,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbe399c-3e7d-4adf-8308-769d85a8a016/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:05:21,020 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbe399c-3e7d-4adf-8308-769d85a8a016/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:05:21,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbe399c-3e7d-4adf-8308-769d85a8a016/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:05:21,055 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-12-14 06:05:21,056 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-12-14 06:05:21,056 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-12-14 06:05:21,056 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-12-14 06:05:21,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 06:05:21,056 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-14 06:05:21,056 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-14 06:05:21,056 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_append [2022-12-14 06:05:21,056 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_append [2022-12-14 06:05:21,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 06:05:21,056 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-12-14 06:05:21,056 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-12-14 06:05:21,056 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 06:05:21,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 06:05:21,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 06:05:21,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:05:21,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 06:05:21,057 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-12-14 06:05:21,057 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-12-14 06:05:21,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:05:21,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:05:21,057 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-14 06:05:21,057 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-14 06:05:21,057 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 06:05:21,057 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 06:05:21,057 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-12-14 06:05:21,057 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-12-14 06:05:21,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 06:05:21,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 06:05:21,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 06:05:21,058 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-12-14 06:05:21,058 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-12-14 06:05:21,058 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2022-12-14 06:05:21,058 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2022-12-14 06:05:21,058 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-12-14 06:05:21,058 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-12-14 06:05:21,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 06:05:21,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:05:21,286 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:05:21,289 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:05:22,242 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:05:22,493 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:05:22,493 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 06:05:22,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:05:22 BoogieIcfgContainer [2022-12-14 06:05:22,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:05:22,498 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:05:22,498 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:05:22,501 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:05:22,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:05:18" (1/3) ... [2022-12-14 06:05:22,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e49aeca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:05:22, skipping insertion in model container [2022-12-14 06:05:22,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:05:20" (2/3) ... [2022-12-14 06:05:22,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e49aeca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:05:22, skipping insertion in model container [2022-12-14 06:05:22,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:05:22" (3/3) ... [2022-12-14 06:05:22,503 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_harness_negated.i [2022-12-14 06:05:22,516 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:05:22,516 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 06:05:22,552 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:05:22,557 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;@5bebee8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:05:22,557 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 06:05:22,560 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 61 states have (on average 1.1475409836065573) internal successors, (70), 62 states have internal predecessors, (70), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-12-14 06:05:22,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-12-14 06:05:22,567 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:05:22,567 INFO L195 NwaCegarLoop]: trace histogram [7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:05:22,568 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:05:22,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:05:22,571 INFO L85 PathProgramCache]: Analyzing trace with hash 408760015, now seen corresponding path program 1 times [2022-12-14 06:05:22,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:05:22,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374111911] [2022-12-14 06:05:22,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:05:22,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:05:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:05:27,969 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-12-14 06:05:27,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:05:27,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374111911] [2022-12-14 06:05:27,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374111911] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:05:27,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748006425] [2022-12-14 06:05:27,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:05:27,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:05:27,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbe399c-3e7d-4adf-8308-769d85a8a016/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:05:27,972 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbe399c-3e7d-4adf-8308-769d85a8a016/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:05:27,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbe399c-3e7d-4adf-8308-769d85a8a016/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 06:05:28,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:05:28,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 2603 conjuncts, 61 conjunts are in the unsatisfiable core [2022-12-14 06:05:28,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:05:28,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 06:05:28,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 06:05:29,732 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:05:29,735 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:05:29,735 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 7 [2022-12-14 06:05:29,741 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 06:05:29,743 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 06:05:29,744 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 7 [2022-12-14 06:05:30,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-12-14 06:05:30,533 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 32 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 06:05:30,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:05:31,420 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 13430 disjunctions. This might take some time... [2022-12-14 06:05:41,847 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 13413 disjunctions.