./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 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_48089c81-affc-4dd4-9b9a-a22b36d78a84/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48089c81-affc-4dd4-9b9a-a22b36d78a84/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_48089c81-affc-4dd4-9b9a-a22b36d78a84/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48089c81-affc-4dd4-9b9a-a22b36d78a84/bin/utaipan-gh47qXpMRh/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_48089c81-affc-4dd4-9b9a-a22b36d78a84/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_48089c81-affc-4dd4-9b9a-a22b36d78a84/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 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-2329fc7 [2022-12-14 12:52:43,435 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:52:43,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:52:43,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:52:43,449 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:52:43,449 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:52:43,450 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:52:43,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:52:43,452 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:52:43,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:52:43,453 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:52:43,454 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:52:43,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:52:43,455 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:52:43,456 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:52:43,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:52:43,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:52:43,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:52:43,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:52:43,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:52:43,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:52:43,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:52:43,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:52:43,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:52:43,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:52:43,465 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:52:43,465 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:52:43,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:52:43,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:52:43,467 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:52:43,467 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:52:43,467 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:52:43,468 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:52:43,468 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:52:43,469 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:52:43,469 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:52:43,469 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:52:43,470 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:52:43,470 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:52:43,470 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:52:43,471 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:52:43,471 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48089c81-affc-4dd4-9b9a-a22b36d78a84/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 12:52:43,493 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:52:43,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:52:43,493 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:52:43,493 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:52:43,494 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:52:43,494 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:52:43,494 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:52:43,495 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:52:43,495 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:52:43,495 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 12:52:43,495 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:52:43,495 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:52:43,495 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 12:52:43,496 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 12:52:43,496 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:52:43,496 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 12:52:43,496 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 12:52:43,496 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 12:52:43,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:52:43,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 12:52:43,497 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:52:43,497 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:52:43,497 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:52:43,498 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:52:43,498 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:52:43,498 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:52:43,498 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:52:43,498 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:52:43,498 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:52:43,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:52:43,499 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:52:43,499 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 12:52:43,499 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:52:43,499 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:52:43,499 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 12:52:43,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 12:52:43,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:52:43,500 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:52:43,500 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_48089c81-affc-4dd4-9b9a-a22b36d78a84/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48089c81-affc-4dd4-9b9a-a22b36d78a84/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c8e70dc7f77f825f3ef2e89303bbf356ceb3a21ef4dcf0b5c90667d3d62b0fd [2022-12-14 12:52:43,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:52:43,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:52:43,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:52:43,712 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:52:43,712 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:52:43,713 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48089c81-affc-4dd4-9b9a-a22b36d78a84/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i [2022-12-14 12:52:46,371 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:52:46,654 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:52:46,654 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48089c81-affc-4dd4-9b9a-a22b36d78a84/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i [2022-12-14 12:52:46,673 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48089c81-affc-4dd4-9b9a-a22b36d78a84/bin/utaipan-gh47qXpMRh/data/8ef4f0ace/9d9607a0a20949969f3d7898b5599bb0/FLAGffce43a4e [2022-12-14 12:52:46,683 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48089c81-affc-4dd4-9b9a-a22b36d78a84/bin/utaipan-gh47qXpMRh/data/8ef4f0ace/9d9607a0a20949969f3d7898b5599bb0 [2022-12-14 12:52:46,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:52:46,686 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:52:46,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:52:46,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:52:46,690 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:52:46,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:52:46" (1/1) ... [2022-12-14 12:52:46,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@127cf1af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:52:46, skipping insertion in model container [2022-12-14 12:52:46,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:52:46" (1/1) ... [2022-12-14 12:52:46,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:52:46,752 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:52:46,926 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_48089c81-affc-4dd4-9b9a-a22b36d78a84/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4501,4514] [2022-12-14 12:52:46,933 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_48089c81-affc-4dd4-9b9a-a22b36d78a84/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4561,4574] [2022-12-14 12:52:47,600 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:52:47,600 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:52:47,601 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:52:47,601 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:52:47,602 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:52:47,622 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:52:47,622 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:52:47,624 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:52:47,624 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:52:47,678 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 12:52:47,679 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 12:52:47,679 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 12:52:47,684 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 12:52:47,685 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 12:52:47,686 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 12:52:47,906 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 12:52:47,907 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 12:52:47,908 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 12:52:47,909 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 12:52:47,910 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 12:52:47,910 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 12:52:47,911 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 12:52:47,911 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 12:52:47,912 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 12:52:47,912 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 12:52:47,913 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 12:52:48,031 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 12:52:48,046 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 12:52:48,058 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 12:52:48,065 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 12:52:48,090 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:52:48,091 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:52:48,129 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 12:52:48,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:52:48,165 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:52:48,175 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_48089c81-affc-4dd4-9b9a-a22b36d78a84/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4501,4514] [2022-12-14 12:52:48,175 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_48089c81-affc-4dd4-9b9a-a22b36d78a84/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4561,4574] [2022-12-14 12:52:48,197 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:52:48,198 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:52:48,198 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:52:48,198 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:52:48,199 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:52:48,203 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:52:48,216 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:52:48,217 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:52:48,217 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:52:48,225 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 12:52:48,225 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 12:52:48,226 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 12:52:48,229 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 12:52:48,230 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 12:52:48,231 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 12:52:48,252 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 12:52:48,253 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 12:52:48,254 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 12:52:48,254 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 12:52:48,255 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 12:52:48,256 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 12:52:48,256 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 12:52:48,257 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 12:52:48,257 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 12:52:48,258 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 12:52:48,258 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 12:52:48,275 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 12:52:48,285 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 12:52:48,293 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 12:52:48,298 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 12:52:48,316 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:52:48,316 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:52:48,335 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 12:52:48,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:52:48,472 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:52:48,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:52:48 WrapperNode [2022-12-14 12:52:48,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:52:48,473 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:52:48,473 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:52:48,473 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:52:48,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:52:48" (1/1) ... [2022-12-14 12:52:48,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:52:48" (1/1) ... [2022-12-14 12:52:48,577 INFO L138 Inliner]: procedures = 691, calls = 2650, calls flagged for inlining = 65, calls inlined = 11, statements flattened = 933 [2022-12-14 12:52:48,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:52:48,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:52:48,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:52:48,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:52:48,586 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:52:48" (1/1) ... [2022-12-14 12:52:48,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:52:48" (1/1) ... [2022-12-14 12:52:48,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:52:48" (1/1) ... [2022-12-14 12:52:48,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:52:48" (1/1) ... [2022-12-14 12:52:48,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:52:48" (1/1) ... [2022-12-14 12:52:48,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:52:48" (1/1) ... [2022-12-14 12:52:48,620 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:52:48" (1/1) ... [2022-12-14 12:52:48,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:52:48" (1/1) ... [2022-12-14 12:52:48,630 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:52:48,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:52:48,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:52:48,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:52:48,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:52:48" (1/1) ... [2022-12-14 12:52:48,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:52:48,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48089c81-affc-4dd4-9b9a-a22b36d78a84/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:52:48,655 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48089c81-affc-4dd4-9b9a-a22b36d78a84/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:52:48,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48089c81-affc-4dd4-9b9a-a22b36d78a84/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:52:48,688 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-12-14 12:52:48,689 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-12-14 12:52:48,689 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-12-14 12:52:48,689 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-12-14 12:52:48,689 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 12:52:48,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 12:52:48,689 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-14 12:52:48,689 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-14 12:52:48,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 12:52:48,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 12:52:48,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 12:52:48,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 12:52:48,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:52:48,690 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2022-12-14 12:52:48,690 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2022-12-14 12:52:48,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 12:52:48,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:52:48,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:52:48,690 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-14 12:52:48,690 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-14 12:52:48,690 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-12-14 12:52:48,690 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-12-14 12:52:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 12:52:48,691 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 12:52:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 12:52:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 12:52:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2022-12-14 12:52:48,691 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2022-12-14 12:52:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 12:52:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-12-14 12:52:48,691 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-12-14 12:52:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-12-14 12:52:48,691 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-12-14 12:52:48,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 12:52:48,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 12:52:48,919 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:52:48,921 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:52:49,850 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:52:50,065 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:52:50,065 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 12:52:50,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:52:50 BoogieIcfgContainer [2022-12-14 12:52:50,067 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:52:50,068 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:52:50,069 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:52:50,071 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:52:50,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:52:46" (1/3) ... [2022-12-14 12:52:50,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24196a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:52:50, skipping insertion in model container [2022-12-14 12:52:50,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:52:48" (2/3) ... [2022-12-14 12:52:50,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24196a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:52:50, skipping insertion in model container [2022-12-14 12:52:50,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:52:50" (3/3) ... [2022-12-14 12:52:50,073 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_eq_byte_buf_harness.i [2022-12-14 12:52:50,086 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:52:50,087 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 12:52:50,123 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:52:50,127 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;@36dd1255, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:52:50,128 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 12:52:50,131 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) [2022-12-14 12:52:50,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 12:52:50,137 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:52:50,138 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] [2022-12-14 12:52:50,138 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:52:50,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:52:50,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1795829775, now seen corresponding path program 1 times [2022-12-14 12:52:50,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:52:50,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24400331] [2022-12-14 12:52:50,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:52:50,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:52:54,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:53:00,423 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-12-14 12:53:00,423 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:53:00,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24400331] [2022-12-14 12:53:00,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24400331] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:53:00,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1202945422] [2022-12-14 12:53:00,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:53:00,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:53:00,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48089c81-affc-4dd4-9b9a-a22b36d78a84/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:53:00,425 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48089c81-affc-4dd4-9b9a-a22b36d78a84/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:53:00,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48089c81-affc-4dd4-9b9a-a22b36d78a84/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 12:53:00,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:53:00,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 2738 conjuncts, 148 conjunts are in the unsatisfiable core [2022-12-14 12:53:00,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:53:00,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-14 12:53:01,222 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 12:53:01,230 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 12:53:02,178 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:53:02,181 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 12:53:02,182 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 [2022-12-14 12:53:02,189 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:53:02,192 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 12:53:02,193 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 [2022-12-14 12:53:02,875 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 [2022-12-14 12:53:03,202 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 [2022-12-14 12:53:03,213 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 [2022-12-14 12:53:03,822 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 [2022-12-14 12:53:03,827 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 [2022-12-14 12:53:03,903 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 [2022-12-14 12:53:07,261 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 20 proven. 53 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-14 12:53:07,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:53:08,141 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 14202 disjunctions. This might take some time... [2022-12-14 12:53:19,916 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 13413 disjunctions.