./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_7c63c0a0-a03f-4973-afc4-bd9c5732b4e9/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c63c0a0-a03f-4973-afc4-bd9c5732b4e9/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_7c63c0a0-a03f-4973-afc4-bd9c5732b4e9/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c63c0a0-a03f-4973-afc4-bd9c5732b4e9/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c63c0a0-a03f-4973-afc4-bd9c5732b4e9/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_7c63c0a0-a03f-4973-afc4-bd9c5732b4e9/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 0658a835d559c56129f1a85a00e9d3bbd205d66ef64b5c7d14ae72b3d1b496e0 --- 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 02:10:32,913 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:10:32,918 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:10:32,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:10:32,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:10:32,974 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:10:32,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:10:32,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:10:32,982 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:10:32,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:10:32,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:10:32,992 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:10:32,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:10:32,995 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:10:32,997 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:10:33,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:10:33,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:10:33,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:10:33,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:10:33,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:10:33,015 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:10:33,016 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:10:33,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:10:33,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:10:33,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:10:33,031 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:10:33,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:10:33,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:10:33,038 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:10:33,039 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:10:33,040 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:10:33,041 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:10:33,044 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:10:33,046 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:10:33,049 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:10:33,049 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:10:33,050 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:10:33,050 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:10:33,050 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:10:33,051 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:10:33,052 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:10:33,053 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c63c0a0-a03f-4973-afc4-bd9c5732b4e9/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:10:33,090 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:10:33,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:10:33,091 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:10:33,091 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:10:33,092 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:10:33,092 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:10:33,092 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:10:33,093 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:10:33,093 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:10:33,093 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:10:33,094 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:10:33,095 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:10:33,095 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:10:33,095 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:10:33,095 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:10:33,095 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:10:33,096 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:10:33,096 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:10:33,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:10:33,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:10:33,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:10:33,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:10:33,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:10:33,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:10:33,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:10:33,099 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:10:33,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:10:33,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:10:33,099 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:10:33,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:10:33,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:10:33,100 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:10:33,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:10:33,102 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:10:33,103 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:10:33,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:10:33,103 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:10:33,103 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:10:33,104 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_7c63c0a0-a03f-4973-afc4-bd9c5732b4e9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c63c0a0-a03f-4973-afc4-bd9c5732b4e9/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0658a835d559c56129f1a85a00e9d3bbd205d66ef64b5c7d14ae72b3d1b496e0 [2022-11-03 02:10:33,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:10:33,455 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:10:33,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:10:33,460 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:10:33,461 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:10:33,463 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c63c0a0-a03f-4973-afc4-bd9c5732b4e9/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i [2022-11-03 02:10:33,550 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c63c0a0-a03f-4973-afc4-bd9c5732b4e9/bin/utaipan-7li7fVZpFI/data/516f5ef96/c093e771adc449798b64c556eacef4d9/FLAG113324598 [2022-11-03 02:10:34,559 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:10:34,560 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c63c0a0-a03f-4973-afc4-bd9c5732b4e9/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i [2022-11-03 02:10:34,600 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c63c0a0-a03f-4973-afc4-bd9c5732b4e9/bin/utaipan-7li7fVZpFI/data/516f5ef96/c093e771adc449798b64c556eacef4d9/FLAG113324598 [2022-11-03 02:10:35,022 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c63c0a0-a03f-4973-afc4-bd9c5732b4e9/bin/utaipan-7li7fVZpFI/data/516f5ef96/c093e771adc449798b64c556eacef4d9 [2022-11-03 02:10:35,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:10:35,027 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:10:35,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:10:35,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:10:35,038 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:10:35,039 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:10:35" (1/1) ... [2022-11-03 02:10:35,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42d146b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:10:35, skipping insertion in model container [2022-11-03 02:10:35,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:10:35" (1/1) ... [2022-11-03 02:10:35,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:10:35,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:10:35,544 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_7c63c0a0-a03f-4973-afc4-bd9c5732b4e9/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4504,4517] [2022-11-03 02:10:35,554 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_7c63c0a0-a03f-4973-afc4-bd9c5732b4e9/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4564,4577] [2022-11-03 02:10:36,718 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:10:36,726 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:10:36,727 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:10:36,728 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:10:36,729 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:10:36,744 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:10:36,745 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:10:36,747 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:10:36,748 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:10:37,266 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-03 02:10:37,267 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-03 02:10:37,269 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-03 02:10:37,272 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-03 02:10:37,279 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-03 02:10:37,285 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-03 02:10:37,286 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-03 02:10:37,288 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-03 02:10:37,292 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-03 02:10:37,294 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-03 02:10:37,499 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-03 02:10:37,614 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:10:37,615 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:10:37,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:10:37,828 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:10:37,861 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_7c63c0a0-a03f-4973-afc4-bd9c5732b4e9/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4504,4517] [2022-11-03 02:10:37,862 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_7c63c0a0-a03f-4973-afc4-bd9c5732b4e9/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4564,4577] [2022-11-03 02:10:37,940 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:10:37,961 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:10:37,962 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:10:37,962 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:10:37,964 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:10:37,977 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:10:37,985 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:10:37,987 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:10:37,988 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:10:38,048 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-03 02:10:38,049 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-03 02:10:38,050 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-03 02:10:38,051 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-03 02:10:38,053 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-03 02:10:38,053 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-03 02:10:38,054 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-03 02:10:38,055 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-03 02:10:38,055 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-03 02:10:38,059 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-03 02:10:38,099 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-03 02:10:38,193 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:10:38,194 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-03 02:10:38,237 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:10:38,533 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:10:38,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:10:38 WrapperNode [2022-11-03 02:10:38,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:10:38,535 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:10:38,535 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:10:38,535 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:10:38,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:10:38" (1/1) ... [2022-11-03 02:10:38,676 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:10:38" (1/1) ... [2022-11-03 02:10:38,760 INFO L138 Inliner]: procedures = 691, calls = 2649, calls flagged for inlining = 58, calls inlined = 4, statements flattened = 829 [2022-11-03 02:10:38,761 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:10:38,762 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:10:38,762 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:10:38,762 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:10:38,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:10:38" (1/1) ... [2022-11-03 02:10:38,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:10:38" (1/1) ... [2022-11-03 02:10:38,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:10:38" (1/1) ... [2022-11-03 02:10:38,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:10:38" (1/1) ... [2022-11-03 02:10:38,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:10:38" (1/1) ... [2022-11-03 02:10:38,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:10:38" (1/1) ... [2022-11-03 02:10:38,859 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:10:38" (1/1) ... [2022-11-03 02:10:38,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:10:38" (1/1) ... [2022-11-03 02:10:38,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:10:38,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:10:38,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:10:38,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:10:38,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:10:38" (1/1) ... [2022-11-03 02:10:38,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:10:38,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c63c0a0-a03f-4973-afc4-bd9c5732b4e9/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:10:38,923 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c63c0a0-a03f-4973-afc4-bd9c5732b4e9/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:10:38,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c63c0a0-a03f-4973-afc4-bd9c5732b4e9/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:10:38,973 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-11-03 02:10:38,974 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-11-03 02:10:38,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:10:38,975 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-03 02:10:38,976 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-03 02:10:38,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:10:38,976 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_bounded [2022-11-03 02:10:38,976 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_bounded [2022-11-03 02:10:38,977 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-03 02:10:38,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-03 02:10:38,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:10:38,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:10:38,977 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2022-11-03 02:10:38,978 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2022-11-03 02:10:38,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:10:38,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:10:38,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:10:38,978 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-03 02:10:38,979 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-03 02:10:38,979 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-03 02:10:38,979 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-03 02:10:38,979 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 02:10:38,979 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 02:10:38,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:10:38,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:10:38,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:10:38,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:10:38,981 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_cursor_has_allocated_buffer_member [2022-11-03 02:10:38,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_cursor_has_allocated_buffer_member [2022-11-03 02:10:38,981 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_compare_lookup [2022-11-03 02:10:38,982 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_compare_lookup [2022-11-03 02:10:38,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:10:39,350 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:10:39,353 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:10:40,786 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:10:41,065 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:10:41,066 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 02:10:41,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:10:41 BoogieIcfgContainer [2022-11-03 02:10:41,069 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:10:41,072 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:10:41,073 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:10:41,077 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:10:41,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:10:35" (1/3) ... [2022-11-03 02:10:41,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@758a7c2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:10:41, skipping insertion in model container [2022-11-03 02:10:41,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:10:38" (2/3) ... [2022-11-03 02:10:41,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@758a7c2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:10:41, skipping insertion in model container [2022-11-03 02:10:41,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:10:41" (3/3) ... [2022-11-03 02:10:41,085 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_compare_lookup_harness.i [2022-11-03 02:10:41,115 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:10:41,115 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:10:41,213 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:10:41,227 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;@3ac84385, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:10:41,229 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:10:41,234 INFO L276 IsEmpty]: Start isEmpty. Operand has 109 states, 56 states have (on average 1.2142857142857142) internal successors, (68), 57 states have internal predecessors, (68), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-11-03 02:10:41,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-03 02:10:41,248 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:10:41,249 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2022-11-03 02:10:41,249 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:10:41,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:10:41,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1596270366, now seen corresponding path program 1 times [2022-11-03 02:10:41,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:10:41,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071498831] [2022-11-03 02:10:41,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:10:41,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:10:44,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:10:51,065 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-03 02:10:51,066 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:10:51,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071498831] [2022-11-03 02:10:51,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071498831] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:10:51,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089704245] [2022-11-03 02:10:51,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:10:51,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:10:51,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c63c0a0-a03f-4973-afc4-bd9c5732b4e9/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:10:51,071 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c63c0a0-a03f-4973-afc4-bd9c5732b4e9/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:10:51,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c63c0a0-a03f-4973-afc4-bd9c5732b4e9/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:10:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:10:51,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 2646 conjuncts, 99 conjunts are in the unsatisfiable core [2022-11-03 02:10:51,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:10:52,074 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 02:10:52,081 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 02:10:52,726 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 17 treesize of output 13 [2022-11-03 02:10:52,732 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 17 treesize of output 13 [2022-11-03 02:10:52,739 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 21 treesize of output 13 [2022-11-03 02:10:52,743 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 21 treesize of output 13 [2022-11-03 02:10:52,758 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 6 treesize of output 5 [2022-11-03 02:10:54,723 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:54,728 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:10:54,729 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 82 treesize of output 62 [2022-11-03 02:10:54,739 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:10:54,749 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:10:54,749 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 43 [2022-11-03 02:10:55,310 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 21 treesize of output 13 [2022-11-03 02:10:55,358 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 24 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 02:10:55,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:10:57,114 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 13430 disjunctions. This might take some time... [2022-11-03 02:11:10,850 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 13413 disjunctions.