./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_441664ca-45a4-4c20-ae82-ea1efe865fb7/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_441664ca-45a4-4c20-ae82-ea1efe865fb7/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_441664ca-45a4-4c20-ae82-ea1efe865fb7/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_441664ca-45a4-4c20-ae82-ea1efe865fb7/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_441664ca-45a4-4c20-ae82-ea1efe865fb7/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_441664ca-45a4-4c20-ae82-ea1efe865fb7/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash efe93c285b9cfe4b236eb7cc9957c6e5b1b94bff3322775b8e8d61a9769c319e --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:37:05,891 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:37:05,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:37:05,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:37:05,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:37:05,974 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:37:05,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:37:05,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:37:05,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:37:05,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:37:05,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:37:05,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:37:05,994 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:37:06,002 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:37:06,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:37:06,005 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:37:06,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:37:06,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:37:06,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:37:06,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:37:06,015 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:37:06,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:37:06,019 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:37:06,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:37:06,023 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:37:06,024 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:37:06,024 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:37:06,025 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:37:06,026 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:37:06,027 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:37:06,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:37:06,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:37:06,030 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:37:06,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:37:06,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:37:06,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:37:06,034 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:37:06,034 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:37:06,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:37:06,036 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:37:06,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:37:06,038 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_441664ca-45a4-4c20-ae82-ea1efe865fb7/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 19:37:06,071 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:37:06,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:37:06,071 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:37:06,071 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:37:06,072 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:37:06,072 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:37:06,077 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:37:06,077 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:37:06,077 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:37:06,078 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:37:06,079 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:37:06,079 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:37:06,079 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:37:06,080 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:37:06,080 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:37:06,080 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:37:06,081 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:37:06,081 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:37:06,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:37:06,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:37:06,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:37:06,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:37:06,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:37:06,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:37:06,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:37:06,084 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:37:06,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:37:06,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:37:06,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:37:06,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:37:06,085 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:37:06,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:37:06,096 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:37:06,096 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:37:06,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:37:06,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:37:06,097 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:37:06,097 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:37:06,098 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_441664ca-45a4-4c20-ae82-ea1efe865fb7/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_441664ca-45a4-4c20-ae82-ea1efe865fb7/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efe93c285b9cfe4b236eb7cc9957c6e5b1b94bff3322775b8e8d61a9769c319e [2021-11-25 19:37:06,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:37:06,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:37:06,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:37:06,435 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:37:06,436 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:37:06,438 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_441664ca-45a4-4c20-ae82-ea1efe865fb7/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i [2021-11-25 19:37:06,527 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_441664ca-45a4-4c20-ae82-ea1efe865fb7/bin/utaipan-eEHZpOm5b7/data/c883820c3/b3864b72b64544f68db23e909f1d9f68/FLAGc195c3ea8 [2021-11-25 19:37:07,528 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:37:07,529 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_441664ca-45a4-4c20-ae82-ea1efe865fb7/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i [2021-11-25 19:37:07,587 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_441664ca-45a4-4c20-ae82-ea1efe865fb7/bin/utaipan-eEHZpOm5b7/data/c883820c3/b3864b72b64544f68db23e909f1d9f68/FLAGc195c3ea8 [2021-11-25 19:37:07,896 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_441664ca-45a4-4c20-ae82-ea1efe865fb7/bin/utaipan-eEHZpOm5b7/data/c883820c3/b3864b72b64544f68db23e909f1d9f68 [2021-11-25 19:37:07,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:37:07,901 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:37:07,902 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:37:07,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:37:07,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:37:07,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:37:07" (1/1) ... [2021-11-25 19:37:07,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7985b520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:07, skipping insertion in model container [2021-11-25 19:37:07,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:37:07" (1/1) ... [2021-11-25 19:37:07,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:37:08,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:37:08,416 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_441664ca-45a4-4c20-ae82-ea1efe865fb7/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4489,4502] [2021-11-25 19:37:08,424 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_441664ca-45a4-4c20-ae82-ea1efe865fb7/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4549,4562] [2021-11-25 19:37:09,632 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:37:09,633 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:37:09,634 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:37:09,634 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:37:09,636 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:37:09,651 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:37:09,651 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:37:09,653 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:37:09,654 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:37:10,188 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-25 19:37:10,189 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-25 19:37:10,191 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-25 19:37:10,192 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-25 19:37:10,194 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-25 19:37:10,195 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-25 19:37:10,196 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-25 19:37:10,196 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-25 19:37:10,197 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-25 19:37:10,198 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-25 19:37:10,463 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-25 19:37:10,608 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:37:10,621 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:37:10,753 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:37:10,851 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:37:10,877 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_441664ca-45a4-4c20-ae82-ea1efe865fb7/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4489,4502] [2021-11-25 19:37:10,883 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_441664ca-45a4-4c20-ae82-ea1efe865fb7/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4549,4562] [2021-11-25 19:37:10,957 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:37:10,958 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:37:10,959 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:37:10,959 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:37:10,965 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:37:10,982 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:37:10,986 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:37:10,988 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:37:10,988 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:37:11,052 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-25 19:37:11,053 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-25 19:37:11,097 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-25 19:37:11,098 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-25 19:37:11,099 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-25 19:37:11,100 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-25 19:37:11,102 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-25 19:37:11,103 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-25 19:37:11,104 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-25 19:37:11,117 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-25 19:37:11,169 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-25 19:37:11,316 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:37:11,333 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 19:37:11,391 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:37:11,797 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:37:11,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:11 WrapperNode [2021-11-25 19:37:11,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:37:11,799 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:37:11,800 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:37:11,800 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:37:11,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:11" (1/1) ... [2021-11-25 19:37:11,957 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:11" (1/1) ... [2021-11-25 19:37:12,070 INFO L137 Inliner]: procedures = 691, calls = 2666, calls flagged for inlining = 60, calls inlined = 6, statements flattened = 887 [2021-11-25 19:37:12,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:37:12,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:37:12,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:37:12,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:37:12,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:11" (1/1) ... [2021-11-25 19:37:12,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:11" (1/1) ... [2021-11-25 19:37:12,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:11" (1/1) ... [2021-11-25 19:37:12,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:11" (1/1) ... [2021-11-25 19:37:12,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:11" (1/1) ... [2021-11-25 19:37:12,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:11" (1/1) ... [2021-11-25 19:37:12,189 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:11" (1/1) ... [2021-11-25 19:37:12,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:37:12,206 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:37:12,206 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:37:12,206 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:37:12,209 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:11" (1/1) ... [2021-11-25 19:37:12,232 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:37:12,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_441664ca-45a4-4c20-ae82-ea1efe865fb7/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:37:12,262 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_441664ca-45a4-4c20-ae82-ea1efe865fb7/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:37:12,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_441664ca-45a4-4c20-ae82-ea1efe865fb7/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:37:12,308 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2021-11-25 19:37:12,308 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2021-11-25 19:37:12,309 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-25 19:37:12,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:37:12,309 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-25 19:37:12,309 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-25 19:37:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:37:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 19:37:12,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 19:37:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 19:37:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:37:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2021-11-25 19:37:12,311 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2021-11-25 19:37:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 19:37:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member [2021-11-25 19:37:12,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member [2021-11-25 19:37:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:37:12,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:37:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-25 19:37:12,313 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-25 19:37:12,313 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-25 19:37:12,313 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-25 19:37:12,313 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-25 19:37:12,314 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-25 19:37:12,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:37:12,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 19:37:12,314 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2021-11-25 19:37:12,314 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2021-11-25 19:37:12,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 19:37:12,315 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-25 19:37:12,315 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-25 19:37:12,315 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-25 19:37:12,316 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-25 19:37:12,316 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded [2021-11-25 19:37:12,316 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded [2021-11-25 19:37:12,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:37:12,317 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_buf_equivalence [2021-11-25 19:37:12,317 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_buf_equivalence [2021-11-25 19:37:12,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:37:12,767 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:37:12,770 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:37:14,569 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:37:14,811 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:37:14,812 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 19:37:14,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:37:14 BoogieIcfgContainer [2021-11-25 19:37:14,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:37:14,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:37:14,819 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:37:14,823 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:37:14,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:37:07" (1/3) ... [2021-11-25 19:37:14,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab3907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:37:14, skipping insertion in model container [2021-11-25 19:37:14,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:11" (2/3) ... [2021-11-25 19:37:14,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab3907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:37:14, skipping insertion in model container [2021-11-25 19:37:14,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:37:14" (3/3) ... [2021-11-25 19:37:14,828 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_harness.i [2021-11-25 19:37:14,835 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:37:14,836 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 19:37:14,910 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:37:14,928 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 [2021-11-25 19:37:14,933 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 19:37:14,963 INFO L276 IsEmpty]: Start isEmpty. Operand has 122 states, 61 states have (on average 1.180327868852459) internal successors, (72), 62 states have internal predecessors, (72), 46 states have call successors, (46), 13 states have call predecessors, (46), 13 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2021-11-25 19:37:14,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-25 19:37:14,977 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:37:14,978 INFO L514 BasicCegarLoop]: trace histogram [7, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:37:14,980 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:37:14,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:37:14,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1989659951, now seen corresponding path program 1 times [2021-11-25 19:37:15,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:37:15,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718919446] [2021-11-25 19:37:15,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:37:15,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:37:25,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:37:27,643 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-11-25 19:37:27,643 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:37:27,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718919446] [2021-11-25 19:37:27,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718919446] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 19:37:27,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459830817] [2021-11-25 19:37:27,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:37:27,646 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:37:27,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_441664ca-45a4-4c20-ae82-ea1efe865fb7/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:37:27,648 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_441664ca-45a4-4c20-ae82-ea1efe865fb7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:37:27,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_441664ca-45a4-4c20-ae82-ea1efe865fb7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 19:37:28,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:37:28,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 2757 conjuncts, 153 conjunts are in the unsatisfiable core [2021-11-25 19:37:28,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:37:28,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-25 19:37:29,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 19:37:29,154 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 6 treesize of output 5 [2021-11-25 19:37:33,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:37:33,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:37:33,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:37:33,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:37:33,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:37:33,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:37:33,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:37:33,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 51 [2021-11-25 19:37:33,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 40 treesize of output 28 [2021-11-25 19:37:33,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:37:33,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:37:33,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:37:33,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 28 [2021-11-25 19:37:33,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2021-11-25 19:37:33,473 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 8 treesize of output 4 [2021-11-25 19:37:47,401 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:37:47,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 16 case distinctions, treesize of input 263 treesize of output 239 [2021-11-25 19:37:47,543 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:37:47,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 159 treesize of output 151 [2021-11-25 19:37:47,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 126 treesize of output 110 [2021-11-25 19:37:48,298 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 20 proven. 35 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-25 19:37:48,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:37:51,163 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 76449 disjunctions. This might take some time... [2021-11-25 19:46:04,520 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 76449 disjunctions.