./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_eq_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_61d5ddc7-722f-43cf-a029-cdb9d270d10a/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d5ddc7-722f-43cf-a029-cdb9d270d10a/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_61d5ddc7-722f-43cf-a029-cdb9d270d10a/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d5ddc7-722f-43cf-a029-cdb9d270d10a/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_eq_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d5ddc7-722f-43cf-a029-cdb9d270d10a/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_61d5ddc7-722f-43cf-a029-cdb9d270d10a/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 0cce5eb6e6a94a2ea26fd5e0b3266efc604dbf6d671cb1a977a238b7eb4f442f --- 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 14:59:33,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:59:33,391 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:59:33,415 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:59:33,415 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:59:33,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:59:33,419 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:59:33,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:59:33,424 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:59:33,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:59:33,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:59:33,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:59:33,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:59:33,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:59:33,432 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:59:33,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:59:33,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:59:33,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:59:33,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:59:33,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:59:33,444 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:59:33,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:59:33,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:59:33,446 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:59:33,448 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:59:33,448 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:59:33,449 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:59:33,449 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:59:33,449 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:59:33,450 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:59:33,450 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:59:33,451 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:59:33,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:59:33,452 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:59:33,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:59:33,453 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:59:33,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:59:33,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:59:33,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:59:33,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:59:33,454 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:59:33,455 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d5ddc7-722f-43cf-a029-cdb9d270d10a/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 14:59:33,480 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:59:33,480 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:59:33,480 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:59:33,481 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:59:33,481 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:59:33,481 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:59:33,482 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:59:33,482 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:59:33,482 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:59:33,482 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:59:33,482 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:59:33,483 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:59:33,483 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:59:33,483 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:59:33,483 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:59:33,483 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:59:33,484 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:59:33,484 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:59:33,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:59:33,485 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:59:33,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:59:33,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:59:33,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:59:33,485 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:59:33,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:59:33,486 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:59:33,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:59:33,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:59:33,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:59:33,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:59:33,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:59:33,487 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:59:33,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:59:33,487 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:59:33,488 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:59:33,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:59:33,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:59:33,488 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:59:33,488 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_61d5ddc7-722f-43cf-a029-cdb9d270d10a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d5ddc7-722f-43cf-a029-cdb9d270d10a/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cce5eb6e6a94a2ea26fd5e0b3266efc604dbf6d671cb1a977a238b7eb4f442f [2022-12-14 14:59:33,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:59:33,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:59:33,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:59:33,695 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:59:33,695 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:59:33,696 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d5ddc7-722f-43cf-a029-cdb9d270d10a/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/aws-c-common/aws_string_eq_harness_negated.i [2022-12-14 14:59:36,413 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:59:36,714 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:59:36,715 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d5ddc7-722f-43cf-a029-cdb9d270d10a/sv-benchmarks/c/aws-c-common/aws_string_eq_harness_negated.i [2022-12-14 14:59:36,733 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d5ddc7-722f-43cf-a029-cdb9d270d10a/bin/utaipan-gh47qXpMRh/data/1e5e02eae/ed05378ff1ac4dedbd6d03ea5d1ea6dc/FLAGe7697cf88 [2022-12-14 14:59:36,744 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d5ddc7-722f-43cf-a029-cdb9d270d10a/bin/utaipan-gh47qXpMRh/data/1e5e02eae/ed05378ff1ac4dedbd6d03ea5d1ea6dc [2022-12-14 14:59:36,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:59:36,748 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:59:36,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:59:36,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:59:36,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:59:36,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:59:36" (1/1) ... [2022-12-14 14:59:36,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47e8d133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:59:36, skipping insertion in model container [2022-12-14 14:59:36,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:59:36" (1/1) ... [2022-12-14 14:59:36,760 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:59:36,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:59:37,004 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_61d5ddc7-722f-43cf-a029-cdb9d270d10a/sv-benchmarks/c/aws-c-common/aws_string_eq_harness_negated.i[4487,4500] [2022-12-14 14:59:37,010 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_61d5ddc7-722f-43cf-a029-cdb9d270d10a/sv-benchmarks/c/aws-c-common/aws_string_eq_harness_negated.i[4547,4560] [2022-12-14 14:59:37,755 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:59:37,756 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:59:37,756 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:59:37,757 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:59:37,758 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:59:37,769 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:59:37,770 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:59:37,771 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:59:37,772 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:59:37,828 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 14:59:37,829 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 14:59:37,829 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 14:59:37,833 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 14:59:37,834 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 14:59:37,835 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 14:59:38,060 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 14:59:38,061 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 14:59:38,061 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 14:59:38,062 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 14:59:38,063 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 14:59:38,064 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 14:59:38,064 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 14:59:38,065 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 14:59:38,065 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 14:59:38,066 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 14:59:38,066 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 14:59:38,183 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 14:59:38,199 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 14:59:38,222 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 14:59:38,230 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 14:59:38,250 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 14:59:38,257 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:59:38,257 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:59:38,277 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:59:38,317 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:59:38,329 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_61d5ddc7-722f-43cf-a029-cdb9d270d10a/sv-benchmarks/c/aws-c-common/aws_string_eq_harness_negated.i[4487,4500] [2022-12-14 14:59:38,330 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_61d5ddc7-722f-43cf-a029-cdb9d270d10a/sv-benchmarks/c/aws-c-common/aws_string_eq_harness_negated.i[4547,4560] [2022-12-14 14:59:38,360 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:59:38,361 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:59:38,361 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:59:38,361 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:59:38,362 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:59:38,368 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:59:38,368 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:59:38,369 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:59:38,369 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:59:38,376 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 14:59:38,376 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 14:59:38,377 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 14:59:38,380 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 14:59:38,381 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 14:59:38,381 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 14:59:38,400 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 14:59:38,400 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 14:59:38,401 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 14:59:38,401 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 14:59:38,402 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 14:59:38,403 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 14:59:38,403 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 14:59:38,403 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 14:59:38,404 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 14:59:38,404 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 14:59:38,405 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 14:59:38,419 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 14:59:38,428 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 14:59:38,440 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 14:59:38,444 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 14:59:38,455 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 14:59:38,460 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:59:38,460 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:59:38,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:59:38,687 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:59:38,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:59:38 WrapperNode [2022-12-14 14:59:38,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:59:38,688 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:59:38,688 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:59:38,689 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:59:38,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:59:38" (1/1) ... [2022-12-14 14:59:38,763 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:59:38" (1/1) ... [2022-12-14 14:59:38,809 INFO L138 Inliner]: procedures = 681, calls = 2272, calls flagged for inlining = 58, calls inlined = 6, statements flattened = 384 [2022-12-14 14:59:38,809 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:59:38,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:59:38,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:59:38,810 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:59:38,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:59:38" (1/1) ... [2022-12-14 14:59:38,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:59:38" (1/1) ... [2022-12-14 14:59:38,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:59:38" (1/1) ... [2022-12-14 14:59:38,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:59:38" (1/1) ... [2022-12-14 14:59:38,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:59:38" (1/1) ... [2022-12-14 14:59:38,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:59:38" (1/1) ... [2022-12-14 14:59:38,848 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:59:38" (1/1) ... [2022-12-14 14:59:38,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:59:38" (1/1) ... [2022-12-14 14:59:38,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:59:38,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:59:38,859 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:59:38,859 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:59:38,860 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:59:38" (1/1) ... [2022-12-14 14:59:38,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:59:38,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d5ddc7-722f-43cf-a029-cdb9d270d10a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:59:38,884 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d5ddc7-722f-43cf-a029-cdb9d270d10a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:59:38,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d5ddc7-722f-43cf-a029-cdb9d270d10a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:59:38,920 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2022-12-14 14:59:38,921 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2022-12-14 14:59:38,921 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2022-12-14 14:59:38,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2022-12-14 14:59:38,921 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 14:59:38,921 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-14 14:59:38,921 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-14 14:59:38,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 14:59:38,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 14:59:38,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 14:59:38,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 14:59:38,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:59:38,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 14:59:38,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:59:38,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:59:38,922 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-14 14:59:38,922 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-14 14:59:38,922 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 14:59:38,922 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 14:59:38,922 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2022-12-14 14:59:38,923 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2022-12-14 14:59:38,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 14:59:38,923 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-12-14 14:59:38,923 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-12-14 14:59:38,923 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-12-14 14:59:38,923 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-12-14 14:59:38,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 14:59:38,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:59:39,103 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:59:39,105 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:59:39,439 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:59:39,522 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:59:39,522 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 14:59:39,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:59:39 BoogieIcfgContainer [2022-12-14 14:59:39,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:59:39,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:59:39,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:59:39,531 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:59:39,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:59:36" (1/3) ... [2022-12-14 14:59:39,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7687374e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:59:39, skipping insertion in model container [2022-12-14 14:59:39,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:59:38" (2/3) ... [2022-12-14 14:59:39,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7687374e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:59:39, skipping insertion in model container [2022-12-14 14:59:39,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:59:39" (3/3) ... [2022-12-14 14:59:39,533 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_eq_harness_negated.i [2022-12-14 14:59:39,546 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:59:39,546 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 14:59:39,580 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:59:39,584 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;@53a93ab4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:59:39,585 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 14:59:39,588 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 47 states have (on average 1.2340425531914894) internal successors, (58), 48 states have internal predecessors, (58), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-12-14 14:59:39,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 14:59:39,594 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:59:39,595 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 14:59:39,595 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:59:39,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:59:39,598 INFO L85 PathProgramCache]: Analyzing trace with hash 794474321, now seen corresponding path program 1 times [2022-12-14 14:59:39,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:59:39,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724051786] [2022-12-14 14:59:39,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:59:39,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:59:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:59:40,093 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 14:59:40,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:59:40,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724051786] [2022-12-14 14:59:40,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724051786] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:59:40,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:59:40,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:59:40,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612889369] [2022-12-14 14:59:40,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:59:40,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:59:40,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:59:40,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:59:40,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:59:40,123 INFO L87 Difference]: Start difference. First operand has 84 states, 47 states have (on average 1.2340425531914894) internal successors, (58), 48 states have internal predecessors, (58), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 14:59:40,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:59:40,221 INFO L93 Difference]: Finished difference Result 139 states and 188 transitions. [2022-12-14 14:59:40,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:59:40,223 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 28 [2022-12-14 14:59:40,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:59:40,229 INFO L225 Difference]: With dead ends: 139 [2022-12-14 14:59:40,229 INFO L226 Difference]: Without dead ends: 81 [2022-12-14 14:59:40,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:59:40,234 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 12 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:59:40,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 294 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:59:40,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-12-14 14:59:40,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2022-12-14 14:59:40,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 45 states have (on average 1.1777777777777778) internal successors, (53), 46 states have internal predecessors, (53), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2022-12-14 14:59:40,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 104 transitions. [2022-12-14 14:59:40,268 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 104 transitions. Word has length 28 [2022-12-14 14:59:40,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:59:40,269 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 104 transitions. [2022-12-14 14:59:40,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 14:59:40,270 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 104 transitions. [2022-12-14 14:59:40,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-12-14 14:59:40,271 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:59:40,271 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 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 14:59:40,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:59:40,272 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:59:40,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:59:40,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1665732573, now seen corresponding path program 1 times [2022-12-14 14:59:40,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:59:40,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322322200] [2022-12-14 14:59:40,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:59:40,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:59:40,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:59:40,644 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 14:59:40,644 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:59:40,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322322200] [2022-12-14 14:59:40,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322322200] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:59:40,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:59:40,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 14:59:40,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739754974] [2022-12-14 14:59:40,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:59:40,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 14:59:40,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:59:40,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 14:59:40,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-14 14:59:40,648 INFO L87 Difference]: Start difference. First operand 81 states and 104 transitions. Second operand has 10 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2022-12-14 14:59:40,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:59:40,843 INFO L93 Difference]: Finished difference Result 127 states and 163 transitions. [2022-12-14 14:59:40,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 14:59:40,844 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) Word has length 53 [2022-12-14 14:59:40,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:59:40,846 INFO L225 Difference]: With dead ends: 127 [2022-12-14 14:59:40,846 INFO L226 Difference]: Without dead ends: 81 [2022-12-14 14:59:40,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-12-14 14:59:40,848 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 30 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:59:40,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 714 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:59:40,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-12-14 14:59:40,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2022-12-14 14:59:40,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 46 states have internal predecessors, (52), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2022-12-14 14:59:40,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 103 transitions. [2022-12-14 14:59:40,861 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 103 transitions. Word has length 53 [2022-12-14 14:59:40,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:59:40,862 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 103 transitions. [2022-12-14 14:59:40,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2022-12-14 14:59:40,862 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 103 transitions. [2022-12-14 14:59:40,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-14 14:59:40,864 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:59:40,864 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 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 14:59:40,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:59:40,864 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:59:40,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:59:40,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1264304402, now seen corresponding path program 1 times [2022-12-14 14:59:40,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:59:40,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136291569] [2022-12-14 14:59:40,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:59:40,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:59:40,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:59:41,427 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 14:59:41,428 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:59:41,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136291569] [2022-12-14 14:59:41,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136291569] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:59:41,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:59:41,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-14 14:59:41,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507220955] [2022-12-14 14:59:41,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:59:41,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 14:59:41,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:59:41,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 14:59:41,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-12-14 14:59:41,430 INFO L87 Difference]: Start difference. First operand 81 states and 103 transitions. Second operand has 13 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 11 states have internal predecessors, (29), 5 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 7 states have call predecessors, (11), 5 states have call successors, (11) [2022-12-14 14:59:41,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:59:41,764 INFO L93 Difference]: Finished difference Result 155 states and 204 transitions. [2022-12-14 14:59:41,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 14:59:41,765 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 11 states have internal predecessors, (29), 5 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 7 states have call predecessors, (11), 5 states have call successors, (11) Word has length 57 [2022-12-14 14:59:41,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:59:41,767 INFO L225 Difference]: With dead ends: 155 [2022-12-14 14:59:41,767 INFO L226 Difference]: Without dead ends: 114 [2022-12-14 14:59:41,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-12-14 14:59:41,768 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 71 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:59:41,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 921 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 14:59:41,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-12-14 14:59:41,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 88. [2022-12-14 14:59:41,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 50 states have (on average 1.14) internal successors, (57), 51 states have internal predecessors, (57), 28 states have call successors, (28), 9 states have call predecessors, (28), 9 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-12-14 14:59:41,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 112 transitions. [2022-12-14 14:59:41,780 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 112 transitions. Word has length 57 [2022-12-14 14:59:41,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:59:41,781 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 112 transitions. [2022-12-14 14:59:41,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 11 states have internal predecessors, (29), 5 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 7 states have call predecessors, (11), 5 states have call successors, (11) [2022-12-14 14:59:41,781 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 112 transitions. [2022-12-14 14:59:41,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-14 14:59:41,782 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:59:41,782 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:59:41,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 14:59:41,782 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:59:41,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:59:41,783 INFO L85 PathProgramCache]: Analyzing trace with hash -506411013, now seen corresponding path program 1 times [2022-12-14 14:59:41,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:59:41,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775840585] [2022-12-14 14:59:41,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:59:41,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:59:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:59:42,834 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-14 14:59:42,834 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:59:42,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775840585] [2022-12-14 14:59:42,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775840585] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:59:42,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382191741] [2022-12-14 14:59:42,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:59:42,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:59:42,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d5ddc7-722f-43cf-a029-cdb9d270d10a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:59:42,836 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d5ddc7-722f-43cf-a029-cdb9d270d10a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:59:42,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d5ddc7-722f-43cf-a029-cdb9d270d10a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 14:59:43,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:59:43,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 111 conjunts are in the unsatisfiable core [2022-12-14 14:59:43,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:59:43,677 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 81 treesize of output 76 [2022-12-14 14:59:43,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:59:43,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 144 [2022-12-14 14:59:43,714 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 14:59:44,095 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 14:59:44,095 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:59:44,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382191741] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:59:44,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 14:59:44,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [10] total 18 [2022-12-14 14:59:44,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879555251] [2022-12-14 14:59:44,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:59:44,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 14:59:44,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:59:44,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 14:59:44,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2022-12-14 14:59:44,098 INFO L87 Difference]: Start difference. First operand 88 states and 112 transitions. Second operand has 12 states, 7 states have (on average 4.571428571428571) internal successors, (32), 9 states have internal predecessors, (32), 6 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (12), 7 states have call predecessors, (12), 6 states have call successors, (12) [2022-12-14 14:59:44,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:59:44,620 INFO L93 Difference]: Finished difference Result 113 states and 138 transitions. [2022-12-14 14:59:44,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 14:59:44,621 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 7 states have (on average 4.571428571428571) internal successors, (32), 9 states have internal predecessors, (32), 6 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (12), 7 states have call predecessors, (12), 6 states have call successors, (12) Word has length 61 [2022-12-14 14:59:44,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:59:44,621 INFO L225 Difference]: With dead ends: 113 [2022-12-14 14:59:44,621 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 14:59:44,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 53 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2022-12-14 14:59:44,623 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 16 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:59:44,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 109 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 14:59:44,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 14:59:44,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 14:59:44,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:59:44,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 14:59:44,624 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2022-12-14 14:59:44,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:59:44,625 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 14:59:44,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 7 states have (on average 4.571428571428571) internal successors, (32), 9 states have internal predecessors, (32), 6 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (12), 7 states have call predecessors, (12), 6 states have call successors, (12) [2022-12-14 14:59:44,625 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 14:59:44,625 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 14:59:44,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 14:59:44,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d5ddc7-722f-43cf-a029-cdb9d270d10a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 14:59:44,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d5ddc7-722f-43cf-a029-cdb9d270d10a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:59:44,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 14:59:45,052 INFO L899 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthEXIT(lines 6801 6805) no Hoare annotation was computed. [2022-12-14 14:59:45,053 INFO L899 garLoopResultBuilder]: For program point L6811-1(lines 6811 6812) no Hoare annotation was computed. [2022-12-14 14:59:45,053 INFO L895 garLoopResultBuilder]: At program point L6811(line 6811) the Hoare annotation is: (let ((.cse0 (mod |ensure_string_is_allocated_bounded_length_#in~max_size#1| 18446744073709551616))) (and (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.offset| 0) (< (mod |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616) .cse0) (< (mod |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| 18446744073709551616) .cse0) (<= (+ 18410715276689353099 |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|) (* 18446744073709551616 (div (+ 18446744073708317066 |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|) 18446744073709551616))))) [2022-12-14 14:59:45,053 INFO L895 garLoopResultBuilder]: At program point L6811-5(lines 6811 6812) the Hoare annotation is: (let ((.cse0 (mod |ensure_string_is_allocated_bounded_length_#in~max_size#1| 18446744073709551616))) (and (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.offset| 0) (< (mod |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616) .cse0) (< (mod |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| 18446744073709551616) .cse0) (<= (+ 18410715276689353099 |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|) (* 18446744073709551616 (div (+ 18446744073708317066 |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|) 18446744073709551616))))) [2022-12-14 14:59:45,053 INFO L899 garLoopResultBuilder]: For program point L6808-1(line 6808) no Hoare annotation was computed. [2022-12-14 14:59:45,053 INFO L895 garLoopResultBuilder]: At program point L6808(line 6808) the Hoare annotation is: (let ((.cse0 (mod |ensure_string_is_allocated_bounded_length_#in~max_size#1| 18446744073709551616))) (and (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (< (mod |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616) .cse0) (< (mod |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| 18446744073709551616) .cse0))) [2022-12-14 14:59:45,053 INFO L899 garLoopResultBuilder]: For program point L6811-3(line 6811) no Hoare annotation was computed. [2022-12-14 14:59:45,054 INFO L895 garLoopResultBuilder]: At program point L6811-2(line 6811) the Hoare annotation is: (let ((.cse0 (mod |ensure_string_is_allocated_bounded_length_#in~max_size#1| 18446744073709551616))) (and (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.offset| 0) (< (mod |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616) .cse0) (< (mod |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| 18446744073709551616) .cse0) (<= (+ 18410715276689353099 |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|) (* 18446744073709551616 (div (+ 18446744073708317066 |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|) 18446744073709551616))))) [2022-12-14 14:59:45,054 INFO L895 garLoopResultBuilder]: At program point L6802(line 6802) the Hoare annotation is: (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) [2022-12-14 14:59:45,054 INFO L899 garLoopResultBuilder]: For program point L6803-1(line 6803) no Hoare annotation was computed. [2022-12-14 14:59:45,054 INFO L895 garLoopResultBuilder]: At program point L6803(line 6803) the Hoare annotation is: (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) [2022-12-14 14:59:45,054 INFO L899 garLoopResultBuilder]: For program point L6802-1(line 6802) no Hoare annotation was computed. [2022-12-14 14:59:45,054 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6801 6805) the Hoare annotation is: true [2022-12-14 14:59:45,054 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6883 6888) the Hoare annotation is: true [2022-12-14 14:59:45,054 INFO L899 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6883 6888) no Hoare annotation was computed. [2022-12-14 14:59:45,054 INFO L899 garLoopResultBuilder]: For program point L6884-1(lines 6884 6886) no Hoare annotation was computed. [2022-12-14 14:59:45,055 INFO L895 garLoopResultBuilder]: At program point L6884(lines 6884 6886) the Hoare annotation is: (and (<= |bounded_malloc_#in~size| bounded_malloc_~size) (<= bounded_malloc_~size |bounded_malloc_#in~size|)) [2022-12-14 14:59:45,055 INFO L899 garLoopResultBuilder]: For program point aws_array_eqEXIT(lines 8019 8039) no Hoare annotation was computed. [2022-12-14 14:59:45,055 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 8019 8039) the Hoare annotation is: true [2022-12-14 14:59:45,055 INFO L899 garLoopResultBuilder]: For program point L8023(lines 8020 8039) no Hoare annotation was computed. [2022-12-14 14:59:45,055 INFO L902 garLoopResultBuilder]: At program point L8021-1(line 8021) the Hoare annotation is: true [2022-12-14 14:59:45,055 INFO L902 garLoopResultBuilder]: At program point L8021(line 8021) the Hoare annotation is: true [2022-12-14 14:59:45,055 INFO L899 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2022-12-14 14:59:45,055 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 261) the Hoare annotation is: true [2022-12-14 14:59:45,055 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 210 212) the Hoare annotation is: true [2022-12-14 14:59:45,056 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2022-12-14 14:59:45,056 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6890 6892) the Hoare annotation is: true [2022-12-14 14:59:45,056 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6890 6892) no Hoare annotation was computed. [2022-12-14 14:59:45,056 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6253 6258) the Hoare annotation is: true [2022-12-14 14:59:45,056 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6253 6258) no Hoare annotation was computed. [2022-12-14 14:59:45,056 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2022-12-14 14:59:45,056 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 266) the Hoare annotation is: true [2022-12-14 14:59:45,056 INFO L899 garLoopResultBuilder]: For program point L7100(lines 7100 7113) no Hoare annotation was computed. [2022-12-14 14:59:45,056 INFO L899 garLoopResultBuilder]: For program point L7414(line 7414) no Hoare annotation was computed. [2022-12-14 14:59:45,056 INFO L895 garLoopResultBuilder]: At program point L8917(line 8917) the Hoare annotation is: false [2022-12-14 14:59:45,056 INFO L899 garLoopResultBuilder]: For program point L8917-1(line 8917) no Hoare annotation was computed. [2022-12-14 14:59:45,057 INFO L895 garLoopResultBuilder]: At program point L7414-4(line 7414) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_eq_harness_~str_a~1#1.offset| 0)) [2022-12-14 14:59:45,057 INFO L899 garLoopResultBuilder]: For program point L7414-3(line 7414) no Hoare annotation was computed. [2022-12-14 14:59:45,057 INFO L895 garLoopResultBuilder]: At program point L7414-2(line 7414) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_eq_harness_~str_a~1#1.offset| 0)) [2022-12-14 14:59:45,057 INFO L899 garLoopResultBuilder]: For program point L7414-5(line 7414) no Hoare annotation was computed. [2022-12-14 14:59:45,057 INFO L899 garLoopResultBuilder]: For program point L7101-1(lines 7100 7113) no Hoare annotation was computed. [2022-12-14 14:59:45,057 INFO L895 garLoopResultBuilder]: At program point L7101(line 7101) the Hoare annotation is: false [2022-12-14 14:59:45,057 INFO L899 garLoopResultBuilder]: For program point L7415(line 7415) no Hoare annotation was computed. [2022-12-14 14:59:45,057 INFO L899 garLoopResultBuilder]: For program point L7415-5(line 7415) no Hoare annotation was computed. [2022-12-14 14:59:45,057 INFO L895 garLoopResultBuilder]: At program point L7415-4(line 7415) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_eq_harness_~str_a~1#1.offset| 0)) [2022-12-14 14:59:45,057 INFO L899 garLoopResultBuilder]: For program point L7415-3(line 7415) no Hoare annotation was computed. [2022-12-14 14:59:45,058 INFO L895 garLoopResultBuilder]: At program point L7415-2(line 7415) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_eq_harness_~str_a~1#1.offset| 0)) [2022-12-14 14:59:45,058 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 14:59:45,058 INFO L899 garLoopResultBuilder]: For program point L8919-2(line 8919) no Hoare annotation was computed. [2022-12-14 14:59:45,058 INFO L895 garLoopResultBuilder]: At program point L8915(line 8915) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_eq_harness_~str_a~1#1.offset| 0)) [2022-12-14 14:59:45,058 INFO L899 garLoopResultBuilder]: For program point L7416(lines 7416 7420) no Hoare annotation was computed. [2022-12-14 14:59:45,058 INFO L899 garLoopResultBuilder]: For program point L8915-1(line 8915) no Hoare annotation was computed. [2022-12-14 14:59:45,058 INFO L895 garLoopResultBuilder]: At program point L8919(line 8919) the Hoare annotation is: false [2022-12-14 14:59:45,058 INFO L895 garLoopResultBuilder]: At program point L8919-1(line 8919) the Hoare annotation is: false [2022-12-14 14:59:45,058 INFO L895 garLoopResultBuilder]: At program point L8915-3(line 8915) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_eq_harness_~str_a~1#1.offset| 0)) [2022-12-14 14:59:45,059 INFO L899 garLoopResultBuilder]: For program point L8915-4(line 8915) no Hoare annotation was computed. [2022-12-14 14:59:45,059 INFO L902 garLoopResultBuilder]: At program point L8911(lines 8911 8922) the Hoare annotation is: true [2022-12-14 14:59:45,059 INFO L899 garLoopResultBuilder]: For program point L8915-5(line 8915) no Hoare annotation was computed. [2022-12-14 14:59:45,059 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 14:59:45,059 INFO L899 garLoopResultBuilder]: For program point L7111-1(line 7111) no Hoare annotation was computed. [2022-12-14 14:59:45,059 INFO L895 garLoopResultBuilder]: At program point L7111(line 7111) the Hoare annotation is: false [2022-12-14 14:59:45,059 INFO L899 garLoopResultBuilder]: For program point L7107-1(line 7107) no Hoare annotation was computed. [2022-12-14 14:59:45,059 INFO L895 garLoopResultBuilder]: At program point aws_string_eq_returnLabel#1(lines 7412 7431) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_eq_harness_~str_a~1#1.offset| 0)) [2022-12-14 14:59:45,059 INFO L895 garLoopResultBuilder]: At program point L7107(line 7107) the Hoare annotation is: false [2022-12-14 14:59:45,060 INFO L899 garLoopResultBuilder]: For program point L7421(lines 7421 7429) no Hoare annotation was computed. [2022-12-14 14:59:45,060 INFO L899 garLoopResultBuilder]: For program point L8916(lines 8916 8921) no Hoare annotation was computed. [2022-12-14 14:59:45,060 INFO L895 garLoopResultBuilder]: At program point L8920(line 8920) the Hoare annotation is: false [2022-12-14 14:59:45,060 INFO L895 garLoopResultBuilder]: At program point L8920-1(line 8920) the Hoare annotation is: false [2022-12-14 14:59:45,060 INFO L899 garLoopResultBuilder]: For program point L8920-2(line 8920) no Hoare annotation was computed. [2022-12-14 14:59:45,060 INFO L899 garLoopResultBuilder]: For program point L8912-3(line 8912) no Hoare annotation was computed. [2022-12-14 14:59:45,060 INFO L899 garLoopResultBuilder]: For program point L8912-5(lines 8912 8913) no Hoare annotation was computed. [2022-12-14 14:59:45,060 INFO L902 garLoopResultBuilder]: At program point L8912(line 8912) the Hoare annotation is: true [2022-12-14 14:59:45,060 INFO L899 garLoopResultBuilder]: For program point L8912-1(lines 8912 8913) no Hoare annotation was computed. [2022-12-14 14:59:45,060 INFO L902 garLoopResultBuilder]: At program point L8912-2(line 8912) the Hoare annotation is: true [2022-12-14 14:59:45,061 INFO L895 garLoopResultBuilder]: At program point L7430(line 7430) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_eq_harness_~str_a~1#1.offset| 0)) [2022-12-14 14:59:45,061 INFO L899 garLoopResultBuilder]: For program point L7108-1(lines 7108 7110) no Hoare annotation was computed. [2022-12-14 14:59:45,061 INFO L895 garLoopResultBuilder]: At program point L7108(lines 7108 7110) the Hoare annotation is: false [2022-12-14 14:59:45,061 INFO L899 garLoopResultBuilder]: For program point L7430-1(line 7430) no Hoare annotation was computed. [2022-12-14 14:59:45,061 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2022-12-14 14:59:45,061 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2022-12-14 14:59:45,061 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2022-12-14 14:59:45,061 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2022-12-14 14:59:45,061 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 222 224) the Hoare annotation is: true [2022-12-14 14:59:45,061 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2022-12-14 14:59:45,065 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-14 14:59:45,067 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:59:45,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:59:45 BoogieIcfgContainer [2022-12-14 14:59:45,079 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:59:45,079 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:59:45,079 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:59:45,079 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:59:45,080 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:59:39" (3/4) ... [2022-12-14 14:59:45,083 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 14:59:45,089 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_string_is_allocated_bounded_length [2022-12-14 14:59:45,089 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2022-12-14 14:59:45,089 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_eq [2022-12-14 14:59:45,089 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2022-12-14 14:59:45,089 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2022-12-14 14:59:45,090 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-12-14 14:59:45,090 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-12-14 14:59:45,090 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2022-12-14 14:59:45,090 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2022-12-14 14:59:45,097 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2022-12-14 14:59:45,098 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-12-14 14:59:45,098 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 14:59:45,099 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 14:59:45,126 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\old(max_size) == max_size && !(str == 0)) && str == 0) && len % 18446744073709551616 < \old(max_size) % 18446744073709551616) && len % 18446744073709551616 < \old(max_size) % 18446744073709551616) && 18410715276689353099 + len <= 18446744073709551616 * ((18446744073708317066 + len) / 18446744073709551616) [2022-12-14 14:59:45,292 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d5ddc7-722f-43cf-a029-cdb9d270d10a/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 14:59:45,292 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:59:45,292 INFO L158 Benchmark]: Toolchain (without parser) took 8544.06ms. Allocated memory was 130.0MB in the beginning and 226.5MB in the end (delta: 96.5MB). Free memory was 88.4MB in the beginning and 89.0MB in the end (delta: -589.9kB). Peak memory consumption was 95.8MB. Max. memory is 16.1GB. [2022-12-14 14:59:45,292 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 130.0MB. Free memory is still 72.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:59:45,293 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1938.37ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 87.9MB in the beginning and 94.8MB in the end (delta: -6.9MB). Peak memory consumption was 93.4MB. Max. memory is 16.1GB. [2022-12-14 14:59:45,293 INFO L158 Benchmark]: Boogie Procedure Inliner took 121.07ms. Allocated memory is still 157.3MB. Free memory was 94.8MB in the beginning and 86.1MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 14:59:45,293 INFO L158 Benchmark]: Boogie Preprocessor took 47.81ms. Allocated memory is still 157.3MB. Free memory was 86.1MB in the beginning and 81.0MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-14 14:59:45,293 INFO L158 Benchmark]: RCFGBuilder took 666.56ms. Allocated memory is still 157.3MB. Free memory was 81.0MB in the beginning and 77.0MB in the end (delta: 4.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-12-14 14:59:45,294 INFO L158 Benchmark]: TraceAbstraction took 5551.46ms. Allocated memory was 157.3MB in the beginning and 226.5MB in the end (delta: 69.2MB). Free memory was 76.1MB in the beginning and 107.8MB in the end (delta: -31.7MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2022-12-14 14:59:45,294 INFO L158 Benchmark]: Witness Printer took 212.56ms. Allocated memory is still 226.5MB. Free memory was 107.8MB in the beginning and 89.0MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 14:59:45,295 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 130.0MB. Free memory is still 72.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1938.37ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 87.9MB in the beginning and 94.8MB in the end (delta: -6.9MB). Peak memory consumption was 93.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 121.07ms. Allocated memory is still 157.3MB. Free memory was 94.8MB in the beginning and 86.1MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.81ms. Allocated memory is still 157.3MB. Free memory was 86.1MB in the beginning and 81.0MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 666.56ms. Allocated memory is still 157.3MB. Free memory was 81.0MB in the beginning and 77.0MB in the end (delta: 4.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5551.46ms. Allocated memory was 157.3MB in the beginning and 226.5MB in the end (delta: 69.2MB). Free memory was 76.1MB in the beginning and 107.8MB in the end (delta: -31.7MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. * Witness Printer took 212.56ms. Allocated memory is still 226.5MB. Free memory was 107.8MB in the beginning and 89.0MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 84 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.5s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 163 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 129 mSDsluCounter, 2038 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1738 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 646 IncrementalHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 300 mSDtfsCounter, 646 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 59 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=88occurred in iteration=3, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 26 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 38 LocationsWithAnnotation, 126 PreInvPairs, 136 NumberOfFragments, 218 HoareAnnotationTreeSize, 126 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 38 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 260 NumberOfCodeBlocks, 260 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 255 ConstructedInterpolants, 1 QuantifiedInterpolants, 988 SizeOfPredicates, 11 NumberOfNonLiveVariables, 844 ConjunctsInSsa, 111 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 76/80 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 7412]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 6811]: Loop Invariant Derived loop invariant: ((((\old(max_size) == max_size && !(str == 0)) && str == 0) && len % 18446744073709551616 < \old(max_size) % 18446744073709551616) && len % 18446744073709551616 < \old(max_size) % 18446744073709551616) && 18410715276689353099 + len <= 18446744073709551616 * ((18446744073708317066 + len) / 18446744073709551616) - InvariantResult [Line: 8911]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-12-14 14:59:45,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d5ddc7-722f-43cf-a029-cdb9d270d10a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE