./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87917cde-a27d-40da-9720-29a697eb4663/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87917cde-a27d-40da-9720-29a697eb4663/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_87917cde-a27d-40da-9720-29a697eb4663/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87917cde-a27d-40da-9720-29a697eb4663/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87917cde-a27d-40da-9720-29a697eb4663/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_87917cde-a27d-40da-9720-29a697eb4663/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 624e111eb11fc6cb53be17248f0e61e18bd8cc958dfb511134351ecf4f085f78 --- 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 09:53:50,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:53:50,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:53:50,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:53:50,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:53:50,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:53:50,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:53:50,971 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:53:50,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:53:50,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:53:50,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:53:50,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:53:50,974 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:53:50,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:53:50,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:53:50,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:53:50,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:53:50,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:53:50,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:53:50,979 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:53:50,980 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:53:50,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:53:50,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:53:50,982 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:53:50,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:53:50,985 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:53:50,985 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:53:50,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:53:50,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:53:50,986 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:53:50,986 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:53:50,987 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:53:50,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:53:50,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:53:50,988 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:53:50,989 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:53:50,989 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:53:50,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:53:50,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:53:50,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:53:50,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:53:50,991 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87917cde-a27d-40da-9720-29a697eb4663/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 09:53:51,005 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:53:51,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:53:51,005 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:53:51,005 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:53:51,006 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:53:51,006 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:53:51,006 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:53:51,006 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:53:51,006 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:53:51,006 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:53:51,006 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:53:51,006 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:53:51,006 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:53:51,007 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:53:51,007 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:53:51,007 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:53:51,007 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:53:51,007 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:53:51,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:53:51,008 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:53:51,008 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:53:51,008 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:53:51,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:53:51,008 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:53:51,008 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:53:51,008 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:53:51,008 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:53:51,008 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:53:51,008 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:53:51,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:53:51,009 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:53:51,009 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:53:51,009 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:53:51,009 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:53:51,009 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:53:51,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:53:51,009 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:53:51,009 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:53:51,009 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_87917cde-a27d-40da-9720-29a697eb4663/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87917cde-a27d-40da-9720-29a697eb4663/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 624e111eb11fc6cb53be17248f0e61e18bd8cc958dfb511134351ecf4f085f78 [2022-12-14 09:53:51,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:53:51,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:53:51,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:53:51,199 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:53:51,199 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:53:51,200 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87917cde-a27d-40da-9720-29a697eb4663/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2022-12-14 09:53:53,679 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:53:53,997 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:53:53,998 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87917cde-a27d-40da-9720-29a697eb4663/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2022-12-14 09:53:54,016 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87917cde-a27d-40da-9720-29a697eb4663/bin/utaipan-gh47qXpMRh/data/3137427ed/42891f735ce04060ab22498ea380fa59/FLAG81bd4efd9 [2022-12-14 09:53:54,240 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87917cde-a27d-40da-9720-29a697eb4663/bin/utaipan-gh47qXpMRh/data/3137427ed/42891f735ce04060ab22498ea380fa59 [2022-12-14 09:53:54,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:53:54,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:53:54,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:53:54,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:53:54,249 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:53:54,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:53:54" (1/1) ... [2022-12-14 09:53:54,251 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d331f9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:53:54, skipping insertion in model container [2022-12-14 09:53:54,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:53:54" (1/1) ... [2022-12-14 09:53:54,260 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:53:54,366 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:53:54,546 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_87917cde-a27d-40da-9720-29a697eb4663/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4495,4508] [2022-12-14 09:53:54,551 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_87917cde-a27d-40da-9720-29a697eb4663/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4555,4568] [2022-12-14 09:53:55,213 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 09:53:55,218 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:53:55,218 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:53:55,219 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:53:55,219 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:53:55,220 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:53:55,222 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 09:53:55,230 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:53:55,231 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 09:53:55,231 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:53:55,232 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:53:55,233 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:53:55,310 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 09:53:55,310 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 09:53:55,311 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 09:53:55,314 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 09:53:55,315 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 09:53:55,316 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 09:53:55,555 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 09:53:55,556 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 09:53:55,557 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 09:53:55,558 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 09:53:55,559 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 09:53:55,560 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 09:53:55,560 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 09:53:55,561 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 09:53:55,561 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 09:53:55,562 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 09:53:55,562 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 09:53:55,685 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 09:53:55,708 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 09:53:55,715 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 09:53:55,718 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 09:53:55,725 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 09:53:55,733 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 09:53:55,737 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 09:53:55,737 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 09:53:55,738 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 09:53:55,747 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 09:53:55,753 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:53:55,753 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:53:55,757 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 09:53:55,763 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 09:53:55,796 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 09:53:55,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:53:55,829 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:53:55,838 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_87917cde-a27d-40da-9720-29a697eb4663/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4495,4508] [2022-12-14 09:53:55,838 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_87917cde-a27d-40da-9720-29a697eb4663/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4555,4568] [2022-12-14 09:53:55,860 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 09:53:55,862 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:53:55,862 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:53:55,862 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:53:55,862 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:53:55,863 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:53:55,864 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 09:53:55,867 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:53:55,868 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 09:53:55,868 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:53:55,868 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:53:55,869 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:53:55,873 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 09:53:55,873 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 09:53:55,874 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 09:53:55,876 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 09:53:55,877 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 09:53:55,877 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 09:53:55,890 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 09:53:55,891 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 09:53:55,892 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 09:53:55,892 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 09:53:55,893 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 09:53:55,893 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 09:53:55,894 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 09:53:55,894 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 09:53:55,894 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 09:53:55,895 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 09:53:55,895 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 09:53:55,908 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 09:53:55,918 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 09:53:55,922 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 09:53:55,935 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 09:53:55,939 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 09:53:55,943 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 09:53:55,946 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 09:53:55,947 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 09:53:55,947 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 09:53:55,951 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 09:53:55,955 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:53:55,956 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 09:53:55,958 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 09:53:55,962 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 09:53:55,977 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 09:53:55,979 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:53:56,160 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:53:56,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:53:56 WrapperNode [2022-12-14 09:53:56,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:53:56,162 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:53:56,162 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:53:56,162 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:53:56,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:53:56" (1/1) ... [2022-12-14 09:53:56,230 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:53:56" (1/1) ... [2022-12-14 09:53:56,285 INFO L138 Inliner]: procedures = 691, calls = 2618, calls flagged for inlining = 62, calls inlined = 9, statements flattened = 855 [2022-12-14 09:53:56,285 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:53:56,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:53:56,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:53:56,286 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:53:56,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:53:56" (1/1) ... [2022-12-14 09:53:56,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:53:56" (1/1) ... [2022-12-14 09:53:56,303 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:53:56" (1/1) ... [2022-12-14 09:53:56,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:53:56" (1/1) ... [2022-12-14 09:53:56,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:53:56" (1/1) ... [2022-12-14 09:53:56,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:53:56" (1/1) ... [2022-12-14 09:53:56,342 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:53:56" (1/1) ... [2022-12-14 09:53:56,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:53:56" (1/1) ... [2022-12-14 09:53:56,364 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:53:56,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:53:56,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:53:56,365 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:53:56,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:53:56" (1/1) ... [2022-12-14 09:53:56,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:53:56,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87917cde-a27d-40da-9720-29a697eb4663/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:53:56,392 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87917cde-a27d-40da-9720-29a697eb4663/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:53:56,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87917cde-a27d-40da-9720-29a697eb4663/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:53:56,426 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-12-14 09:53:56,427 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-12-14 09:53:56,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:53:56,427 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-14 09:53:56,427 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-14 09:53:56,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 09:53:56,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 09:53:56,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 09:53:56,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 09:53:56,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:53:56,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 09:53:56,428 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-12-14 09:53:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-12-14 09:53:56,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:53:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:53:56,428 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-14 09:53:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-14 09:53:56,428 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-12-14 09:53:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-12-14 09:53:56,428 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 09:53:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 09:53:56,429 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-12-14 09:53:56,429 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-12-14 09:53:56,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 09:53:56,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 09:53:56,429 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2022-12-14 09:53:56,429 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2022-12-14 09:53:56,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 09:53:56,429 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-12-14 09:53:56,429 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-12-14 09:53:56,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 09:53:56,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:53:56,625 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:53:56,626 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:53:57,414 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:53:57,599 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:53:57,599 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 09:53:57,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:53:57 BoogieIcfgContainer [2022-12-14 09:53:57,602 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:53:57,604 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:53:57,604 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:53:57,606 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:53:57,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:53:54" (1/3) ... [2022-12-14 09:53:57,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f397c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:53:57, skipping insertion in model container [2022-12-14 09:53:57,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:53:56" (2/3) ... [2022-12-14 09:53:57,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f397c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:53:57, skipping insertion in model container [2022-12-14 09:53:57,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:53:57" (3/3) ... [2022-12-14 09:53:57,608 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_u8_harness.i [2022-12-14 09:53:57,621 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:53:57,621 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 09:53:57,656 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:53:57,661 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;@a017db5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:53:57,661 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 09:53:57,664 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 52 states have (on average 1.1923076923076923) internal successors, (62), 53 states have internal predecessors, (62), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-12-14 09:53:57,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-12-14 09:53:57,671 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:53:57,671 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:53:57,672 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:53:57,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:53:57,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1255648649, now seen corresponding path program 1 times [2022-12-14 09:53:57,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:53:57,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985908228] [2022-12-14 09:53:57,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:53:57,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:53:59,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:54:08,953 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-14 09:54:08,954 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:54:08,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985908228] [2022-12-14 09:54:08,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985908228] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:54:08,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644910654] [2022-12-14 09:54:08,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:54:08,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:54:08,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87917cde-a27d-40da-9720-29a697eb4663/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:54:08,956 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87917cde-a27d-40da-9720-29a697eb4663/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:54:08,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87917cde-a27d-40da-9720-29a697eb4663/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 09:54:09,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:54:09,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 2582 conjuncts, 145 conjunts are in the unsatisfiable core [2022-12-14 09:54:09,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:54:09,796 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 09:54:09,803 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 09:54:12,357 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 09:54:12,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2022-12-14 09:54:12,374 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 20 treesize of output 19 [2022-12-14 09:54:30,964 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 12 proven. 26 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 09:54:30,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:54:32,866 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 76449 disjunctions. This might take some time... [2022-12-14 10:00:51,098 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 76449 disjunctions.