./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_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_656f7278-b099-421d-bfe6-f891a69221aa/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_656f7278-b099-421d-bfe6-f891a69221aa/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_656f7278-b099-421d-bfe6-f891a69221aa/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_656f7278-b099-421d-bfe6-f891a69221aa/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_656f7278-b099-421d-bfe6-f891a69221aa/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_656f7278-b099-421d-bfe6-f891a69221aa/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 aad159acc9cbece9fe1ce64619aff83e5e3477bbd84af6f399f8d36d8b5384a2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 06:03:29,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:03:29,262 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:03:29,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:03:29,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:03:29,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:03:29,277 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:03:29,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:03:29,279 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:03:29,280 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:03:29,280 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:03:29,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:03:29,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:03:29,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:03:29,283 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:03:29,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:03:29,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:03:29,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:03:29,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:03:29,287 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:03:29,288 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:03:29,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:03:29,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:03:29,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:03:29,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:03:29,296 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:03:29,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:03:29,297 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:03:29,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:03:29,299 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:03:29,299 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:03:29,300 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:03:29,301 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:03:29,302 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:03:29,303 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:03:29,304 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:03:29,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:03:29,304 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:03:29,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:03:29,306 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:03:29,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:03:29,307 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_656f7278-b099-421d-bfe6-f891a69221aa/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 06:03:29,333 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:03:29,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:03:29,333 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:03:29,333 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:03:29,334 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:03:29,334 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:03:29,335 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:03:29,335 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:03:29,335 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:03:29,335 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:03:29,335 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:03:29,336 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:03:29,336 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:03:29,336 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:03:29,336 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:03:29,336 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:03:29,337 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:03:29,337 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:03:29,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:03:29,338 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:03:29,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:03:29,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:03:29,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:03:29,338 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:03:29,338 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:03:29,339 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:03:29,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:03:29,339 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:03:29,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:03:29,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:03:29,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:03:29,340 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:03:29,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:03:29,340 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:03:29,340 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:03:29,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:03:29,341 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:03:29,341 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:03:29,341 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_656f7278-b099-421d-bfe6-f891a69221aa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_656f7278-b099-421d-bfe6-f891a69221aa/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aad159acc9cbece9fe1ce64619aff83e5e3477bbd84af6f399f8d36d8b5384a2 [2022-12-14 06:03:29,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:03:29,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:03:29,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:03:29,578 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:03:29,578 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:03:29,579 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_656f7278-b099-421d-bfe6-f891a69221aa/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i [2022-12-14 06:03:32,139 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:03:32,445 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:03:32,445 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_656f7278-b099-421d-bfe6-f891a69221aa/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i [2022-12-14 06:03:32,465 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_656f7278-b099-421d-bfe6-f891a69221aa/bin/utaipan-gh47qXpMRh/data/8a710fa61/b9438edbec3b4450b3bdcbd7f298d0b6/FLAGfb1c3d551 [2022-12-14 06:03:32,477 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_656f7278-b099-421d-bfe6-f891a69221aa/bin/utaipan-gh47qXpMRh/data/8a710fa61/b9438edbec3b4450b3bdcbd7f298d0b6 [2022-12-14 06:03:32,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:03:32,480 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:03:32,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:03:32,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:03:32,484 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:03:32,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:03:32" (1/1) ... [2022-12-14 06:03:32,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ee416cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:32, skipping insertion in model container [2022-12-14 06:03:32,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:03:32" (1/1) ... [2022-12-14 06:03:32,491 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:03:32,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:03:32,754 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_656f7278-b099-421d-bfe6-f891a69221aa/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4493,4506] [2022-12-14 06:03:32,760 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_656f7278-b099-421d-bfe6-f891a69221aa/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4553,4566] [2022-12-14 06:03:33,621 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:03:33,625 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:03:33,625 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:03:33,626 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:03:33,626 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:03:33,627 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:03:33,629 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:03:33,637 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:03:33,637 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:03:33,637 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:03:33,639 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:03:33,639 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:03:33,720 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 06:03:33,720 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 06:03:33,721 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 06:03:33,725 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 06:03:33,727 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 06:03:33,728 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 06:03:33,976 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 06:03:33,977 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 06:03:33,978 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 06:03:33,979 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 06:03:33,980 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 06:03:33,982 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 06:03:33,982 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 06:03:33,983 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 06:03:33,983 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 06:03:33,984 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 06:03:33,984 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 06:03:34,142 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 06:03:34,169 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:03:34,176 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:03:34,179 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 06:03:34,189 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 06:03:34,198 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:03:34,203 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:03:34,203 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:03:34,204 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:03:34,214 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 06:03:34,221 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:03:34,221 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:03:34,225 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:03:34,232 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:03:34,278 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:03:34,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:03:34,326 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:03:34,336 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_656f7278-b099-421d-bfe6-f891a69221aa/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4493,4506] [2022-12-14 06:03:34,336 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_656f7278-b099-421d-bfe6-f891a69221aa/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4553,4566] [2022-12-14 06:03:34,357 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:03:34,358 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:03:34,358 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:03:34,358 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:03:34,359 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:03:34,359 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:03:34,360 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:03:34,363 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:03:34,363 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:03:34,363 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:03:34,364 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:03:34,364 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:03:34,368 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 06:03:34,368 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 06:03:34,369 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 06:03:34,371 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 06:03:34,372 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 06:03:34,372 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 06:03:34,384 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 06:03:34,385 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 06:03:34,385 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 06:03:34,386 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 06:03:34,386 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 06:03:34,387 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 06:03:34,387 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 06:03:34,387 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 06:03:34,388 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 06:03:34,388 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 06:03:34,388 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 06:03:34,401 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 06:03:34,411 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:03:34,414 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:03:34,416 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 06:03:34,420 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 06:03:34,424 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:03:34,426 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:03:34,427 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:03:34,427 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:03:34,432 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 06:03:34,448 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:03:34,448 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 06:03:34,450 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:03:34,454 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 06:03:34,464 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:03:34,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:03:34,646 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:03:34,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:34 WrapperNode [2022-12-14 06:03:34,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:03:34,648 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:03:34,648 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:03:34,648 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:03:34,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:34" (1/1) ... [2022-12-14 06:03:34,727 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:34" (1/1) ... [2022-12-14 06:03:34,796 INFO L138 Inliner]: procedures = 691, calls = 2642, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 858 [2022-12-14 06:03:34,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:03:34,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:03:34,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:03:34,798 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:03:34,807 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:34" (1/1) ... [2022-12-14 06:03:34,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:34" (1/1) ... [2022-12-14 06:03:34,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:34" (1/1) ... [2022-12-14 06:03:34,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:34" (1/1) ... [2022-12-14 06:03:34,853 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:34" (1/1) ... [2022-12-14 06:03:34,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:34" (1/1) ... [2022-12-14 06:03:34,869 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:34" (1/1) ... [2022-12-14 06:03:34,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:34" (1/1) ... [2022-12-14 06:03:34,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:03:34,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:03:34,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:03:34,889 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:03:34,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:34" (1/1) ... [2022-12-14 06:03:34,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:03:34,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_656f7278-b099-421d-bfe6-f891a69221aa/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:03:34,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_656f7278-b099-421d-bfe6-f891a69221aa/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:03:34,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_656f7278-b099-421d-bfe6-f891a69221aa/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:03:34,951 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-12-14 06:03:34,951 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-12-14 06:03:34,951 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-12-14 06:03:34,951 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-12-14 06:03:34,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 06:03:34,951 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-14 06:03:34,952 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-14 06:03:34,952 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_append [2022-12-14 06:03:34,952 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_append [2022-12-14 06:03:34,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 06:03:34,952 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-12-14 06:03:34,952 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-12-14 06:03:34,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 06:03:34,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 06:03:34,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 06:03:34,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:03:34,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 06:03:34,953 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-12-14 06:03:34,953 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-12-14 06:03:34,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:03:34,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:03:34,961 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-14 06:03:34,961 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-14 06:03:34,961 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 06:03:34,961 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 06:03:34,961 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-12-14 06:03:34,961 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-12-14 06:03:34,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 06:03:34,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 06:03:34,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 06:03:34,962 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-12-14 06:03:34,962 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-12-14 06:03:34,962 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2022-12-14 06:03:34,962 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2022-12-14 06:03:34,962 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-12-14 06:03:34,962 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-12-14 06:03:34,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 06:03:34,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:03:35,179 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:03:35,181 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:03:36,205 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:03:36,406 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:03:36,407 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 06:03:36,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:03:36 BoogieIcfgContainer [2022-12-14 06:03:36,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:03:36,410 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:03:36,410 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:03:36,412 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:03:36,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:03:32" (1/3) ... [2022-12-14 06:03:36,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31cf0443 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:03:36, skipping insertion in model container [2022-12-14 06:03:36,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:34" (2/3) ... [2022-12-14 06:03:36,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31cf0443 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:03:36, skipping insertion in model container [2022-12-14 06:03:36,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:03:36" (3/3) ... [2022-12-14 06:03:36,414 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_harness.i [2022-12-14 06:03:36,428 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:03:36,428 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 06:03:36,464 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:03:36,469 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;@ccef330, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:03:36,469 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 06:03:36,473 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 61 states have (on average 1.1475409836065573) internal successors, (70), 62 states have internal predecessors, (70), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-12-14 06:03:36,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-12-14 06:03:36,480 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:03:36,480 INFO L195 NwaCegarLoop]: trace histogram [7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:03:36,481 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:03:36,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:03:36,484 INFO L85 PathProgramCache]: Analyzing trace with hash 408760015, now seen corresponding path program 1 times [2022-12-14 06:03:36,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:03:36,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442884998] [2022-12-14 06:03:36,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:03:36,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:03:37,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:03:40,872 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-12-14 06:03:40,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:03:40,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442884998] [2022-12-14 06:03:40,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442884998] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 06:03:40,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492328821] [2022-12-14 06:03:40,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:03:40,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:03:40,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_656f7278-b099-421d-bfe6-f891a69221aa/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:03:40,874 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_656f7278-b099-421d-bfe6-f891a69221aa/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:03:40,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_656f7278-b099-421d-bfe6-f891a69221aa/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 06:03:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:03:41,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 2603 conjuncts, 73 conjunts are in the unsatisfiable core [2022-12-14 06:03:41,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:03:41,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 06:03:41,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 06:03:43,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-12-14 06:03:43,581 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 9 proven. 31 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 06:03:43,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:03:44,755 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 14202 disjunctions. This might take some time... [2022-12-14 06:03:55,493 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 13413 disjunctions.