./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_compare_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_52299248-2557-46fa-b868-ddfb6e5277cb/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52299248-2557-46fa-b868-ddfb6e5277cb/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_52299248-2557-46fa-b868-ddfb6e5277cb/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52299248-2557-46fa-b868-ddfb6e5277cb/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52299248-2557-46fa-b868-ddfb6e5277cb/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_52299248-2557-46fa-b868-ddfb6e5277cb/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 77e1920a9fb383fe60a227e2c350d8ffbcb07472e42f7f8334039488add8447f --- 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 14:50:24,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:50:24,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:50:24,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:50:24,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:50:24,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:50:24,979 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:50:24,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:50:24,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:50:24,981 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:50:24,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:50:24,983 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:50:24,983 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:50:24,983 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:50:24,984 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:50:24,985 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:50:24,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:50:24,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:50:24,987 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:50:24,988 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:50:24,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:50:24,990 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:50:24,991 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:50:24,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:50:24,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:50:24,993 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:50:24,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:50:24,994 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:50:24,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:50:24,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:50:24,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:50:24,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:50:24,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:50:24,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:50:24,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:50:24,997 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:50:24,998 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:50:24,998 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:50:24,998 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:50:24,999 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:50:24,999 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:50:25,000 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52299248-2557-46fa-b868-ddfb6e5277cb/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 14:50:25,015 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:50:25,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:50:25,015 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:50:25,016 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:50:25,016 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:50:25,016 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:50:25,016 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:50:25,016 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:50:25,017 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:50:25,017 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:50:25,017 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:50:25,017 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:50:25,017 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:50:25,017 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:50:25,017 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:50:25,018 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:50:25,018 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:50:25,018 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:50:25,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:50:25,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:50:25,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:50:25,019 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:50:25,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:50:25,019 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:50:25,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:50:25,019 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:50:25,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:50:25,020 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:50:25,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:50:25,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:50:25,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:50:25,020 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:50:25,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:50:25,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:50:25,020 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:50:25,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:50:25,021 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:50:25,021 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:50:25,021 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_52299248-2557-46fa-b868-ddfb6e5277cb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52299248-2557-46fa-b868-ddfb6e5277cb/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77e1920a9fb383fe60a227e2c350d8ffbcb07472e42f7f8334039488add8447f [2022-12-14 14:50:25,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:50:25,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:50:25,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:50:25,226 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:50:25,227 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:50:25,228 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52299248-2557-46fa-b868-ddfb6e5277cb/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i [2022-12-14 14:50:27,837 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:50:28,154 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:50:28,154 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52299248-2557-46fa-b868-ddfb6e5277cb/sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i [2022-12-14 14:50:28,175 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52299248-2557-46fa-b868-ddfb6e5277cb/bin/utaipan-gh47qXpMRh/data/08ca522ab/db494691fd0741d999bf9c843f28ce7b/FLAG9116ffe04 [2022-12-14 14:50:28,185 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52299248-2557-46fa-b868-ddfb6e5277cb/bin/utaipan-gh47qXpMRh/data/08ca522ab/db494691fd0741d999bf9c843f28ce7b [2022-12-14 14:50:28,187 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:50:28,188 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:50:28,188 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:50:28,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:50:28,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:50:28,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:50:28" (1/1) ... [2022-12-14 14:50:28,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ea6dcae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:50:28, skipping insertion in model container [2022-12-14 14:50:28,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:50:28" (1/1) ... [2022-12-14 14:50:28,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:50:28,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:50:28,447 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_52299248-2557-46fa-b868-ddfb6e5277cb/sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i[4492,4505] [2022-12-14 14:50:28,454 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_52299248-2557-46fa-b868-ddfb6e5277cb/sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i[4552,4565] [2022-12-14 14:50:29,194 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:50:29,195 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:50:29,195 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:50:29,196 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:50:29,197 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:50:29,207 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:50:29,208 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:50:29,209 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:50:29,209 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:50:29,278 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 14:50:29,278 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 14:50:29,279 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 14:50:29,282 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 14:50:29,284 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 14:50:29,284 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 14:50:29,563 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 14:50:29,564 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 14:50:29,565 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 14:50:29,566 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 14:50:29,567 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 14:50:29,568 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 14:50:29,568 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 14:50:29,569 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 14:50:29,569 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 14:50:29,570 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 14:50:29,570 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 14:50:29,719 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 14:50:29,753 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 14:50:29,763 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 14:50:29,791 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 14:50:29,799 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:50:29,799 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:50:29,843 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 14:50:29,854 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 14:50:29,855 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 14:50:29,861 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 14:50:29,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:50:29,917 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:50:29,930 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_52299248-2557-46fa-b868-ddfb6e5277cb/sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i[4492,4505] [2022-12-14 14:50:29,931 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_52299248-2557-46fa-b868-ddfb6e5277cb/sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i[4552,4565] [2022-12-14 14:50:29,963 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:50:29,963 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:50:29,963 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:50:29,964 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:50:29,964 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:50:29,970 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:50:29,970 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:50:29,971 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:50:29,971 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:50:29,977 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 14:50:29,977 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 14:50:29,978 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 14:50:29,980 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 14:50:29,981 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 14:50:29,982 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 14:50:30,000 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 14:50:30,000 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 14:50:30,001 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 14:50:30,002 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 14:50:30,002 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 14:50:30,003 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 14:50:30,004 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 14:50:30,004 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 14:50:30,005 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 14:50:30,005 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 14:50:30,005 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 14:50:30,023 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 14:50:30,041 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 14:50:30,047 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 14:50:30,061 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 14:50:30,067 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:50:30,067 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 14:50:30,111 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 14:50:30,116 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 14:50:30,117 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 14:50:30,122 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 14:50:30,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:50:30,305 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:50:30,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:50:30 WrapperNode [2022-12-14 14:50:30,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:50:30,306 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:50:30,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:50:30,307 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:50:30,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:50:30" (1/1) ... [2022-12-14 14:50:30,379 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:50:30" (1/1) ... [2022-12-14 14:50:30,426 INFO L138 Inliner]: procedures = 693, calls = 2779, calls flagged for inlining = 57, calls inlined = 5, statements flattened = 812 [2022-12-14 14:50:30,427 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:50:30,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:50:30,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:50:30,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:50:30,435 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:50:30" (1/1) ... [2022-12-14 14:50:30,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:50:30" (1/1) ... [2022-12-14 14:50:30,440 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:50:30" (1/1) ... [2022-12-14 14:50:30,440 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:50:30" (1/1) ... [2022-12-14 14:50:30,458 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:50:30" (1/1) ... [2022-12-14 14:50:30,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:50:30" (1/1) ... [2022-12-14 14:50:30,464 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:50:30" (1/1) ... [2022-12-14 14:50:30,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:50:30" (1/1) ... [2022-12-14 14:50:30,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:50:30,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:50:30,473 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:50:30,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:50:30,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:50:30" (1/1) ... [2022-12-14 14:50:30,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:50:30,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52299248-2557-46fa-b868-ddfb6e5277cb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:50:30,500 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52299248-2557-46fa-b868-ddfb6e5277cb/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:50:30,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52299248-2557-46fa-b868-ddfb6e5277cb/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:50:30,535 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2022-12-14 14:50:30,535 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2022-12-14 14:50:30,535 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_compare [2022-12-14 14:50:30,535 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_compare [2022-12-14 14:50:30,535 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2022-12-14 14:50:30,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2022-12-14 14:50:30,536 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 14:50:30,536 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-14 14:50:30,536 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-14 14:50:30,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 14:50:30,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 14:50:30,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 14:50:30,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 14:50:30,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:50:30,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 14:50:30,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:50:30,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:50:30,537 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-14 14:50:30,537 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-14 14:50:30,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 14:50:30,537 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2022-12-14 14:50:30,537 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2022-12-14 14:50:30,537 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 14:50:30,537 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 14:50:30,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 14:50:30,538 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-12-14 14:50:30,538 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-12-14 14:50:30,538 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-12-14 14:50:30,538 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-12-14 14:50:30,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 14:50:30,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:50:30,731 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:50:30,733 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:50:31,556 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:50:31,689 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:50:31,689 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 14:50:31,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:50:31 BoogieIcfgContainer [2022-12-14 14:50:31,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:50:31,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:50:31,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:50:31,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:50:31,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:50:28" (1/3) ... [2022-12-14 14:50:31,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16549f44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:50:31, skipping insertion in model container [2022-12-14 14:50:31,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:50:30" (2/3) ... [2022-12-14 14:50:31,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16549f44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:50:31, skipping insertion in model container [2022-12-14 14:50:31,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:50:31" (3/3) ... [2022-12-14 14:50:31,708 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_compare_harness_negated.i [2022-12-14 14:50:31,726 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:50:31,726 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 14:50:31,776 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:50:31,782 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;@59156cee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:50:31,782 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 14:50:31,786 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 56 states have (on average 1.2678571428571428) internal successors, (71), 57 states have internal predecessors, (71), 33 states have call successors, (33), 10 states have call predecessors, (33), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-12-14 14:50:31,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-12-14 14:50:31,794 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:50:31,795 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:50:31,796 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:50:31,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:50:31,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1177442612, now seen corresponding path program 1 times [2022-12-14 14:50:31,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:50:31,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525973970] [2022-12-14 14:50:31,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:50:31,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:50:32,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:50:32,398 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:50:32,398 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:50:32,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525973970] [2022-12-14 14:50:32,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525973970] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:50:32,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:50:32,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:50:32,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481037231] [2022-12-14 14:50:32,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:50:32,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:50:32,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:50:32,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:50:32,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:50:32,429 INFO L87 Difference]: Start difference. First operand has 101 states, 56 states have (on average 1.2678571428571428) internal successors, (71), 57 states have internal predecessors, (71), 33 states have call successors, (33), 10 states have call predecessors, (33), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-14 14:50:32,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:50:32,578 INFO L93 Difference]: Finished difference Result 162 states and 228 transitions. [2022-12-14 14:50:32,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:50:32,581 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 41 [2022-12-14 14:50:32,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:50:32,588 INFO L225 Difference]: With dead ends: 162 [2022-12-14 14:50:32,588 INFO L226 Difference]: Without dead ends: 116 [2022-12-14 14:50:32,591 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 14:50:32,594 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 9 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:50:32,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 370 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:50:32,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-12-14 14:50:32,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 113. [2022-12-14 14:50:32,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 64 states have (on average 1.234375) internal successors, (79), 65 states have internal predecessors, (79), 38 states have call successors, (38), 10 states have call predecessors, (38), 10 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2022-12-14 14:50:32,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 154 transitions. [2022-12-14 14:50:32,637 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 154 transitions. Word has length 41 [2022-12-14 14:50:32,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:50:32,638 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 154 transitions. [2022-12-14 14:50:32,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-14 14:50:32,638 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 154 transitions. [2022-12-14 14:50:32,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-14 14:50:32,641 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:50:32,641 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:50:32,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:50:32,642 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:50:32,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:50:32,642 INFO L85 PathProgramCache]: Analyzing trace with hash -380918641, now seen corresponding path program 1 times [2022-12-14 14:50:32,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:50:32,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587827359] [2022-12-14 14:50:32,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:50:32,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:50:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:50:32,936 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:50:32,936 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:50:32,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587827359] [2022-12-14 14:50:32,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587827359] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:50:32,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:50:32,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:50:32,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098855343] [2022-12-14 14:50:32,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:50:32,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:50:32,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:50:32,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:50:32,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:50:32,939 INFO L87 Difference]: Start difference. First operand 113 states and 154 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-14 14:50:33,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:50:33,039 INFO L93 Difference]: Finished difference Result 135 states and 181 transitions. [2022-12-14 14:50:33,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:50:33,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 45 [2022-12-14 14:50:33,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:50:33,042 INFO L225 Difference]: With dead ends: 135 [2022-12-14 14:50:33,042 INFO L226 Difference]: Without dead ends: 119 [2022-12-14 14:50:33,042 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 14:50:33,044 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:50:33,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 355 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:50:33,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-12-14 14:50:33,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2022-12-14 14:50:33,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 69 states have (on average 1.2173913043478262) internal successors, (84), 69 states have internal predecessors, (84), 38 states have call successors, (38), 10 states have call predecessors, (38), 11 states have return successors, (39), 39 states have call predecessors, (39), 37 states have call successors, (39) [2022-12-14 14:50:33,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 161 transitions. [2022-12-14 14:50:33,059 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 161 transitions. Word has length 45 [2022-12-14 14:50:33,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:50:33,060 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 161 transitions. [2022-12-14 14:50:33,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-14 14:50:33,060 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 161 transitions. [2022-12-14 14:50:33,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-14 14:50:33,062 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:50:33,062 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:50:33,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:50:33,063 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:50:33,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:50:33,063 INFO L85 PathProgramCache]: Analyzing trace with hash 2455070, now seen corresponding path program 1 times [2022-12-14 14:50:33,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:50:33,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750460135] [2022-12-14 14:50:33,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:50:33,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:50:33,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:50:33,661 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 14:50:33,661 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:50:33,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750460135] [2022-12-14 14:50:33,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750460135] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:50:33,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:50:33,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 14:50:33,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356738826] [2022-12-14 14:50:33,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:50:33,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 14:50:33,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:50:33,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 14:50:33,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:50:33,663 INFO L87 Difference]: Start difference. First operand 119 states and 161 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-12-14 14:50:33,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:50:33,825 INFO L93 Difference]: Finished difference Result 143 states and 189 transitions. [2022-12-14 14:50:33,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:50:33,825 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 46 [2022-12-14 14:50:33,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:50:33,827 INFO L225 Difference]: With dead ends: 143 [2022-12-14 14:50:33,827 INFO L226 Difference]: Without dead ends: 126 [2022-12-14 14:50:33,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:50:33,828 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 18 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:50:33,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 608 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:50:33,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-12-14 14:50:33,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 123. [2022-12-14 14:50:33,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 71 states have (on average 1.2112676056338028) internal successors, (86), 72 states have internal predecessors, (86), 40 states have call successors, (40), 10 states have call predecessors, (40), 11 states have return successors, (40), 40 states have call predecessors, (40), 38 states have call successors, (40) [2022-12-14 14:50:33,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 166 transitions. [2022-12-14 14:50:33,842 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 166 transitions. Word has length 46 [2022-12-14 14:50:33,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:50:33,842 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 166 transitions. [2022-12-14 14:50:33,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-12-14 14:50:33,843 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 166 transitions. [2022-12-14 14:50:33,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-12-14 14:50:33,845 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:50:33,846 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:50:33,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 14:50:33,846 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:50:33,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:50:33,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1966032701, now seen corresponding path program 1 times [2022-12-14 14:50:33,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:50:33,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505004292] [2022-12-14 14:50:33,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:50:33,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:50:33,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:50:34,314 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-12-14 14:50:34,314 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:50:34,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505004292] [2022-12-14 14:50:34,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505004292] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:50:34,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:50:34,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 14:50:34,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122264849] [2022-12-14 14:50:34,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:50:34,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 14:50:34,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:50:34,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 14:50:34,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:50:34,317 INFO L87 Difference]: Start difference. First operand 123 states and 166 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 4 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2022-12-14 14:50:34,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:50:34,471 INFO L93 Difference]: Finished difference Result 179 states and 236 transitions. [2022-12-14 14:50:34,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 14:50:34,472 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 4 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 83 [2022-12-14 14:50:34,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:50:34,475 INFO L225 Difference]: With dead ends: 179 [2022-12-14 14:50:34,475 INFO L226 Difference]: Without dead ends: 139 [2022-12-14 14:50:34,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-14 14:50:34,476 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 28 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:50:34,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 614 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:50:34,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-12-14 14:50:34,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 134. [2022-12-14 14:50:34,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 79 states have (on average 1.2151898734177216) internal successors, (96), 80 states have internal predecessors, (96), 41 states have call successors, (41), 11 states have call predecessors, (41), 13 states have return successors, (42), 42 states have call predecessors, (42), 40 states have call successors, (42) [2022-12-14 14:50:34,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 179 transitions. [2022-12-14 14:50:34,491 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 179 transitions. Word has length 83 [2022-12-14 14:50:34,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:50:34,491 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 179 transitions. [2022-12-14 14:50:34,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 4 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2022-12-14 14:50:34,492 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 179 transitions. [2022-12-14 14:50:34,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-14 14:50:34,494 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:50:34,494 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:50:34,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 14:50:34,494 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:50:34,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:50:34,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1256167175, now seen corresponding path program 1 times [2022-12-14 14:50:34,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:50:34,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837836572] [2022-12-14 14:50:34,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:50:34,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:50:34,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:50:35,716 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 14:50:35,716 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:50:35,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837836572] [2022-12-14 14:50:35,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837836572] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:50:35,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1567787374] [2022-12-14 14:50:35,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:50:35,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:50:35,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52299248-2557-46fa-b868-ddfb6e5277cb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:50:35,718 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52299248-2557-46fa-b868-ddfb6e5277cb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:50:35,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52299248-2557-46fa-b868-ddfb6e5277cb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 14:50:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:50:36,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 2553 conjuncts, 33 conjunts are in the unsatisfiable core [2022-12-14 14:50:36,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:50:36,512 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 14:50:36,512 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:50:36,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1567787374] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:50:36,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 14:50:36,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 15 [2022-12-14 14:50:36,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796434463] [2022-12-14 14:50:36,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:50:36,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 14:50:36,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:50:36,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 14:50:36,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2022-12-14 14:50:36,514 INFO L87 Difference]: Start difference. First operand 134 states and 179 transitions. Second operand has 9 states, 6 states have (on average 6.0) internal successors, (36), 8 states have internal predecessors, (36), 6 states have call successors, (14), 2 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2022-12-14 14:50:36,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:50:36,705 INFO L93 Difference]: Finished difference Result 159 states and 205 transitions. [2022-12-14 14:50:36,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 14:50:36,706 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 6 states have (on average 6.0) internal successors, (36), 8 states have internal predecessors, (36), 6 states have call successors, (14), 2 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 67 [2022-12-14 14:50:36,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:50:36,706 INFO L225 Difference]: With dead ends: 159 [2022-12-14 14:50:36,706 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 14:50:36,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 62 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2022-12-14 14:50:36,708 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 20 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:50:36,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 143 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:50:36,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 14:50:36,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 14:50:36,708 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 14:50:36,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 14:50:36,709 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67 [2022-12-14 14:50:36,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:50:36,709 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 14:50:36,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 6 states have (on average 6.0) internal successors, (36), 8 states have internal predecessors, (36), 6 states have call successors, (14), 2 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2022-12-14 14:50:36,709 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 14:50:36,709 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 14:50:36,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 14:50:36,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52299248-2557-46fa-b868-ddfb6e5277cb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 14:50:36,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52299248-2557-46fa-b868-ddfb6e5277cb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:50:36,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 14:50:37,062 INFO L899 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthEXIT(lines 6800 6804) no Hoare annotation was computed. [2022-12-14 14:50:37,063 INFO L895 garLoopResultBuilder]: At program point L6810(line 6810) 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|) (<= 1234551 .cse0) (< (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 14:50:37,063 INFO L899 garLoopResultBuilder]: For program point L6807-1(line 6807) no Hoare annotation was computed. [2022-12-14 14:50:37,063 INFO L895 garLoopResultBuilder]: At program point L6807(line 6807) 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 14:50:37,063 INFO L899 garLoopResultBuilder]: For program point L6810-3(line 6810) no Hoare annotation was computed. [2022-12-14 14:50:37,063 INFO L895 garLoopResultBuilder]: At program point L6810-2(line 6810) 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|) (<= 1234551 .cse0) (< (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 14:50:37,063 INFO L899 garLoopResultBuilder]: For program point L6810-1(lines 6810 6811) no Hoare annotation was computed. [2022-12-14 14:50:37,064 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 14:50:37,064 INFO L895 garLoopResultBuilder]: At program point L6810-5(lines 6810 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|) (<= 1234551 .cse0) (< (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 14:50:37,064 INFO L899 garLoopResultBuilder]: For program point L6801-1(line 6801) no Hoare annotation was computed. [2022-12-14 14:50:37,064 INFO L895 garLoopResultBuilder]: At program point L6801(line 6801) 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 14:50:37,064 INFO L899 garLoopResultBuilder]: For program point L6802-1(line 6802) no Hoare annotation was computed. [2022-12-14 14:50:37,064 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6800 6804) the Hoare annotation is: true [2022-12-14 14:50:37,064 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6882 6887) the Hoare annotation is: true [2022-12-14 14:50:37,064 INFO L899 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6882 6887) no Hoare annotation was computed. [2022-12-14 14:50:37,064 INFO L899 garLoopResultBuilder]: For program point L6883-1(lines 6883 6885) no Hoare annotation was computed. [2022-12-14 14:50:37,065 INFO L895 garLoopResultBuilder]: At program point L6883(lines 6883 6885) the Hoare annotation is: (and (<= |bounded_malloc_#in~size| bounded_malloc_~size) (<= bounded_malloc_~size |bounded_malloc_#in~size|)) [2022-12-14 14:50:37,065 INFO L899 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2022-12-14 14:50:37,065 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 261) the Hoare annotation is: true [2022-12-14 14:50:37,065 INFO L899 garLoopResultBuilder]: For program point aws_string_bytesEXIT(lines 6242 6246) no Hoare annotation was computed. [2022-12-14 14:50:37,065 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6242 6246) the Hoare annotation is: true [2022-12-14 14:50:37,065 INFO L902 garLoopResultBuilder]: At program point L6244-1(line 6244) the Hoare annotation is: true [2022-12-14 14:50:37,065 INFO L899 garLoopResultBuilder]: For program point L6244-2(line 6244) no Hoare annotation was computed. [2022-12-14 14:50:37,065 INFO L902 garLoopResultBuilder]: At program point L6244(line 6244) the Hoare annotation is: true [2022-12-14 14:50:37,065 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 210 212) the Hoare annotation is: true [2022-12-14 14:50:37,065 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2022-12-14 14:50:37,066 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6889 6891) the Hoare annotation is: true [2022-12-14 14:50:37,066 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6889 6891) no Hoare annotation was computed. [2022-12-14 14:50:37,066 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6252 6257) the Hoare annotation is: true [2022-12-14 14:50:37,066 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6252 6257) no Hoare annotation was computed. [2022-12-14 14:50:37,066 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2022-12-14 14:50:37,066 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 266) the Hoare annotation is: true [2022-12-14 14:50:37,066 INFO L899 garLoopResultBuilder]: For program point L7100-1(lines 7099 7112) no Hoare annotation was computed. [2022-12-14 14:50:37,066 INFO L895 garLoopResultBuilder]: At program point L7100(line 7100) the Hoare annotation is: false [2022-12-14 14:50:37,066 INFO L895 garLoopResultBuilder]: At program point L9557(line 9557) the Hoare annotation is: false [2022-12-14 14:50:37,066 INFO L895 garLoopResultBuilder]: At program point L9557-1(line 9557) the Hoare annotation is: false [2022-12-14 14:50:37,066 INFO L899 garLoopResultBuilder]: For program point L9557-2(line 9557) no Hoare annotation was computed. [2022-12-14 14:50:37,067 INFO L899 garLoopResultBuilder]: For program point L9549(lines 9549 9551) no Hoare annotation was computed. [2022-12-14 14:50:37,067 INFO L899 garLoopResultBuilder]: For program point L9553-1(lines 9537 9559) no Hoare annotation was computed. [2022-12-14 14:50:37,067 INFO L902 garLoopResultBuilder]: At program point L9537(lines 9537 9559) the Hoare annotation is: true [2022-12-14 14:50:37,067 INFO L895 garLoopResultBuilder]: At program point L9554(line 9554) the Hoare annotation is: false [2022-12-14 14:50:37,067 INFO L895 garLoopResultBuilder]: At program point L9554-1(line 9554) the Hoare annotation is: false [2022-12-14 14:50:37,067 INFO L899 garLoopResultBuilder]: For program point L9554-2(line 9554) no Hoare annotation was computed. [2022-12-14 14:50:37,067 INFO L899 garLoopResultBuilder]: For program point L9542-1(lines 9542 9544) no Hoare annotation was computed. [2022-12-14 14:50:37,067 INFO L895 garLoopResultBuilder]: At program point L7110(line 7110) the Hoare annotation is: false [2022-12-14 14:50:37,067 INFO L895 garLoopResultBuilder]: At program point L9542-2(line 9542) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.offset| 0)) [2022-12-14 14:50:37,067 INFO L899 garLoopResultBuilder]: For program point L9542-3(line 9542) no Hoare annotation was computed. [2022-12-14 14:50:37,068 INFO L902 garLoopResultBuilder]: At program point L9538(line 9538) the Hoare annotation is: true [2022-12-14 14:50:37,068 INFO L895 garLoopResultBuilder]: At program point L7106(line 7106) the Hoare annotation is: false [2022-12-14 14:50:37,068 INFO L895 garLoopResultBuilder]: At program point L9542(line 9542) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.offset| 0)) [2022-12-14 14:50:37,068 INFO L899 garLoopResultBuilder]: For program point L7110-1(line 7110) no Hoare annotation was computed. [2022-12-14 14:50:37,068 INFO L899 garLoopResultBuilder]: For program point L9538-5(lines 9538 9539) no Hoare annotation was computed. [2022-12-14 14:50:37,068 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 14:50:37,068 INFO L899 garLoopResultBuilder]: For program point L7106-1(line 7106) no Hoare annotation was computed. [2022-12-14 14:50:37,068 INFO L899 garLoopResultBuilder]: For program point L9538-1(lines 9538 9539) no Hoare annotation was computed. [2022-12-14 14:50:37,068 INFO L899 garLoopResultBuilder]: For program point L9542-5(lines 9542 9544) no Hoare annotation was computed. [2022-12-14 14:50:37,068 INFO L902 garLoopResultBuilder]: At program point L9538-2(line 9538) the Hoare annotation is: true [2022-12-14 14:50:37,068 INFO L899 garLoopResultBuilder]: For program point L9538-3(line 9538) no Hoare annotation was computed. [2022-12-14 14:50:37,069 INFO L895 garLoopResultBuilder]: At program point L9547(line 9547) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_compare_harness_~str_b~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_b~1#1.offset| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.offset| 0)) [2022-12-14 14:50:37,069 INFO L899 garLoopResultBuilder]: For program point L9547-1(line 9547) no Hoare annotation was computed. [2022-12-14 14:50:37,069 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 14:50:37,069 INFO L899 garLoopResultBuilder]: For program point L7107-1(lines 7107 7109) no Hoare annotation was computed. [2022-12-14 14:50:37,069 INFO L895 garLoopResultBuilder]: At program point L7107(lines 7107 7109) the Hoare annotation is: false [2022-12-14 14:50:37,069 INFO L899 garLoopResultBuilder]: For program point L7099(lines 7099 7112) no Hoare annotation was computed. [2022-12-14 14:50:37,069 INFO L895 garLoopResultBuilder]: At program point L9548(line 9548) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_compare_harness_~str_b~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_b~1#1.offset| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.offset| 0)) [2022-12-14 14:50:37,069 INFO L899 garLoopResultBuilder]: For program point L9548-1(line 9548) no Hoare annotation was computed. [2022-12-14 14:50:37,069 INFO L899 garLoopResultBuilder]: For program point L9548-2(lines 9548 9552) no Hoare annotation was computed. [2022-12-14 14:50:37,069 INFO L899 garLoopResultBuilder]: For program point L9548-3(lines 9537 9559) no Hoare annotation was computed. [2022-12-14 14:50:37,069 INFO L895 garLoopResultBuilder]: At program point L9544(line 9544) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.offset| 0)) [2022-12-14 14:50:37,070 INFO L899 garLoopResultBuilder]: For program point L9544-1(line 9544) no Hoare annotation was computed. [2022-12-14 14:50:37,070 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2022-12-14 14:50:37,070 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2022-12-14 14:50:37,070 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2022-12-14 14:50:37,070 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2022-12-14 14:50:37,070 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 222 224) the Hoare annotation is: true [2022-12-14 14:50:37,070 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2022-12-14 14:50:37,070 INFO L899 garLoopResultBuilder]: For program point L9220-3(line 9220) no Hoare annotation was computed. [2022-12-14 14:50:37,070 INFO L895 garLoopResultBuilder]: At program point L9220-4(line 9220) the Hoare annotation is: (or (not (= |aws_string_compare_#in~a.offset| 0)) (not (= |aws_string_compare_#in~a.base| 0)) (and (= aws_string_compare_~a.base 0) (= aws_string_compare_~a.offset 0))) [2022-12-14 14:50:37,070 INFO L899 garLoopResultBuilder]: For program point L9220-5(line 9220) no Hoare annotation was computed. [2022-12-14 14:50:37,071 INFO L899 garLoopResultBuilder]: For program point L9239-2(line 9239) no Hoare annotation was computed. [2022-12-14 14:50:37,071 INFO L895 garLoopResultBuilder]: At program point L9241(line 9241) the Hoare annotation is: (or (not (= |aws_string_compare_#in~a.offset| 0)) (not (= |aws_string_compare_#in~a.base| 0))) [2022-12-14 14:50:37,071 INFO L895 garLoopResultBuilder]: At program point L9241-1(line 9241) the Hoare annotation is: (or (not (= |aws_string_compare_#in~a.offset| 0)) (not (= |aws_string_compare_#in~a.base| 0))) [2022-12-14 14:50:37,071 INFO L895 garLoopResultBuilder]: At program point L9239(line 9239) the Hoare annotation is: (or (not (= |aws_string_compare_#in~a.offset| 0)) (not (= |aws_string_compare_#in~a.base| 0))) [2022-12-14 14:50:37,071 INFO L899 garLoopResultBuilder]: For program point L9241-2(line 9241) no Hoare annotation was computed. [2022-12-14 14:50:37,071 INFO L895 garLoopResultBuilder]: At program point L9239-1(line 9239) the Hoare annotation is: (or (not (= |aws_string_compare_#in~a.offset| 0)) (not (= |aws_string_compare_#in~a.base| 0))) [2022-12-14 14:50:37,071 INFO L899 garLoopResultBuilder]: For program point L9229(lines 9229 9233) no Hoare annotation was computed. [2022-12-14 14:50:37,071 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 9218 9252) the Hoare annotation is: true [2022-12-14 14:50:37,071 INFO L899 garLoopResultBuilder]: For program point L9221(lines 9221 9223) no Hoare annotation was computed. [2022-12-14 14:50:37,071 INFO L899 garLoopResultBuilder]: For program point L9219(line 9219) no Hoare annotation was computed. [2022-12-14 14:50:37,072 INFO L895 garLoopResultBuilder]: At program point L9219-2(line 9219) the Hoare annotation is: (or (not (= |aws_string_compare_#in~a.offset| 0)) (not (= |aws_string_compare_#in~a.base| 0)) (and (= aws_string_compare_~a.base 0) (= aws_string_compare_~a.offset 0))) [2022-12-14 14:50:37,072 INFO L899 garLoopResultBuilder]: For program point L9219-3(line 9219) no Hoare annotation was computed. [2022-12-14 14:50:37,072 INFO L895 garLoopResultBuilder]: At program point L9219-4(line 9219) the Hoare annotation is: (or (not (= |aws_string_compare_#in~a.offset| 0)) (not (= |aws_string_compare_#in~a.base| 0)) (and (= aws_string_compare_~a.base 0) (= aws_string_compare_~a.offset 0))) [2022-12-14 14:50:37,072 INFO L899 garLoopResultBuilder]: For program point L9219-5(line 9219) no Hoare annotation was computed. [2022-12-14 14:50:37,072 INFO L899 garLoopResultBuilder]: For program point aws_string_compareEXIT(lines 9218 9252) no Hoare annotation was computed. [2022-12-14 14:50:37,072 INFO L895 garLoopResultBuilder]: At program point L9240(line 9240) the Hoare annotation is: (or (not (= |aws_string_compare_#in~a.offset| 0)) (not (= |aws_string_compare_#in~a.base| 0))) [2022-12-14 14:50:37,072 INFO L895 garLoopResultBuilder]: At program point L9240-1(line 9240) the Hoare annotation is: (or (not (= |aws_string_compare_#in~a.offset| 0)) (not (= |aws_string_compare_#in~a.base| 0))) [2022-12-14 14:50:37,072 INFO L899 garLoopResultBuilder]: For program point L9240-2(line 9240) no Hoare annotation was computed. [2022-12-14 14:50:37,072 INFO L899 garLoopResultBuilder]: For program point aws_string_compareFINAL(lines 9218 9252) no Hoare annotation was computed. [2022-12-14 14:50:37,072 INFO L899 garLoopResultBuilder]: For program point L9220(line 9220) no Hoare annotation was computed. [2022-12-14 14:50:37,072 INFO L895 garLoopResultBuilder]: At program point L9220-2(line 9220) the Hoare annotation is: (or (not (= |aws_string_compare_#in~a.offset| 0)) (not (= |aws_string_compare_#in~a.base| 0)) (and (= aws_string_compare_~a.base 0) (= aws_string_compare_~a.offset 0))) [2022-12-14 14:50:37,073 INFO L899 garLoopResultBuilder]: For program point L9224(lines 9224 9228) no Hoare annotation was computed. [2022-12-14 14:50:37,075 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-14 14:50:37,077 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:50:37,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:50:37 BoogieIcfgContainer [2022-12-14 14:50:37,087 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:50:37,087 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:50:37,087 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:50:37,087 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:50:37,088 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:50:31" (3/4) ... [2022-12-14 14:50:37,090 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 14:50:37,094 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_string_is_allocated_bounded_length [2022-12-14 14:50:37,094 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2022-12-14 14:50:37,094 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2022-12-14 14:50:37,094 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2022-12-14 14:50:37,094 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_bytes [2022-12-14 14:50:37,094 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-12-14 14:50:37,094 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-12-14 14:50:37,094 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_compare [2022-12-14 14:50:37,094 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2022-12-14 14:50:37,094 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2022-12-14 14:50:37,102 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 138 nodes and edges [2022-12-14 14:50:37,103 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 59 nodes and edges [2022-12-14 14:50:37,103 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-12-14 14:50:37,104 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-12-14 14:50:37,104 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-12-14 14:50:37,105 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 14:50:37,105 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 14:50:37,106 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 14:50:37,126 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\old(max_size) == max_size && 1234551 <= \old(max_size) % 18446744073709551616) && len % 18446744073709551616 < \old(max_size) % 18446744073709551616) && len % 18446744073709551616 < \old(max_size) % 18446744073709551616 [2022-12-14 14:50:37,469 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52299248-2557-46fa-b868-ddfb6e5277cb/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 14:50:37,469 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:50:37,469 INFO L158 Benchmark]: Toolchain (without parser) took 9281.57ms. Allocated memory was 125.8MB in the beginning and 348.1MB in the end (delta: 222.3MB). Free memory was 90.0MB in the beginning and 244.6MB in the end (delta: -154.6MB). Peak memory consumption was 224.9MB. Max. memory is 16.1GB. [2022-12-14 14:50:37,469 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 125.8MB. Free memory was 94.7MB in the beginning and 94.6MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:50:37,470 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2117.32ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 89.5MB in the beginning and 72.5MB in the end (delta: 17.1MB). Peak memory consumption was 94.0MB. Max. memory is 16.1GB. [2022-12-14 14:50:37,470 INFO L158 Benchmark]: Boogie Procedure Inliner took 120.49ms. Allocated memory is still 151.0MB. Free memory was 72.5MB in the beginning and 61.1MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 14:50:37,470 INFO L158 Benchmark]: Boogie Preprocessor took 45.14ms. Allocated memory is still 151.0MB. Free memory was 61.1MB in the beginning and 54.0MB in the end (delta: 7.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-14 14:50:37,470 INFO L158 Benchmark]: RCFGBuilder took 1219.19ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 54.0MB in the beginning and 59.9MB in the end (delta: -5.9MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. [2022-12-14 14:50:37,470 INFO L158 Benchmark]: TraceAbstraction took 5385.26ms. Allocated memory was 182.5MB in the beginning and 289.4MB in the end (delta: 107.0MB). Free memory was 118.0MB in the beginning and 136.6MB in the end (delta: -18.7MB). Peak memory consumption was 87.2MB. Max. memory is 16.1GB. [2022-12-14 14:50:37,471 INFO L158 Benchmark]: Witness Printer took 381.78ms. Allocated memory was 289.4MB in the beginning and 348.1MB in the end (delta: 58.7MB). Free memory was 136.6MB in the beginning and 244.6MB in the end (delta: -108.0MB). Peak memory consumption was 107.0MB. Max. memory is 16.1GB. [2022-12-14 14:50:37,472 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 125.8MB. Free memory was 94.7MB in the beginning and 94.6MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2117.32ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 89.5MB in the beginning and 72.5MB in the end (delta: 17.1MB). Peak memory consumption was 94.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 120.49ms. Allocated memory is still 151.0MB. Free memory was 72.5MB in the beginning and 61.1MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.14ms. Allocated memory is still 151.0MB. Free memory was 61.1MB in the beginning and 54.0MB in the end (delta: 7.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1219.19ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 54.0MB in the beginning and 59.9MB in the end (delta: -5.9MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5385.26ms. Allocated memory was 182.5MB in the beginning and 289.4MB in the end (delta: 107.0MB). Free memory was 118.0MB in the beginning and 136.6MB in the end (delta: -18.7MB). Peak memory consumption was 87.2MB. Max. memory is 16.1GB. * Witness Printer took 381.78ms. Allocated memory was 289.4MB in the beginning and 348.1MB in the end (delta: 58.7MB). Free memory was 136.6MB in the beginning and 244.6MB in the end (delta: -108.0MB). Peak memory consumption was 107.0MB. 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 11 procedures, 101 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.3s, OverallIterations: 5, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 87 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 75 mSDsluCounter, 2090 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1562 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 389 IncrementalHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 528 mSDtfsCounter, 389 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 70 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=4, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 11 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 150 PreInvPairs, 157 NumberOfFragments, 288 HoareAnnotationTreeSize, 150 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 45 FomulaSimplificationsInter, 24 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 349 NumberOfCodeBlocks, 349 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 343 ConstructedInterpolants, 0 QuantifiedInterpolants, 810 SizeOfPredicates, 7 NumberOfNonLiveVariables, 2553 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 139/143 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: 9537]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6810]: Loop Invariant Derived loop invariant: ((\old(max_size) == max_size && 1234551 <= \old(max_size) % 18446744073709551616) && len % 18446744073709551616 < \old(max_size) % 18446744073709551616) && len % 18446744073709551616 < \old(max_size) % 18446744073709551616 RESULT: Ultimate proved your program to be correct! [2022-12-14 14:50:37,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52299248-2557-46fa-b868-ddfb6e5277cb/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE