./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.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_1ddad82b-5815-46a4-bd69-5549c3fe0a9a/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddad82b-5815-46a4-bd69-5549c3fe0a9a/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_1ddad82b-5815-46a4-bd69-5549c3fe0a9a/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddad82b-5815-46a4-bd69-5549c3fe0a9a/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddad82b-5815-46a4-bd69-5549c3fe0a9a/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_1ddad82b-5815-46a4-bd69-5549c3fe0a9a/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 7a14ff88669e01083ca46db0c80d319fe5a2f969bf71d428fc27ed5e7149831c --- 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 16:01:54,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 16:01:54,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 16:01:54,347 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 16:01:54,348 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 16:01:54,348 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 16:01:54,349 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 16:01:54,350 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 16:01:54,351 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 16:01:54,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 16:01:54,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 16:01:54,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 16:01:54,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 16:01:54,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 16:01:54,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 16:01:54,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 16:01:54,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 16:01:54,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 16:01:54,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 16:01:54,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 16:01:54,360 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 16:01:54,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 16:01:54,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 16:01:54,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 16:01:54,364 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 16:01:54,364 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 16:01:54,365 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 16:01:54,365 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 16:01:54,365 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 16:01:54,366 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 16:01:54,366 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 16:01:54,367 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 16:01:54,367 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 16:01:54,368 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 16:01:54,368 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 16:01:54,368 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 16:01:54,369 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 16:01:54,369 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 16:01:54,369 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 16:01:54,370 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 16:01:54,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 16:01:54,371 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddad82b-5815-46a4-bd69-5549c3fe0a9a/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 16:01:54,385 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 16:01:54,385 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 16:01:54,386 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 16:01:54,386 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 16:01:54,386 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 16:01:54,386 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 16:01:54,386 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 16:01:54,387 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 16:01:54,387 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 16:01:54,387 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 16:01:54,387 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 16:01:54,387 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 16:01:54,387 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 16:01:54,387 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 16:01:54,387 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 16:01:54,388 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 16:01:54,388 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 16:01:54,388 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 16:01:54,388 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 16:01:54,388 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 16:01:54,389 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 16:01:54,389 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 16:01:54,389 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 16:01:54,389 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 16:01:54,389 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 16:01:54,389 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 16:01:54,389 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 16:01:54,389 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 16:01:54,390 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 16:01:54,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 16:01:54,390 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 16:01:54,390 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 16:01:54,390 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 16:01:54,390 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 16:01:54,390 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 16:01:54,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 16:01:54,391 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 16:01:54,391 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 16:01:54,391 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_1ddad82b-5815-46a4-bd69-5549c3fe0a9a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddad82b-5815-46a4-bd69-5549c3fe0a9a/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a14ff88669e01083ca46db0c80d319fe5a2f969bf71d428fc27ed5e7149831c [2022-12-14 16:01:54,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 16:01:54,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 16:01:54,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 16:01:54,572 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 16:01:54,573 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 16:01:54,574 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddad82b-5815-46a4-bd69-5549c3fe0a9a/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i [2022-12-14 16:01:57,093 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 16:01:57,410 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 16:01:57,410 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddad82b-5815-46a4-bd69-5549c3fe0a9a/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i [2022-12-14 16:01:57,428 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddad82b-5815-46a4-bd69-5549c3fe0a9a/bin/utaipan-gh47qXpMRh/data/c8cd14075/31eaad2264ac447e9ed7cd541ca530cf/FLAG284d8084c [2022-12-14 16:01:57,643 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddad82b-5815-46a4-bd69-5549c3fe0a9a/bin/utaipan-gh47qXpMRh/data/c8cd14075/31eaad2264ac447e9ed7cd541ca530cf [2022-12-14 16:01:57,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 16:01:57,646 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 16:01:57,647 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 16:01:57,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 16:01:57,650 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 16:01:57,650 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:01:57" (1/1) ... [2022-12-14 16:01:57,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61b2063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:01:57, skipping insertion in model container [2022-12-14 16:01:57,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:01:57" (1/1) ... [2022-12-14 16:01:57,657 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 16:01:57,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 16:01:57,901 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_1ddad82b-5815-46a4-bd69-5549c3fe0a9a/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i[4510,4523] [2022-12-14 16:01:57,907 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_1ddad82b-5815-46a4-bd69-5549c3fe0a9a/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i[4570,4583] [2022-12-14 16:01:58,582 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 16:01:58,585 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 16:01:58,586 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 16:01:58,586 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 16:01:58,587 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 16:01:58,587 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 16:01:58,589 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 16:01:58,596 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 16:01:58,597 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 16:01:58,597 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 16:01:58,598 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 16:01:58,599 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 16:01:58,653 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 16:01:58,654 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 16:01:58,654 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 16:01:58,658 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 16:01:58,659 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 16:01:58,660 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 16:01:58,858 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 16:01:58,859 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 16:01:58,860 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 16:01:58,861 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 16:01:58,861 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 16:01:58,862 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 16:01:58,863 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 16:01:58,863 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 16:01:58,864 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 16:01:58,864 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 16:01:58,865 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 16:01:58,975 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 16:01:58,996 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 16:01:59,003 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 16:01:59,005 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 16:01:59,012 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 16:01:59,019 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 16:01:59,023 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 16:01:59,024 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 16:01:59,024 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 16:01:59,033 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 16:01:59,038 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 16:01:59,039 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 16:01:59,042 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 16:01:59,048 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 16:01:59,078 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 16:01:59,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 16:01:59,111 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 16:01:59,121 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_1ddad82b-5815-46a4-bd69-5549c3fe0a9a/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i[4510,4523] [2022-12-14 16:01:59,121 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_1ddad82b-5815-46a4-bd69-5549c3fe0a9a/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness.i[4570,4583] [2022-12-14 16:01:59,154 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 16:01:59,156 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 16:01:59,157 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 16:01:59,157 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 16:01:59,157 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 16:01:59,158 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 16:01:59,159 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 16:01:59,165 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 16:01:59,165 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 16:01:59,166 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 16:01:59,167 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 16:01:59,167 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 16:01:59,174 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 16:01:59,174 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 16:01:59,175 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 16:01:59,178 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 16:01:59,180 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 16:01:59,180 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 16:01:59,202 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 16:01:59,202 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 16:01:59,203 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 16:01:59,204 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 16:01:59,205 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 16:01:59,205 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 16:01:59,206 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 16:01:59,206 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 16:01:59,207 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 16:01:59,207 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 16:01:59,207 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 16:01:59,240 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 16:01:59,252 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 16:01:59,256 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 16:01:59,257 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 16:01:59,261 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 16:01:59,265 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 16:01:59,267 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 16:01:59,268 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 16:01:59,268 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 16:01:59,272 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 16:01:59,277 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 16:01:59,277 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 16:01:59,279 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 16:01:59,283 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 16:01:59,294 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 16:01:59,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 16:01:59,474 INFO L208 MainTranslator]: Completed translation [2022-12-14 16:01:59,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:01:59 WrapperNode [2022-12-14 16:01:59,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 16:01:59,476 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 16:01:59,476 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 16:01:59,476 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 16:01:59,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:01:59" (1/1) ... [2022-12-14 16:01:59,531 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:01:59" (1/1) ... [2022-12-14 16:01:59,575 INFO L138 Inliner]: procedures = 691, calls = 2655, calls flagged for inlining = 59, calls inlined = 6, statements flattened = 901 [2022-12-14 16:01:59,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 16:01:59,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 16:01:59,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 16:01:59,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 16:01:59,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:01:59" (1/1) ... [2022-12-14 16:01:59,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:01:59" (1/1) ... [2022-12-14 16:01:59,589 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:01:59" (1/1) ... [2022-12-14 16:01:59,590 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:01:59" (1/1) ... [2022-12-14 16:01:59,611 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:01:59" (1/1) ... [2022-12-14 16:01:59,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:01:59" (1/1) ... [2022-12-14 16:01:59,619 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:01:59" (1/1) ... [2022-12-14 16:01:59,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:01:59" (1/1) ... [2022-12-14 16:01:59,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 16:01:59,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 16:01:59,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 16:01:59,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 16:01:59,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:01:59" (1/1) ... [2022-12-14 16:01:59,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 16:01:59,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddad82b-5815-46a4-bd69-5549c3fe0a9a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:01:59,653 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddad82b-5815-46a4-bd69-5549c3fe0a9a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 16:01:59,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddad82b-5815-46a4-bd69-5549c3fe0a9a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 16:01:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-12-14 16:01:59,681 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-12-14 16:01:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 16:01:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-14 16:01:59,681 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-14 16:01:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 16:01:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 16:01:59,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 16:01:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 16:01:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 16:01:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2022-12-14 16:01:59,682 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2022-12-14 16:01:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 16:01:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-12-14 16:01:59,682 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-12-14 16:01:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member [2022-12-14 16:01:59,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member [2022-12-14 16:01:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 16:01:59,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 16:01:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-14 16:01:59,683 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-14 16:01:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-12-14 16:01:59,683 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-12-14 16:01:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 16:01:59,683 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 16:01:59,683 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-12-14 16:01:59,684 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-12-14 16:01:59,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 16:01:59,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 16:01:59,684 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2022-12-14 16:01:59,684 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2022-12-14 16:01:59,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 16:01:59,684 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-12-14 16:01:59,684 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-12-14 16:01:59,684 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-12-14 16:01:59,684 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-12-14 16:01:59,685 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded [2022-12-14 16:01:59,685 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded [2022-12-14 16:01:59,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 16:01:59,685 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_buf_equivalence [2022-12-14 16:01:59,685 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_buf_equivalence [2022-12-14 16:01:59,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 16:01:59,877 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 16:01:59,879 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 16:02:00,751 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 16:02:00,925 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 16:02:00,925 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 16:02:00,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:02:00 BoogieIcfgContainer [2022-12-14 16:02:00,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 16:02:00,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 16:02:00,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 16:02:00,934 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 16:02:00,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:01:57" (1/3) ... [2022-12-14 16:02:00,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64401d1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:02:00, skipping insertion in model container [2022-12-14 16:02:00,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:01:59" (2/3) ... [2022-12-14 16:02:00,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64401d1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:02:00, skipping insertion in model container [2022-12-14 16:02:00,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:02:00" (3/3) ... [2022-12-14 16:02:00,936 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_from_whole_buffer_harness.i [2022-12-14 16:02:00,955 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 16:02:00,955 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 16:02:01,004 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 16:02:01,010 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;@2d5e2e33, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 16:02:01,010 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 16:02:01,018 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 70 states have (on average 1.1714285714285715) internal successors, (82), 72 states have internal predecessors, (82), 53 states have call successors, (53), 15 states have call predecessors, (53), 15 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2022-12-14 16:02:01,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-12-14 16:02:01,026 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:02:01,027 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 16:02:01,027 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 16:02:01,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:02:01,031 INFO L85 PathProgramCache]: Analyzing trace with hash -789802953, now seen corresponding path program 1 times [2022-12-14 16:02:01,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:02:01,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039910089] [2022-12-14 16:02:01,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:02:01,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:02:04,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:02:12,033 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2022-12-14 16:02:12,033 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:02:12,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039910089] [2022-12-14 16:02:12,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039910089] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 16:02:12,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117898294] [2022-12-14 16:02:12,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:02:12,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:02:12,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddad82b-5815-46a4-bd69-5549c3fe0a9a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:02:12,035 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddad82b-5815-46a4-bd69-5549c3fe0a9a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 16:02:12,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddad82b-5815-46a4-bd69-5549c3fe0a9a/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 16:02:12,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:02:12,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 2936 conjuncts, 217 conjunts are in the unsatisfiable core [2022-12-14 16:02:12,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 16:02:12,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-14 16:02:13,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 16:02:13,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 16:02:16,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2022-12-14 16:02:16,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-12-14 16:02:20,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 16:02:20,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 16:02:24,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2022-12-14 16:02:24,687 WARN L859 $PredicateComparison]: unable to prove that (and (< 0 |c_#StackHeapBarrier|) (exists ((v_arrayElimArr_1 (Array Int Int))) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_ensure_byte_buf_has_allocated_buffer_member_#in~buf.base| v_arrayElimArr_1)) (not (= (select v_arrayElimArr_1 (+ 8 |c_ensure_byte_buf_has_allocated_buffer_member_#in~buf.offset|)) 0)))) (exists ((v_ArrVal_172 (Array Int Int))) (= (store |c_old(#memory_int)| |c_ensure_byte_buf_has_allocated_buffer_member_#in~buf.base| v_ArrVal_172) |c_#memory_int|))) is different from true [2022-12-14 16:02:24,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 19 [2022-12-14 16:02:24,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 34 [2022-12-14 16:02:35,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 26 [2022-12-14 16:02:35,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-12-14 16:02:35,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 12 [2022-12-14 16:02:35,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 24 [2022-12-14 16:02:36,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:36,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:36,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:36,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 16:02:36,007 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 16:02:36,037 INFO L321 Elim1Store]: treesize reduction 56, result has 39.8 percent of original size [2022-12-14 16:02:36,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 72 treesize of output 92 [2022-12-14 16:02:46,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 146 treesize of output 130 [2022-12-14 16:02:47,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 114 [2022-12-14 16:02:47,507 INFO L321 Elim1Store]: treesize reduction 32, result has 84.7 percent of original size [2022-12-14 16:02:47,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 3 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 52 case distinctions, treesize of input 267 treesize of output 331 [2022-12-14 16:02:48,958 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 33 proven. 75 refuted. 0 times theorem prover too weak. 30 trivial. 1 not checked. [2022-12-14 16:02:48,958 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 16:02:51,038 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 76449 disjunctions. This might take some time... [2022-12-14 16:09:37,428 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 76449 disjunctions.