./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_2aac4624-161f-4781-a617-c66a5b20fa48/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aac4624-161f-4781-a617-c66a5b20fa48/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aac4624-161f-4781-a617-c66a5b20fa48/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aac4624-161f-4781-a617-c66a5b20fa48/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aac4624-161f-4781-a617-c66a5b20fa48/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aac4624-161f-4781-a617-c66a5b20fa48/bin/utaipan-I9t0OCRTmS --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 efe93c285b9cfe4b236eb7cc9957c6e5b1b94bff3322775b8e8d61a9769c319e --- 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-8393723 [2022-11-19 08:34:45,637 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:34:45,640 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:34:45,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:34:45,683 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:34:45,687 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:34:45,690 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:34:45,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:34:45,697 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:34:45,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:34:45,702 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:34:45,705 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:34:45,706 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:34:45,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:34:45,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:34:45,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:34:45,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:34:45,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:34:45,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:34:45,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:34:45,728 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:34:45,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:34:45,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:34:45,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:34:45,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:34:45,746 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:34:45,747 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:34:45,749 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:34:45,750 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:34:45,751 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:34:45,752 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:34:45,753 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:34:45,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:34:45,758 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:34:45,759 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:34:45,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:34:45,760 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:34:45,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:34:45,761 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:34:45,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:34:45,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:34:45,763 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aac4624-161f-4781-a617-c66a5b20fa48/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 08:34:45,798 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:34:45,799 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:34:45,799 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:34:45,800 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:34:45,801 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:34:45,801 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:34:45,801 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:34:45,801 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:34:45,802 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:34:45,802 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:34:45,803 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:34:45,803 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:34:45,803 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:34:45,804 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:34:45,804 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:34:45,804 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:34:45,804 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:34:45,805 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:34:45,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:34:45,806 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:34:45,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:34:45,806 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:34:45,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:34:45,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:34:45,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:34:45,808 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:34:45,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:34:45,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:34:45,809 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:34:45,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:34:45,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:34:45,810 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:34:45,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:34:45,810 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:34:45,811 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:34:45,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:34:45,811 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:34:45,811 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:34:45,811 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_2aac4624-161f-4781-a617-c66a5b20fa48/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aac4624-161f-4781-a617-c66a5b20fa48/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efe93c285b9cfe4b236eb7cc9957c6e5b1b94bff3322775b8e8d61a9769c319e [2022-11-19 08:34:46,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:34:46,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:34:46,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:34:46,119 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:34:46,120 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:34:46,121 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aac4624-161f-4781-a617-c66a5b20fa48/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i [2022-11-19 08:34:46,205 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aac4624-161f-4781-a617-c66a5b20fa48/bin/utaipan-I9t0OCRTmS/data/7a94c4d5d/3a8124e5803c4f6a8c91e0fb74b6e39b/FLAG768c1dea4 [2022-11-19 08:34:47,043 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:34:47,044 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aac4624-161f-4781-a617-c66a5b20fa48/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i [2022-11-19 08:34:47,091 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aac4624-161f-4781-a617-c66a5b20fa48/bin/utaipan-I9t0OCRTmS/data/7a94c4d5d/3a8124e5803c4f6a8c91e0fb74b6e39b/FLAG768c1dea4 [2022-11-19 08:34:47,518 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aac4624-161f-4781-a617-c66a5b20fa48/bin/utaipan-I9t0OCRTmS/data/7a94c4d5d/3a8124e5803c4f6a8c91e0fb74b6e39b [2022-11-19 08:34:47,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:34:47,523 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:34:47,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:34:47,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:34:47,534 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:34:47,535 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:34:47" (1/1) ... [2022-11-19 08:34:47,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ea0d8da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:34:47, skipping insertion in model container [2022-11-19 08:34:47,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:34:47" (1/1) ... [2022-11-19 08:34:47,545 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:34:47,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:34:47,933 WARN L234 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_2aac4624-161f-4781-a617-c66a5b20fa48/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4489,4502] [2022-11-19 08:34:47,941 WARN L234 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_2aac4624-161f-4781-a617-c66a5b20fa48/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4549,4562] [2022-11-19 08:34:48,909 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:34:48,910 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:34:48,910 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:34:48,911 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:34:48,913 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:34:48,927 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:34:48,928 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:34:48,930 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:34:48,931 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:34:49,383 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-19 08:34:49,385 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-19 08:34:49,386 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-19 08:34:49,389 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-19 08:34:49,398 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-19 08:34:49,401 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-19 08:34:49,403 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-19 08:34:49,408 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-19 08:34:49,410 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-19 08:34:49,412 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-19 08:34:49,599 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-19 08:34:49,724 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:34:49,724 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:34:49,819 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:34:49,876 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:34:49,891 WARN L234 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_2aac4624-161f-4781-a617-c66a5b20fa48/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4489,4502] [2022-11-19 08:34:49,892 WARN L234 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_2aac4624-161f-4781-a617-c66a5b20fa48/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4549,4562] [2022-11-19 08:34:49,937 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:34:49,938 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:34:49,938 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:34:49,939 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:34:49,940 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:34:49,948 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:34:49,948 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:34:49,950 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:34:49,950 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:34:49,990 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-19 08:34:49,991 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-19 08:34:49,992 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-19 08:34:49,993 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-19 08:34:49,994 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-19 08:34:49,995 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-19 08:34:49,996 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-19 08:34:49,996 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-19 08:34:49,997 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-19 08:34:49,997 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-19 08:34:50,021 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-19 08:34:50,110 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:34:50,110 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:34:50,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:34:50,538 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:34:50,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:34:50 WrapperNode [2022-11-19 08:34:50,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:34:50,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:34:50,540 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:34:50,540 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:34:50,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:34:50" (1/1) ... [2022-11-19 08:34:50,676 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:34:50" (1/1) ... [2022-11-19 08:34:50,801 INFO L138 Inliner]: procedures = 691, calls = 2665, calls flagged for inlining = 60, calls inlined = 6, statements flattened = 886 [2022-11-19 08:34:50,801 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:34:50,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:34:50,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:34:50,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:34:50,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:34:50" (1/1) ... [2022-11-19 08:34:50,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:34:50" (1/1) ... [2022-11-19 08:34:50,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:34:50" (1/1) ... [2022-11-19 08:34:50,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:34:50" (1/1) ... [2022-11-19 08:34:50,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:34:50" (1/1) ... [2022-11-19 08:34:50,914 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:34:50" (1/1) ... [2022-11-19 08:34:50,936 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:34:50" (1/1) ... [2022-11-19 08:34:50,951 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:34:50" (1/1) ... [2022-11-19 08:34:50,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:34:50,972 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:34:50,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:34:50,974 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:34:50,975 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:34:50" (1/1) ... [2022-11-19 08:34:50,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:34:50,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aac4624-161f-4781-a617-c66a5b20fa48/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:34:51,010 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aac4624-161f-4781-a617-c66a5b20fa48/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:34:51,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aac4624-161f-4781-a617-c66a5b20fa48/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:34:51,066 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-11-19 08:34:51,067 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-11-19 08:34:51,068 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 08:34:51,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:34:51,069 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-19 08:34:51,070 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-19 08:34:51,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:34:51,071 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 08:34:51,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 08:34:51,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:34:51,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:34:51,072 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2022-11-19 08:34:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2022-11-19 08:34:51,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:34:51,073 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member [2022-11-19 08:34:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member [2022-11-19 08:34:51,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:34:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:34:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-19 08:34:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-19 08:34:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-19 08:34:51,076 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-19 08:34:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 08:34:51,076 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 08:34:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:34:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:34:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2022-11-19 08:34:51,077 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2022-11-19 08:34:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 08:34:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-19 08:34:51,077 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-19 08:34:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-19 08:34:51,078 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-19 08:34:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded [2022-11-19 08:34:51,078 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded [2022-11-19 08:34:51,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:34:51,079 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_buf_equivalence [2022-11-19 08:34:51,079 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_buf_equivalence [2022-11-19 08:34:51,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:34:51,472 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:34:51,482 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:34:53,028 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:34:53,295 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:34:53,296 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 08:34:53,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:34:53 BoogieIcfgContainer [2022-11-19 08:34:53,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:34:53,302 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:34:53,302 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:34:53,306 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:34:53,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:34:47" (1/3) ... [2022-11-19 08:34:53,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c773f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:34:53, skipping insertion in model container [2022-11-19 08:34:53,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:34:50" (2/3) ... [2022-11-19 08:34:53,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c773f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:34:53, skipping insertion in model container [2022-11-19 08:34:53,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:34:53" (3/3) ... [2022-11-19 08:34:53,311 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_harness.i [2022-11-19 08:34:53,332 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:34:53,333 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:34:53,421 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:34:53,432 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;@2dd575c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:34:53,433 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:34:53,438 INFO L276 IsEmpty]: Start isEmpty. Operand has 122 states, 61 states have (on average 1.180327868852459) internal successors, (72), 62 states have internal predecessors, (72), 46 states have call successors, (46), 13 states have call predecessors, (46), 13 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-11-19 08:34:53,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-19 08:34:53,450 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:53,452 INFO L195 NwaCegarLoop]: trace histogram [7, 4, 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] [2022-11-19 08:34:53,453 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:34:53,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:53,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1989659951, now seen corresponding path program 1 times [2022-11-19 08:34:53,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:53,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313727720] [2022-11-19 08:34:53,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:53,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:57,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:20,233 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:35:20,234 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:35:20,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313727720] [2022-11-19 08:35:20,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313727720] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:35:20,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294610855] [2022-11-19 08:35:20,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:20,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:35:20,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aac4624-161f-4781-a617-c66a5b20fa48/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:35:20,241 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aac4624-161f-4781-a617-c66a5b20fa48/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:35:20,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aac4624-161f-4781-a617-c66a5b20fa48/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:35:21,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:21,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 2753 conjuncts, 132 conjunts are in the unsatisfiable core [2022-11-19 08:35:21,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:35:21,363 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 [2022-11-19 08:35:21,947 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 [2022-11-19 08:35:23,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:35:23,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:35:23,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:35:23,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:35:23,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 51 [2022-11-19 08:35:23,178 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 38 treesize of output 38 [2022-11-19 08:35:23,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 34 [2022-11-19 08:35:23,421 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 0 case distinctions, treesize of input 20 treesize of output 8 [2022-11-19 08:35:23,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-11-19 08:35:34,843 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:35:34,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 47 [2022-11-19 08:35:34,936 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:35:34,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 16 case distinctions, treesize of input 141 treesize of output 133 [2022-11-19 08:35:36,062 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 20 proven. 35 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 08:35:36,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:35:39,640 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 76449 disjunctions. This might take some time... [2022-11-19 08:44:45,148 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 76449 disjunctions.