./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 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381eedcb-3f0e-40d4-b17a-0ee958b04f31/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381eedcb-3f0e-40d4-b17a-0ee958b04f31/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381eedcb-3f0e-40d4-b17a-0ee958b04f31/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381eedcb-3f0e-40d4-b17a-0ee958b04f31/bin/utaipan-TEXQjIfE4P/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_381eedcb-3f0e-40d4-b17a-0ee958b04f31/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381eedcb-3f0e-40d4-b17a-0ee958b04f31/bin/utaipan-TEXQjIfE4P --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 --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 22:47:24,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 22:47:24,619 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 22:47:24,663 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 22:47:24,663 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 22:47:24,665 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 22:47:24,667 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 22:47:24,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 22:47:24,672 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 22:47:24,673 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 22:47:24,674 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 22:47:24,675 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 22:47:24,676 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 22:47:24,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 22:47:24,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 22:47:24,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 22:47:24,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 22:47:24,683 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 22:47:24,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 22:47:24,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 22:47:24,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 22:47:24,694 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 22:47:24,696 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 22:47:24,702 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 22:47:24,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 22:47:24,710 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 22:47:24,711 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 22:47:24,712 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 22:47:24,713 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 22:47:24,715 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 22:47:24,715 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 22:47:24,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 22:47:24,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 22:47:24,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 22:47:24,721 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 22:47:24,723 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 22:47:24,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 22:47:24,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 22:47:24,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 22:47:24,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 22:47:24,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 22:47:24,728 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381eedcb-3f0e-40d4-b17a-0ee958b04f31/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-20 22:47:24,777 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 22:47:24,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 22:47:24,778 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 22:47:24,778 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 22:47:24,785 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 22:47:24,785 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 22:47:24,786 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 22:47:24,786 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 22:47:24,786 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 22:47:24,786 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 22:47:24,787 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 22:47:24,788 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 22:47:24,788 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 22:47:24,788 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 22:47:24,788 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 22:47:24,788 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 22:47:24,789 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 22:47:24,789 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 22:47:24,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 22:47:24,790 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 22:47:24,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 22:47:24,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 22:47:24,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 22:47:24,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 22:47:24,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 22:47:24,792 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 22:47:24,793 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 22:47:24,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 22:47:24,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 22:47:24,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:47:24,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 22:47:24,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 22:47:24,795 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 22:47:24,795 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 22:47:24,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 22:47:24,796 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 22:47:24,796 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 22:47:24,796 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 22:47:24,796 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_381eedcb-3f0e-40d4-b17a-0ee958b04f31/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381eedcb-3f0e-40d4-b17a-0ee958b04f31/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0658a835d559c56129f1a85a00e9d3bbd205d66ef64b5c7d14ae72b3d1b496e0 [2021-11-20 22:47:25,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 22:47:25,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 22:47:25,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 22:47:25,115 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 22:47:25,116 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 22:47:25,117 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381eedcb-3f0e-40d4-b17a-0ee958b04f31/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i [2021-11-20 22:47:25,200 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381eedcb-3f0e-40d4-b17a-0ee958b04f31/bin/utaipan-TEXQjIfE4P/data/dea189df0/64b68b85512e44b383e226e5dbc4aeaa/FLAGd3a487f93 [2021-11-20 22:47:26,167 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 22:47:26,168 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381eedcb-3f0e-40d4-b17a-0ee958b04f31/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i [2021-11-20 22:47:26,229 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381eedcb-3f0e-40d4-b17a-0ee958b04f31/bin/utaipan-TEXQjIfE4P/data/dea189df0/64b68b85512e44b383e226e5dbc4aeaa/FLAGd3a487f93 [2021-11-20 22:47:26,568 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381eedcb-3f0e-40d4-b17a-0ee958b04f31/bin/utaipan-TEXQjIfE4P/data/dea189df0/64b68b85512e44b383e226e5dbc4aeaa [2021-11-20 22:47:26,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 22:47:26,571 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 22:47:26,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 22:47:26,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 22:47:26,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 22:47:26,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:47:26" (1/1) ... [2021-11-20 22:47:26,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6037c9a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:26, skipping insertion in model container [2021-11-20 22:47:26,579 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:47:26" (1/1) ... [2021-11-20 22:47:26,587 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 22:47:26,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 22:47:27,056 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_381eedcb-3f0e-40d4-b17a-0ee958b04f31/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4504,4517] [2021-11-20 22:47:27,064 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_381eedcb-3f0e-40d4-b17a-0ee958b04f31/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4564,4577] [2021-11-20 22:47:28,121 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:47:28,122 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:47:28,123 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:47:28,124 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:47:28,125 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:47:28,140 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:47:28,141 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:47:28,143 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:47:28,144 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:47:28,613 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-20 22:47:28,615 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-20 22:47:28,617 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-20 22:47:28,618 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-20 22:47:28,622 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-20 22:47:28,626 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-20 22:47:28,627 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-20 22:47:28,628 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-20 22:47:28,629 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-20 22:47:28,631 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-20 22:47:28,809 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-20 22:47:28,931 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:47:28,932 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:47:29,055 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:47:29,125 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 22:47:29,154 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_381eedcb-3f0e-40d4-b17a-0ee958b04f31/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4504,4517] [2021-11-20 22:47:29,155 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_381eedcb-3f0e-40d4-b17a-0ee958b04f31/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4564,4577] [2021-11-20 22:47:29,210 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:47:29,210 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:47:29,211 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:47:29,211 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:47:29,216 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:47:29,229 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:47:29,233 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:47:29,234 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:47:29,237 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:47:29,287 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-20 22:47:29,288 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-20 22:47:29,289 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-20 22:47:29,289 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-20 22:47:29,290 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-20 22:47:29,291 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-20 22:47:29,291 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-20 22:47:29,292 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-20 22:47:29,292 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-20 22:47:29,293 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-20 22:47:29,322 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-20 22:47:29,398 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:47:29,399 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:47:29,506 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:47:29,739 INFO L208 MainTranslator]: Completed translation [2021-11-20 22:47:29,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:29 WrapperNode [2021-11-20 22:47:29,740 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 22:47:29,741 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 22:47:29,741 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 22:47:29,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 22:47:29,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:29" (1/1) ... [2021-11-20 22:47:29,880 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:29" (1/1) ... [2021-11-20 22:47:29,989 INFO L137 Inliner]: procedures = 691, calls = 2649, calls flagged for inlining = 58, calls inlined = 4, statements flattened = 829 [2021-11-20 22:47:29,992 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 22:47:29,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 22:47:29,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 22:47:29,994 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 22:47:30,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:29" (1/1) ... [2021-11-20 22:47:30,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:29" (1/1) ... [2021-11-20 22:47:30,017 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:29" (1/1) ... [2021-11-20 22:47:30,018 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:29" (1/1) ... [2021-11-20 22:47:30,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:29" (1/1) ... [2021-11-20 22:47:30,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:29" (1/1) ... [2021-11-20 22:47:30,115 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:29" (1/1) ... [2021-11-20 22:47:30,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 22:47:30,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 22:47:30,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 22:47:30,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 22:47:30,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:29" (1/1) ... [2021-11-20 22:47:30,139 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:47:30,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381eedcb-3f0e-40d4-b17a-0ee958b04f31/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:47:30,179 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381eedcb-3f0e-40d4-b17a-0ee958b04f31/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 22:47:30,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381eedcb-3f0e-40d4-b17a-0ee958b04f31/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 22:47:30,232 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2021-11-20 22:47:30,233 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2021-11-20 22:47:30,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 22:47:30,234 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-20 22:47:30,235 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-20 22:47:30,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 22:47:30,235 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_bounded [2021-11-20 22:47:30,236 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_bounded [2021-11-20 22:47:30,236 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-20 22:47:30,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-20 22:47:30,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 22:47:30,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 22:47:30,237 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2021-11-20 22:47:30,237 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2021-11-20 22:47:30,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 22:47:30,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 22:47:30,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 22:47:30,239 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-20 22:47:30,239 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-20 22:47:30,239 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-20 22:47:30,239 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-20 22:47:30,239 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-20 22:47:30,240 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-20 22:47:30,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 22:47:30,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 22:47:30,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 22:47:30,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 22:47:30,241 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_cursor_has_allocated_buffer_member [2021-11-20 22:47:30,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_cursor_has_allocated_buffer_member [2021-11-20 22:47:30,241 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_compare_lookup [2021-11-20 22:47:30,242 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_compare_lookup [2021-11-20 22:47:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 22:47:30,561 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 22:47:30,563 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 22:47:32,037 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 22:47:32,232 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 22:47:32,232 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 22:47:32,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:47:32 BoogieIcfgContainer [2021-11-20 22:47:32,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 22:47:32,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 22:47:32,237 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 22:47:32,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 22:47:32,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:47:26" (1/3) ... [2021-11-20 22:47:32,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dfa09c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:47:32, skipping insertion in model container [2021-11-20 22:47:32,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:29" (2/3) ... [2021-11-20 22:47:32,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dfa09c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:47:32, skipping insertion in model container [2021-11-20 22:47:32,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:47:32" (3/3) ... [2021-11-20 22:47:32,251 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_compare_lookup_harness.i [2021-11-20 22:47:32,256 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 22:47:32,257 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 22:47:32,318 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 22:47:32,331 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 22:47:32,332 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 22:47:32,358 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) [2021-11-20 22:47:32,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-20 22:47:32,370 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:47:32,371 INFO L514 BasicCegarLoop]: 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] [2021-11-20 22:47:32,371 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:47:32,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:47:32,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1596270366, now seen corresponding path program 1 times [2021-11-20 22:47:32,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:47:32,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113201483] [2021-11-20 22:47:32,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:47:32,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:47:34,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:47:35,247 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-20 22:47:35,247 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:47:35,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113201483] [2021-11-20 22:47:35,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113201483] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 22:47:35,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225562850] [2021-11-20 22:47:35,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:47:35,249 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:47:35,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381eedcb-3f0e-40d4-b17a-0ee958b04f31/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:47:35,252 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381eedcb-3f0e-40d4-b17a-0ee958b04f31/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:47:35,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381eedcb-3f0e-40d4-b17a-0ee958b04f31/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 22:47:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:47:35,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 2585 conjuncts, 85 conjunts are in the unsatisfiable core [2021-11-20 22:47:35,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:47:36,162 INFO L388 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 [2021-11-20 22:47:36,169 INFO L388 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 [2021-11-20 22:47:36,906 INFO L388 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 75 treesize of output 71 [2021-11-20 22:47:36,914 INFO L388 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 71 treesize of output 67 [2021-11-20 22:47:36,923 INFO L388 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 67 treesize of output 59 [2021-11-20 22:47:36,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:36,952 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-20 22:47:36,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 56 treesize of output 44 [2021-11-20 22:47:36,961 INFO L388 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 41 treesize of output 33 [2021-11-20 22:47:39,131 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 22:47:39,139 INFO L354 Elim1Store]: treesize reduction 17, result has 15.0 percent of original size [2021-11-20 22:47:39,140 INFO L388 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 60 [2021-11-20 22:47:39,146 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 22:47:39,153 INFO L354 Elim1Store]: treesize reduction 17, result has 15.0 percent of original size [2021-11-20 22:47:39,153 INFO L388 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 35 [2021-11-20 22:47:39,626 INFO L388 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 [2021-11-20 22:47:39,679 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 22:47:39,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 22:47:41,084 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 13430 disjunctions. This might take some time... [2021-11-20 22:47:53,569 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 13413 disjunctions.