./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_212600ee-ba74-430d-af55-ce4d7b1a91cf/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212600ee-ba74-430d-af55-ce4d7b1a91cf/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212600ee-ba74-430d-af55-ce4d7b1a91cf/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212600ee-ba74-430d-af55-ce4d7b1a91cf/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212600ee-ba74-430d-af55-ce4d7b1a91cf/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212600ee-ba74-430d-af55-ce4d7b1a91cf/bin/utaipan-ByfvJB40ur --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 4c8e70dc7f77f825f3ef2e89303bbf356ceb3a21ef4dcf0b5c90667d3d62b0fd --- 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-38b53e6 [2022-11-25 23:31:19,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:31:19,947 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:31:19,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:31:19,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:31:19,980 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:31:19,981 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:31:19,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:31:19,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:31:19,998 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:31:19,999 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:31:20,002 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:31:20,002 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:31:20,005 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:31:20,008 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:31:20,009 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:31:20,010 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:31:20,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:31:20,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:31:20,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:31:20,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:31:20,022 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:31:20,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:31:20,026 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:31:20,037 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:31:20,037 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:31:20,037 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:31:20,038 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:31:20,039 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:31:20,040 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:31:20,040 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:31:20,041 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:31:20,042 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:31:20,042 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:31:20,043 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:31:20,044 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:31:20,044 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:31:20,045 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:31:20,045 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:31:20,046 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:31:20,050 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:31:20,052 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212600ee-ba74-430d-af55-ce4d7b1a91cf/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 23:31:20,096 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:31:20,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:31:20,097 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:31:20,097 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:31:20,098 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:31:20,098 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:31:20,098 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:31:20,099 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:31:20,099 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:31:20,099 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:31:20,100 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:31:20,100 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:31:20,100 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:31:20,101 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:31:20,101 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:31:20,101 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:31:20,101 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:31:20,101 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:31:20,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:31:20,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:31:20,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:31:20,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:31:20,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:31:20,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:31:20,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:31:20,104 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:31:20,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:31:20,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:31:20,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:31:20,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:31:20,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:31:20,105 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:31:20,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:31:20,106 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:31:20,106 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:31:20,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:31:20,106 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:31:20,106 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:31:20,107 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_212600ee-ba74-430d-af55-ce4d7b1a91cf/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212600ee-ba74-430d-af55-ce4d7b1a91cf/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c8e70dc7f77f825f3ef2e89303bbf356ceb3a21ef4dcf0b5c90667d3d62b0fd [2022-11-25 23:31:20,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:31:20,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:31:20,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:31:20,467 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:31:20,468 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:31:20,469 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212600ee-ba74-430d-af55-ce4d7b1a91cf/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i [2022-11-25 23:31:23,611 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:31:24,130 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:31:24,136 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212600ee-ba74-430d-af55-ce4d7b1a91cf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i [2022-11-25 23:31:24,185 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212600ee-ba74-430d-af55-ce4d7b1a91cf/bin/utaipan-ByfvJB40ur/data/a5e5bf677/bc10b7759e8540ae8146b04406ce0d13/FLAG88e23c2a0 [2022-11-25 23:31:24,205 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212600ee-ba74-430d-af55-ce4d7b1a91cf/bin/utaipan-ByfvJB40ur/data/a5e5bf677/bc10b7759e8540ae8146b04406ce0d13 [2022-11-25 23:31:24,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:31:24,213 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:31:24,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:31:24,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:31:24,223 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:31:24,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:31:24" (1/1) ... [2022-11-25 23:31:24,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@363800dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:24, skipping insertion in model container [2022-11-25 23:31:24,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:31:24" (1/1) ... [2022-11-25 23:31:24,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:31:24,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:31:24,719 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_212600ee-ba74-430d-af55-ce4d7b1a91cf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4501,4514] [2022-11-25 23:31:24,729 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_212600ee-ba74-430d-af55-ce4d7b1a91cf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4561,4574] [2022-11-25 23:31:25,803 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:31:25,804 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:31:25,805 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:31:25,806 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:31:25,807 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:31:25,823 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:31:25,824 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:31:25,826 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:31:25,827 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:31:25,939 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 23:31:25,940 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 23:31:25,941 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 23:31:25,947 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 23:31:25,952 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 23:31:25,952 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 23:31:26,372 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 23:31:26,374 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 23:31:26,375 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 23:31:26,378 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 23:31:26,381 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 23:31:26,387 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 23:31:26,389 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 23:31:26,392 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 23:31:26,396 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 23:31:26,397 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 23:31:26,399 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 23:31:26,640 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-25 23:31:26,668 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 23:31:26,691 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-11-25 23:31:26,704 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 23:31:26,781 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:31:26,781 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:31:26,847 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 23:31:26,869 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:31:26,948 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:31:26,979 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_212600ee-ba74-430d-af55-ce4d7b1a91cf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4501,4514] [2022-11-25 23:31:27,027 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_212600ee-ba74-430d-af55-ce4d7b1a91cf/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4561,4574] [2022-11-25 23:31:27,086 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:31:27,087 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:31:27,088 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:31:27,089 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:31:27,090 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:31:27,105 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:31:27,105 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:31:27,107 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:31:27,107 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:31:27,119 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 23:31:27,119 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 23:31:27,120 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 23:31:27,124 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 23:31:27,128 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 23:31:27,129 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 23:31:27,163 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 23:31:27,164 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 23:31:27,165 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 23:31:27,166 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 23:31:27,166 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 23:31:27,168 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 23:31:27,168 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 23:31:27,169 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 23:31:27,169 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 23:31:27,170 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 23:31:27,173 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 23:31:27,212 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-25 23:31:27,230 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 23:31:27,251 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-11-25 23:31:27,262 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 23:31:27,292 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:31:27,292 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:31:27,331 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 23:31:27,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:31:27,556 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:31:27,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:27 WrapperNode [2022-11-25 23:31:27,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:31:27,559 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:31:27,559 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:31:27,559 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:31:27,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:27" (1/1) ... [2022-11-25 23:31:27,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:27" (1/1) ... [2022-11-25 23:31:27,784 INFO L138 Inliner]: procedures = 691, calls = 2650, calls flagged for inlining = 65, calls inlined = 11, statements flattened = 933 [2022-11-25 23:31:27,787 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:31:27,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:31:27,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:31:27,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:31:27,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:27" (1/1) ... [2022-11-25 23:31:27,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:27" (1/1) ... [2022-11-25 23:31:27,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:27" (1/1) ... [2022-11-25 23:31:27,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:27" (1/1) ... [2022-11-25 23:31:27,852 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:27" (1/1) ... [2022-11-25 23:31:27,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:27" (1/1) ... [2022-11-25 23:31:27,881 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:27" (1/1) ... [2022-11-25 23:31:27,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:27" (1/1) ... [2022-11-25 23:31:27,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:31:27,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:31:27,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:31:27,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:31:27,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:27" (1/1) ... [2022-11-25 23:31:27,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:31:27,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212600ee-ba74-430d-af55-ce4d7b1a91cf/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:31:27,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212600ee-ba74-430d-af55-ce4d7b1a91cf/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:31:27,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212600ee-ba74-430d-af55-ce4d7b1a91cf/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:31:27,998 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-11-25 23:31:27,998 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-11-25 23:31:27,998 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-11-25 23:31:27,998 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-11-25 23:31:27,999 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-25 23:31:27,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:31:28,000 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-25 23:31:28,000 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-25 23:31:28,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:31:28,000 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 23:31:28,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 23:31:28,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 23:31:28,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:31:28,001 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2022-11-25 23:31:28,001 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2022-11-25 23:31:28,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 23:31:28,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:31:28,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:31:28,002 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-25 23:31:28,003 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-25 23:31:28,003 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-25 23:31:28,003 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-25 23:31:28,003 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 23:31:28,003 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 23:31:28,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:31:28,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 23:31:28,004 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2022-11-25 23:31:28,004 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2022-11-25 23:31:28,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 23:31:28,004 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-25 23:31:28,004 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-25 23:31:28,005 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-25 23:31:28,005 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-25 23:31:28,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:31:28,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:31:28,413 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:31:28,417 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:31:29,948 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:31:30,302 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:31:30,302 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:31:30,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:31:30 BoogieIcfgContainer [2022-11-25 23:31:30,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:31:30,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:31:30,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:31:30,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:31:30,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:31:24" (1/3) ... [2022-11-25 23:31:30,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27f77022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:31:30, skipping insertion in model container [2022-11-25 23:31:30,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:31:27" (2/3) ... [2022-11-25 23:31:30,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27f77022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:31:30, skipping insertion in model container [2022-11-25 23:31:30,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:31:30" (3/3) ... [2022-11-25 23:31:30,321 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_eq_byte_buf_harness.i [2022-11-25 23:31:30,341 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:31:30,346 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 23:31:30,414 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:31:30,425 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;@730af369, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:31:30,425 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 23:31:30,430 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 62 states have (on average 1.1935483870967742) internal successors, (74), 63 states have internal predecessors, (74), 42 states have call successors, (42), 11 states have call predecessors, (42), 11 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-11-25 23:31:30,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-25 23:31:30,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:31:30,442 INFO L195 NwaCegarLoop]: trace histogram [9, 3, 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, 1, 1, 1, 1, 1] [2022-11-25 23:31:30,442 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:31:30,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:31:30,450 INFO L85 PathProgramCache]: Analyzing trace with hash 45101985, now seen corresponding path program 1 times [2022-11-25 23:31:30,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:31:30,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885431747] [2022-11-25 23:31:30,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:31:30,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:31:32,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:31:44,736 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-11-25 23:31:44,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:31:44,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885431747] [2022-11-25 23:31:44,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885431747] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:31:44,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355641599] [2022-11-25 23:31:44,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:31:44,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:31:44,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212600ee-ba74-430d-af55-ce4d7b1a91cf/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:31:44,747 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212600ee-ba74-430d-af55-ce4d7b1a91cf/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:31:44,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_212600ee-ba74-430d-af55-ce4d7b1a91cf/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:31:45,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:31:45,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 2738 conjuncts, 142 conjunts are in the unsatisfiable core [2022-11-25 23:31:45,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:31:45,560 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 [2022-11-25 23:31:45,900 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 [2022-11-25 23:31:45,913 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 [2022-11-25 23:31:47,312 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:31:47,317 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 23:31:47,317 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 1 case distinctions, treesize of input 17 treesize of output 7 [2022-11-25 23:31:47,329 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:31:47,332 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 23:31:47,333 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 1 case distinctions, treesize of input 17 treesize of output 7 [2022-11-25 23:31:48,307 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 16 treesize of output 18 [2022-11-25 23:31:48,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-25 23:31:48,912 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 16 treesize of output 18 [2022-11-25 23:31:49,820 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 8 treesize of output 4 [2022-11-25 23:31:49,827 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 9 treesize of output 5 [2022-11-25 23:31:49,958 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 20 treesize of output 8 [2022-11-25 23:31:54,647 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 20 proven. 53 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 23:31:54,647 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:31:55,990 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 14202 disjunctions. This might take some time... [2022-11-25 23:32:10,428 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 13413 disjunctions.