./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291170b7-8ce5-4d81-b96e-6ce89ec2abc0/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291170b7-8ce5-4d81-b96e-6ce89ec2abc0/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291170b7-8ce5-4d81-b96e-6ce89ec2abc0/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291170b7-8ce5-4d81-b96e-6ce89ec2abc0/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291170b7-8ce5-4d81-b96e-6ce89ec2abc0/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291170b7-8ce5-4d81-b96e-6ce89ec2abc0/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4c8e70dc7f77f825f3ef2e89303bbf356ceb3a21ef4dcf0b5c90667d3d62b0fd --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:38:53,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:38:53,015 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:38:53,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:38:53,050 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:38:53,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:38:53,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:38:53,061 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:38:53,064 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:38:53,071 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:38:53,073 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:38:53,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:38:53,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:38:53,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:38:53,083 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:38:53,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:38:53,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:38:53,089 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:38:53,091 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:38:53,097 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:38:53,099 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:38:53,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:38:53,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:38:53,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:38:53,106 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:38:53,106 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:38:53,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:38:53,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:38:53,108 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:38:53,109 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:38:53,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:38:53,110 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:38:53,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:38:53,112 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:38:53,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:38:53,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:38:53,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:38:53,114 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:38:53,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:38:53,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:38:53,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:38:53,118 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291170b7-8ce5-4d81-b96e-6ce89ec2abc0/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:38:53,162 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:38:53,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:38:53,163 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:38:53,163 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:38:53,164 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:38:53,164 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:38:53,164 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:38:53,164 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:38:53,164 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:38:53,165 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:38:53,165 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:38:53,165 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:38:53,165 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:38:53,165 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:38:53,165 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:38:53,166 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:38:53,166 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:38:53,166 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:38:53,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:38:53,167 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:38:53,167 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:38:53,167 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:38:53,167 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:38:53,168 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:38:53,168 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:38:53,168 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:38:53,168 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:38:53,168 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:38:53,168 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:38:53,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:38:53,169 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:38:53,169 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:38:53,169 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:38:53,169 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:38:53,170 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:38:53,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:38:53,170 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:38:53,170 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:38:53,170 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_291170b7-8ce5-4d81-b96e-6ce89ec2abc0/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291170b7-8ce5-4d81-b96e-6ce89ec2abc0/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c8e70dc7f77f825f3ef2e89303bbf356ceb3a21ef4dcf0b5c90667d3d62b0fd [2022-11-22 01:38:53,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:38:53,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:38:53,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:38:53,507 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:38:53,507 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:38:53,508 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291170b7-8ce5-4d81-b96e-6ce89ec2abc0/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i [2022-11-22 01:38:56,672 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:38:57,352 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:38:57,353 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291170b7-8ce5-4d81-b96e-6ce89ec2abc0/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i [2022-11-22 01:38:57,409 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291170b7-8ce5-4d81-b96e-6ce89ec2abc0/bin/utaipan-g80aRyZoba/data/166030940/84e7a2bc04914743a5090279dcf2ea0c/FLAG2d8ccd7ea [2022-11-22 01:38:57,432 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291170b7-8ce5-4d81-b96e-6ce89ec2abc0/bin/utaipan-g80aRyZoba/data/166030940/84e7a2bc04914743a5090279dcf2ea0c [2022-11-22 01:38:57,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:38:57,441 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:38:57,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:38:57,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:38:57,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:38:57,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:38:57" (1/1) ... [2022-11-22 01:38:57,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f139fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:38:57, skipping insertion in model container [2022-11-22 01:38:57,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:38:57" (1/1) ... [2022-11-22 01:38:57,461 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:38:57,591 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:38:57,996 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291170b7-8ce5-4d81-b96e-6ce89ec2abc0/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4501,4514] [2022-11-22 01:38:58,005 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291170b7-8ce5-4d81-b96e-6ce89ec2abc0/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4561,4574] [2022-11-22 01:38:59,234 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:38:59,235 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:38:59,236 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:38:59,237 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:38:59,239 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:38:59,256 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:38:59,257 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:38:59,260 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:38:59,261 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:38:59,862 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 01:38:59,864 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 01:38:59,865 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 01:38:59,867 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 01:38:59,868 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 01:38:59,869 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 01:38:59,870 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 01:38:59,871 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 01:38:59,872 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 01:38:59,872 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 01:39:00,216 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 01:39:00,332 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:39:00,337 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:39:00,443 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:39:00,516 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:39:00,541 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291170b7-8ce5-4d81-b96e-6ce89ec2abc0/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4501,4514] [2022-11-22 01:39:00,541 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291170b7-8ce5-4d81-b96e-6ce89ec2abc0/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_byte_buf_harness.i[4561,4574] [2022-11-22 01:39:00,576 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:39:00,576 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:39:00,577 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:39:00,577 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:39:00,578 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:39:00,585 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:39:00,586 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:39:00,587 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:39:00,587 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:39:00,621 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 01:39:00,622 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 01:39:00,622 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 01:39:00,623 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 01:39:00,624 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 01:39:00,625 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 01:39:00,625 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 01:39:00,626 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 01:39:00,626 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 01:39:00,627 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 01:39:00,648 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 01:39:00,742 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:39:00,743 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:39:00,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:39:01,107 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:39:01,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:01 WrapperNode [2022-11-22 01:39:01,108 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:39:01,109 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:39:01,109 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:39:01,110 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:39:01,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:01" (1/1) ... [2022-11-22 01:39:01,251 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:01" (1/1) ... [2022-11-22 01:39:01,362 INFO L138 Inliner]: procedures = 691, calls = 2650, calls flagged for inlining = 65, calls inlined = 11, statements flattened = 933 [2022-11-22 01:39:01,362 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:39:01,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:39:01,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:39:01,363 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:39:01,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:01" (1/1) ... [2022-11-22 01:39:01,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:01" (1/1) ... [2022-11-22 01:39:01,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:01" (1/1) ... [2022-11-22 01:39:01,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:01" (1/1) ... [2022-11-22 01:39:01,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:01" (1/1) ... [2022-11-22 01:39:01,466 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:01" (1/1) ... [2022-11-22 01:39:01,473 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:01" (1/1) ... [2022-11-22 01:39:01,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:01" (1/1) ... [2022-11-22 01:39:01,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:39:01,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:39:01,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:39:01,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:39:01,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:01" (1/1) ... [2022-11-22 01:39:01,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:39:01,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291170b7-8ce5-4d81-b96e-6ce89ec2abc0/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:39:01,529 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291170b7-8ce5-4d81-b96e-6ce89ec2abc0/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:39:01,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291170b7-8ce5-4d81-b96e-6ce89ec2abc0/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:39:01,578 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-11-22 01:39:01,578 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-11-22 01:39:01,578 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-11-22 01:39:01,579 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-11-22 01:39:01,579 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-22 01:39:01,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:39:01,580 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-22 01:39:01,580 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-22 01:39:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:39:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-22 01:39:01,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-22 01:39:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:39:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:39:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2022-11-22 01:39:01,583 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2022-11-22 01:39:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:39:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:39:01,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:39:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-22 01:39:01,584 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-22 01:39:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-22 01:39:01,584 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-22 01:39:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-22 01:39:01,584 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-22 01:39:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:39:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:39:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2022-11-22 01:39:01,586 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2022-11-22 01:39:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:39:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-22 01:39:01,586 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-22 01:39:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-22 01:39:01,587 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-22 01:39:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:39:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:39:01,939 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:39:01,951 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:39:03,542 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:39:03,939 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:39:03,939 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 01:39:03,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:39:03 BoogieIcfgContainer [2022-11-22 01:39:03,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:39:03,947 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:39:03,948 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:39:03,951 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:39:03,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:38:57" (1/3) ... [2022-11-22 01:39:03,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4630830c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:39:03, skipping insertion in model container [2022-11-22 01:39:03,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:01" (2/3) ... [2022-11-22 01:39:03,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4630830c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:39:03, skipping insertion in model container [2022-11-22 01:39:03,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:39:03" (3/3) ... [2022-11-22 01:39:03,959 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_eq_byte_buf_harness.i [2022-11-22 01:39:03,984 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:39:03,984 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:39:04,066 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:39:04,080 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;@1e262c9f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:39:04,080 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:39:04,086 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 62 states have (on average 1.1935483870967742) internal successors, (74), 63 states have internal predecessors, (74), 42 states have call successors, (42), 11 states have call predecessors, (42), 11 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-11-22 01:39:04,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-22 01:39:04,099 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:39:04,100 INFO L195 NwaCegarLoop]: trace histogram [9, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:39:04,101 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:39:04,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:39:04,112 INFO L85 PathProgramCache]: Analyzing trace with hash 45101985, now seen corresponding path program 1 times [2022-11-22 01:39:04,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:39:04,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995194990] [2022-11-22 01:39:04,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:39:04,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:39:06,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:39:20,241 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-11-22 01:39:20,241 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:39:20,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995194990] [2022-11-22 01:39:20,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995194990] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:39:20,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477578280] [2022-11-22 01:39:20,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:39:20,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:39:20,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291170b7-8ce5-4d81-b96e-6ce89ec2abc0/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:39:20,271 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291170b7-8ce5-4d81-b96e-6ce89ec2abc0/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:39:20,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_291170b7-8ce5-4d81-b96e-6ce89ec2abc0/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:39:21,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:39:21,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 2738 conjuncts, 142 conjunts are in the unsatisfiable core [2022-11-22 01:39:21,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:39:21,327 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 [2022-11-22 01:39:21,742 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 [2022-11-22 01:39:21,760 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 [2022-11-22 01:39:23,908 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:39:23,914 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:39:23,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:39:23,926 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:39:23,930 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:39:23,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:39:25,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-22 01:39:25,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:39:25,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-22 01:39:26,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-11-22 01:39:26,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2022-11-22 01:39:26,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-11-22 01:39:32,681 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 20 proven. 53 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-22 01:39:32,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:39:33,995 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 14202 disjunctions. This might take some time... [2022-11-22 01:39:49,427 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 13413 disjunctions.