./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 5e519f3a 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_7a0f0dd0-8350-4970-9ff3-197cef6911fb/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a0f0dd0-8350-4970-9ff3-197cef6911fb/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a0f0dd0-8350-4970-9ff3-197cef6911fb/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a0f0dd0-8350-4970-9ff3-197cef6911fb/bin/utaipan-7li7fVZpFI/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_7a0f0dd0-8350-4970-9ff3-197cef6911fb/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a0f0dd0-8350-4970-9ff3-197cef6911fb/bin/utaipan-7li7fVZpFI --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-5e519f3 [2022-11-03 02:43:07,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:43:07,414 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:43:07,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:43:07,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:43:07,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:43:07,463 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:43:07,468 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:43:07,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:43:07,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:43:07,472 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:43:07,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:43:07,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:43:07,474 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:43:07,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:43:07,476 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:43:07,477 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:43:07,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:43:07,482 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:43:07,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:43:07,496 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:43:07,499 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:43:07,500 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:43:07,501 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:43:07,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:43:07,505 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:43:07,505 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:43:07,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:43:07,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:43:07,507 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:43:07,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:43:07,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:43:07,509 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:43:07,510 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:43:07,511 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:43:07,518 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:43:07,519 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:43:07,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:43:07,520 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:43:07,521 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:43:07,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:43:07,522 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a0f0dd0-8350-4970-9ff3-197cef6911fb/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:43:07,560 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:43:07,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:43:07,560 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:43:07,561 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:43:07,561 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:43:07,562 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:43:07,562 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:43:07,562 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:43:07,562 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:43:07,562 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:43:07,562 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:43:07,563 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:43:07,563 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:43:07,568 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:43:07,568 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:43:07,568 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:43:07,568 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:43:07,569 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:43:07,569 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:43:07,569 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:43:07,570 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:43:07,570 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:43:07,570 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:43:07,571 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:43:07,571 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:43:07,571 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:43:07,571 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:43:07,571 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:43:07,572 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:43:07,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:43:07,573 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:43:07,573 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:43:07,573 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:43:07,573 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:43:07,573 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:43:07,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:43:07,575 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:43:07,575 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:43:07,575 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_7a0f0dd0-8350-4970-9ff3-197cef6911fb/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a0f0dd0-8350-4970-9ff3-197cef6911fb/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c8e70dc7f77f825f3ef2e89303bbf356ceb3a21ef4dcf0b5c90667d3d62b0fd [2022-11-03 02:43:07,846 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:43:07,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:43:07,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:43:07,872 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:43:07,873 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:43:07,874 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a0f0dd0-8350-4970-9ff3-197cef6911fb/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i [2022-11-03 02:43:07,956 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a0f0dd0-8350-4970-9ff3-197cef6911fb/bin/utaipan-7li7fVZpFI/data/7e378bb68/83a939ef68954060883b8f5b76e5b9c0/FLAGc2f52012e [2022-11-03 02:43:08,723 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:43:08,724 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a0f0dd0-8350-4970-9ff3-197cef6911fb/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i [2022-11-03 02:43:08,755 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a0f0dd0-8350-4970-9ff3-197cef6911fb/bin/utaipan-7li7fVZpFI/data/7e378bb68/83a939ef68954060883b8f5b76e5b9c0/FLAGc2f52012e [2022-11-03 02:43:08,778 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a0f0dd0-8350-4970-9ff3-197cef6911fb/bin/utaipan-7li7fVZpFI/data/7e378bb68/83a939ef68954060883b8f5b76e5b9c0 [2022-11-03 02:43:08,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:43:08,784 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:43:08,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:43:08,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:43:08,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:43:08,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:43:08" (1/1) ... [2022-11-03 02:43:08,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ae5abe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:43:08, skipping insertion in model container [2022-11-03 02:43:08,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:43:08" (1/1) ... [2022-11-03 02:43:08,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:43:08,925 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:43:09,312 WARN L230 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_7a0f0dd0-8350-4970-9ff3-197cef6911fb/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4501,4514] [2022-11-03 02:43:09,324 WARN L230 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_7a0f0dd0-8350-4970-9ff3-197cef6911fb/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4561,4574] [2022-11-03 02:43:10,307 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:43:10,308 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:43:10,308 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:43:10,309 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:43:10,310 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:43:10,325 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:43:10,326 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:43:10,328 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:43:10,328 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:43:10,821 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-03 02:43:10,823 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-03 02:43:10,824 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-03 02:43:10,826 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-03 02:43:10,832 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-03 02:43:10,835 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-03 02:43:10,836 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-03 02:43:10,838 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-03 02:43:10,841 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-03 02:43:10,841 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-03 02:43:11,024 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-03 02:43:11,188 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:43:11,189 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:43:11,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:43:11,310 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:43:11,328 WARN L230 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_7a0f0dd0-8350-4970-9ff3-197cef6911fb/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4501,4514] [2022-11-03 02:43:11,328 WARN L230 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_7a0f0dd0-8350-4970-9ff3-197cef6911fb/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4561,4574] [2022-11-03 02:43:11,362 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:43:11,363 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:43:11,363 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:43:11,364 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:43:11,365 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:43:11,371 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:43:11,372 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:43:11,373 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:43:11,374 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:43:11,405 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-03 02:43:11,406 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-03 02:43:11,407 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-03 02:43:11,408 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-03 02:43:11,409 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-03 02:43:11,409 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-03 02:43:11,410 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-03 02:43:11,410 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-03 02:43:11,411 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-03 02:43:11,411 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-03 02:43:11,433 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-03 02:43:11,526 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:43:11,527 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:43:11,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:43:11,856 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:43:11,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:43:11 WrapperNode [2022-11-03 02:43:11,857 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:43:11,858 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:43:11,858 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:43:11,858 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:43:11,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:43:11" (1/1) ... [2022-11-03 02:43:11,982 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:43:11" (1/1) ... [2022-11-03 02:43:12,065 INFO L138 Inliner]: procedures = 691, calls = 2651, calls flagged for inlining = 65, calls inlined = 11, statements flattened = 934 [2022-11-03 02:43:12,066 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:43:12,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:43:12,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:43:12,067 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:43:12,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:43:11" (1/1) ... [2022-11-03 02:43:12,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:43:11" (1/1) ... [2022-11-03 02:43:12,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:43:11" (1/1) ... [2022-11-03 02:43:12,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:43:11" (1/1) ... [2022-11-03 02:43:12,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:43:11" (1/1) ... [2022-11-03 02:43:12,123 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:43:11" (1/1) ... [2022-11-03 02:43:12,129 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:43:11" (1/1) ... [2022-11-03 02:43:12,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:43:11" (1/1) ... [2022-11-03 02:43:12,143 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:43:12,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:43:12,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:43:12,145 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:43:12,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:43:11" (1/1) ... [2022-11-03 02:43:12,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:43:12,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a0f0dd0-8350-4970-9ff3-197cef6911fb/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:43:12,178 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a0f0dd0-8350-4970-9ff3-197cef6911fb/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:43:12,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a0f0dd0-8350-4970-9ff3-197cef6911fb/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:43:12,244 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-11-03 02:43:12,244 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-11-03 02:43:12,245 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-11-03 02:43:12,246 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-11-03 02:43:12,246 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-03 02:43:12,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:43:12,248 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-03 02:43:12,248 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-03 02:43:12,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:43:12,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-03 02:43:12,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-03 02:43:12,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:43:12,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:43:12,250 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2022-11-03 02:43:12,250 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2022-11-03 02:43:12,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:43:12,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:43:12,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:43:12,251 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-03 02:43:12,251 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-03 02:43:12,251 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-03 02:43:12,251 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-03 02:43:12,252 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 02:43:12,253 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 02:43:12,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:43:12,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:43:12,253 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2022-11-03 02:43:12,253 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2022-11-03 02:43:12,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:43:12,253 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-03 02:43:12,254 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-03 02:43:12,255 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-03 02:43:12,255 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-03 02:43:12,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:43:12,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:43:12,589 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:43:12,596 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:43:14,029 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:43:14,366 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:43:14,366 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 02:43:14,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:43:14 BoogieIcfgContainer [2022-11-03 02:43:14,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:43:14,372 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:43:14,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:43:14,377 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:43:14,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:43:08" (1/3) ... [2022-11-03 02:43:14,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@667763ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:43:14, skipping insertion in model container [2022-11-03 02:43:14,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:43:11" (2/3) ... [2022-11-03 02:43:14,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@667763ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:43:14, skipping insertion in model container [2022-11-03 02:43:14,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:43:14" (3/3) ... [2022-11-03 02:43:14,385 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_eq_byte_buf_harness.i [2022-11-03 02:43:14,404 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:43:14,405 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:43:14,477 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:43:14,488 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;@64428752, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:43:14,489 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:43:14,493 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) [2022-11-03 02:43:14,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-03 02:43:14,507 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:43:14,508 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] [2022-11-03 02:43:14,508 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:43:14,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:43:14,517 INFO L85 PathProgramCache]: Analyzing trace with hash 45101985, now seen corresponding path program 1 times [2022-11-03 02:43:14,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:43:14,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147820962] [2022-11-03 02:43:14,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:43:14,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:43:17,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:43:28,497 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-11-03 02:43:28,498 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:43:28,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147820962] [2022-11-03 02:43:28,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147820962] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:43:28,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380430667] [2022-11-03 02:43:28,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:43:28,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:43:28,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a0f0dd0-8350-4970-9ff3-197cef6911fb/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:43:28,502 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a0f0dd0-8350-4970-9ff3-197cef6911fb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:43:28,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a0f0dd0-8350-4970-9ff3-197cef6911fb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:43:29,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:43:29,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 2742 conjuncts, 134 conjunts are in the unsatisfiable core [2022-11-03 02:43:29,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:43:29,712 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 02:43:29,723 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 02:43:31,103 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:43:31,108 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:43:31,108 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 02:43:31,117 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:43:31,121 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:43:31,121 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 02:43:32,082 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 02:43:32,082 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 16 treesize of output 22 [2022-11-03 02:43:32,092 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 5 [2022-11-03 02:43:32,419 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 02:43:32,419 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 20 treesize of output 26 [2022-11-03 02:43:32,436 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 02:43:33,363 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 9 [2022-11-03 02:43:33,369 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-11-03 02:43:33,522 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 20 treesize of output 8 [2022-11-03 02:43:37,197 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 15 proven. 57 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 02:43:37,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:43:38,461 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 13430 disjunctions. This might take some time... [2022-11-03 02:43:52,717 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 13413 disjunctions.