./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_ad3959f4-6898-4d22-af54-97cc75634ec8/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3959f4-6898-4d22-af54-97cc75634ec8/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_ad3959f4-6898-4d22-af54-97cc75634ec8/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3959f4-6898-4d22-af54-97cc75634ec8/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3959f4-6898-4d22-af54-97cc75634ec8/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_ad3959f4-6898-4d22-af54-97cc75634ec8/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 f763a8239e73b0d57046c0b2b54f987dabb0e565cfc4b6e1d772f3ad566bd169 --- 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 14:13:44,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:13:44,401 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:13:44,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:13:44,415 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:13:44,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:13:44,416 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:13:44,418 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:13:44,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:13:44,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:13:44,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:13:44,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:13:44,421 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:13:44,422 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:13:44,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:13:44,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:13:44,424 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:13:44,425 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:13:44,426 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:13:44,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:13:44,428 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:13:44,429 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:13:44,430 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:13:44,431 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:13:44,433 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:13:44,434 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:13:44,434 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:13:44,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:13:44,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:13:44,435 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:13:44,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:13:44,436 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:13:44,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:13:44,437 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:13:44,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:13:44,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:13:44,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:13:44,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:13:44,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:13:44,439 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:13:44,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:13:44,441 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3959f4-6898-4d22-af54-97cc75634ec8/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 14:13:44,455 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:13:44,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:13:44,456 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:13:44,456 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:13:44,456 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:13:44,456 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:13:44,457 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:13:44,457 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:13:44,457 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:13:44,457 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:13:44,457 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:13:44,457 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:13:44,457 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:13:44,457 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:13:44,458 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:13:44,458 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:13:44,458 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:13:44,458 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:13:44,458 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:13:44,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:13:44,459 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:13:44,459 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:13:44,459 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:13:44,459 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:13:44,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:13:44,459 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:13:44,459 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:13:44,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:13:44,460 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:13:44,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:13:44,460 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:13:44,460 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:13:44,460 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:13:44,460 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:13:44,461 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:13:44,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:13:44,461 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:13:44,461 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:13:44,461 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_ad3959f4-6898-4d22-af54-97cc75634ec8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3959f4-6898-4d22-af54-97cc75634ec8/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f763a8239e73b0d57046c0b2b54f987dabb0e565cfc4b6e1d772f3ad566bd169 [2022-12-14 14:13:44,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:13:44,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:13:44,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:13:44,640 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:13:44,641 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:13:44,642 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3959f4-6898-4d22-af54-97cc75634ec8/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness_negated.i [2022-12-14 14:13:47,262 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:13:47,578 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:13:47,579 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3959f4-6898-4d22-af54-97cc75634ec8/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness_negated.i [2022-12-14 14:13:47,597 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3959f4-6898-4d22-af54-97cc75634ec8/bin/utaipan-gh47qXpMRh/data/281fb8ac2/b5b87f82366e4eee8ba5c7f9a5f11c90/FLAGbca9ce5c6 [2022-12-14 14:13:47,608 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3959f4-6898-4d22-af54-97cc75634ec8/bin/utaipan-gh47qXpMRh/data/281fb8ac2/b5b87f82366e4eee8ba5c7f9a5f11c90 [2022-12-14 14:13:47,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:13:47,611 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:13:47,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:13:47,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:13:47,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:13:47,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:13:47" (1/1) ... [2022-12-14 14:13:47,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31c16348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:13:47, skipping insertion in model container [2022-12-14 14:13:47,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:13:47" (1/1) ... [2022-12-14 14:13:47,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:13:47,688 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:13:47,869 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_ad3959f4-6898-4d22-af54-97cc75634ec8/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness_negated.i[4505,4518] [2022-12-14 14:13:47,876 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_ad3959f4-6898-4d22-af54-97cc75634ec8/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness_negated.i[4565,4578] [2022-12-14 14:13:48,533 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 14:13:48,537 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:13:48,538 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:13:48,538 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:13:48,538 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:13:48,539 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:13:48,541 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 14:13:48,549 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:13:48,550 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 14:13:48,550 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:13:48,551 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:13:48,552 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:13:48,610 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 14:13:48,610 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 14:13:48,611 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 14:13:48,614 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 14:13:48,616 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 14:13:48,616 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 14:13:48,856 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 14:13:48,857 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 14:13:48,858 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 14:13:48,858 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 14:13:48,859 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 14:13:48,860 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 14:13:48,861 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 14:13:48,861 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 14:13:48,862 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 14:13:48,862 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 14:13:48,863 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 14:13:48,989 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 14:13:49,006 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:13:49,007 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:13:49,014 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 14:13:49,021 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 14:13:49,024 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 14:13:49,031 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 14:13:49,039 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 14:13:49,044 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 14:13:49,044 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 14:13:49,045 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 14:13:49,054 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 14:13:49,060 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:13:49,061 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:13:49,064 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 14:13:49,070 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 14:13:49,101 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 14:13:49,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:13:49,133 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:13:49,142 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_ad3959f4-6898-4d22-af54-97cc75634ec8/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness_negated.i[4505,4518] [2022-12-14 14:13:49,143 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_ad3959f4-6898-4d22-af54-97cc75634ec8/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness_negated.i[4565,4578] [2022-12-14 14:13:49,163 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 14:13:49,165 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:13:49,165 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:13:49,165 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:13:49,166 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:13:49,166 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:13:49,167 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 14:13:49,170 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:13:49,171 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 14:13:49,171 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:13:49,171 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:13:49,172 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:13:49,176 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 14:13:49,176 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 14:13:49,177 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 14:13:49,178 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 14:13:49,179 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 14:13:49,179 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 14:13:49,193 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 14:13:49,194 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 14:13:49,194 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 14:13:49,195 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 14:13:49,195 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 14:13:49,196 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 14:13:49,196 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 14:13:49,196 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 14:13:49,196 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 14:13:49,197 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 14:13:49,197 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 14:13:49,210 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 14:13:49,218 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:13:49,219 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:13:49,221 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 14:13:49,225 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 14:13:49,226 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 14:13:49,245 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 14:13:49,251 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 14:13:49,255 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 14:13:49,256 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 14:13:49,257 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 14:13:49,264 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 14:13:49,270 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:13:49,270 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:13:49,274 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 14:13:49,280 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 14:13:49,293 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 14:13:49,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:13:49,419 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:13:49,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:13:49 WrapperNode [2022-12-14 14:13:49,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:13:49,420 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:13:49,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:13:49,420 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:13:49,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:13:49" (1/1) ... [2022-12-14 14:13:49,473 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:13:49" (1/1) ... [2022-12-14 14:13:49,516 INFO L138 Inliner]: procedures = 691, calls = 2645, calls flagged for inlining = 63, calls inlined = 10, statements flattened = 958 [2022-12-14 14:13:49,516 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:13:49,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:13:49,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:13:49,517 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:13:49,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:13:49" (1/1) ... [2022-12-14 14:13:49,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:13:49" (1/1) ... [2022-12-14 14:13:49,529 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:13:49" (1/1) ... [2022-12-14 14:13:49,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:13:49" (1/1) ... [2022-12-14 14:13:49,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:13:49" (1/1) ... [2022-12-14 14:13:49,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:13:49" (1/1) ... [2022-12-14 14:13:49,560 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:13:49" (1/1) ... [2022-12-14 14:13:49,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:13:49" (1/1) ... [2022-12-14 14:13:49,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:13:49,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:13:49,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:13:49,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:13:49,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:13:49" (1/1) ... [2022-12-14 14:13:49,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:13:49,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3959f4-6898-4d22-af54-97cc75634ec8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:13:49,595 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3959f4-6898-4d22-af54-97cc75634ec8/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:13:49,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3959f4-6898-4d22-af54-97cc75634ec8/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:13:49,628 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-12-14 14:13:49,628 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-12-14 14:13:49,628 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-12-14 14:13:49,628 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-12-14 14:13:49,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 14:13:49,629 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-14 14:13:49,629 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-14 14:13:49,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 14:13:49,629 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-12-14 14:13:49,629 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-12-14 14:13:49,629 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 14:13:49,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 14:13:49,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 14:13:49,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:13:49,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 14:13:49,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:13:49,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:13:49,629 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-14 14:13:49,629 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-14 14:13:49,629 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 14:13:49,630 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 14:13:49,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 14:13:49,630 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-12-14 14:13:49,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-12-14 14:13:49,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 14:13:49,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 14:13:49,630 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-12-14 14:13:49,630 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-12-14 14:13:49,630 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-12-14 14:13:49,630 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-12-14 14:13:49,630 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2022-12-14 14:13:49,630 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2022-12-14 14:13:49,630 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-12-14 14:13:49,630 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-12-14 14:13:49,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 14:13:49,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:13:49,824 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:13:49,826 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:13:50,738 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:13:50,967 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:13:50,967 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 14:13:50,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:13:50 BoogieIcfgContainer [2022-12-14 14:13:50,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:13:50,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:13:50,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:13:50,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:13:50,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:13:47" (1/3) ... [2022-12-14 14:13:50,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4861aed0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:13:50, skipping insertion in model container [2022-12-14 14:13:50,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:13:49" (2/3) ... [2022-12-14 14:13:50,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4861aed0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:13:50, skipping insertion in model container [2022-12-14 14:13:50,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:13:50" (3/3) ... [2022-12-14 14:13:50,976 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_with_lookup_harness_negated.i [2022-12-14 14:13:50,990 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:13:50,991 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 14:13:51,033 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:13:51,038 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;@228b58b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:13:51,038 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 14:13:51,041 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 61 states have (on average 1.180327868852459) internal successors, (72), 62 states have internal predecessors, (72), 44 states have call successors, (44), 12 states have call predecessors, (44), 12 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-12-14 14:13:51,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-14 14:13:51,048 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:13:51,049 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:13:51,049 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:13:51,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:13:51,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1053724324, now seen corresponding path program 1 times [2022-12-14 14:13:51,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:13:51,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10921027] [2022-12-14 14:13:51,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:51,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:13:52,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:55,644 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-12-14 14:13:55,644 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:13:55,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10921027] [2022-12-14 14:13:55,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10921027] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:13:55,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236893917] [2022-12-14 14:13:55,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:13:55,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:13:55,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3959f4-6898-4d22-af54-97cc75634ec8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:13:55,647 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3959f4-6898-4d22-af54-97cc75634ec8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:13:55,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3959f4-6898-4d22-af54-97cc75634ec8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 14:13:56,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:13:56,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 2629 conjuncts, 67 conjunts are in the unsatisfiable core [2022-12-14 14:13:56,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:13:56,377 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 14:13:56,385 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 14:13:57,714 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:57,716 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 14:13:57,717 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 14:13:57,722 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:13:57,724 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 14:13:57,724 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 14:13:58,063 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 14:13:58,087 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 14 proven. 38 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:13:58,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:13:59,127 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 14202 disjunctions. This might take some time... [2022-12-14 14:14:09,544 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 13413 disjunctions.