./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80f1995-ee92-44c3-b200-05573f5b732a/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80f1995-ee92-44c3-b200-05573f5b732a/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_d80f1995-ee92-44c3-b200-05573f5b732a/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80f1995-ee92-44c3-b200-05573f5b732a/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80f1995-ee92-44c3-b200-05573f5b732a/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_d80f1995-ee92-44c3-b200-05573f5b732a/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 f26a5d85d152e590b5f8a93f229efbb28bdd5e77c34d7106bb5825fc4b732cf6 --- 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 01:50:22,825 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:50:22,828 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:50:22,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:50:22,869 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:50:22,870 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:50:22,871 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:50:22,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:50:22,878 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:50:22,885 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:50:22,887 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:50:22,890 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:50:22,891 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:50:22,893 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:50:22,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:50:22,896 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:50:22,897 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:50:22,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:50:22,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:50:22,901 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:50:22,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:50:22,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:50:22,906 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:50:22,907 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:50:22,911 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:50:22,911 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:50:22,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:50:22,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:50:22,916 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:50:22,919 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:50:22,920 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:50:22,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:50:22,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:50:22,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:50:22,926 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:50:22,926 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:50:22,927 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:50:22,927 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:50:22,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:50:22,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:50:22,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:50:22,930 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80f1995-ee92-44c3-b200-05573f5b732a/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:50:22,971 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:50:22,972 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:50:22,973 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:50:22,973 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:50:22,974 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:50:22,974 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:50:22,974 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:50:22,975 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:50:22,975 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:50:22,975 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:50:22,976 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:50:22,977 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:50:22,977 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:50:22,977 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:50:22,977 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:50:22,978 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:50:22,978 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:50:22,978 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:50:22,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:50:22,979 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:50:22,979 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:50:22,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:50:22,980 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:50:22,980 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:50:22,980 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:50:22,981 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:50:22,981 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:50:22,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:50:22,981 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:50:22,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:50:22,982 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:50:22,982 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:50:22,982 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:50:22,983 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:50:22,983 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:50:22,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:50:22,983 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:50:22,984 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:50:22,984 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_d80f1995-ee92-44c3-b200-05573f5b732a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80f1995-ee92-44c3-b200-05573f5b732a/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f26a5d85d152e590b5f8a93f229efbb28bdd5e77c34d7106bb5825fc4b732cf6 [2022-11-22 01:50:23,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:50:23,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:50:23,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:50:23,266 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:50:23,267 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:50:23,268 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80f1995-ee92-44c3-b200-05573f5b732a/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i [2022-11-22 01:50:26,360 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:50:26,996 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:50:26,997 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80f1995-ee92-44c3-b200-05573f5b732a/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i [2022-11-22 01:50:27,038 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80f1995-ee92-44c3-b200-05573f5b732a/bin/utaipan-g80aRyZoba/data/3b212864f/3d1afd2b463b49249a7f79f48c1761fb/FLAG3a9a75e9c [2022-11-22 01:50:27,053 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80f1995-ee92-44c3-b200-05573f5b732a/bin/utaipan-g80aRyZoba/data/3b212864f/3d1afd2b463b49249a7f79f48c1761fb [2022-11-22 01:50:27,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:50:27,059 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:50:27,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:50:27,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:50:27,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:50:27,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:50:27" (1/1) ... [2022-11-22 01:50:27,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f22e77f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:27, skipping insertion in model container [2022-11-22 01:50:27,069 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:50:27" (1/1) ... [2022-11-22 01:50:27,077 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:50:27,183 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:50:27,440 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_d80f1995-ee92-44c3-b200-05573f5b732a/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i[4497,4510] [2022-11-22 01:50:27,449 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_d80f1995-ee92-44c3-b200-05573f5b732a/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i[4557,4570] [2022-11-22 01:50:28,529 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:28,532 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:28,533 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:28,534 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:28,536 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:28,553 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:28,557 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:28,560 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:28,561 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:29,042 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 01:50:29,043 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 01:50:29,044 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 01:50:29,045 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 01:50:29,047 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 01:50:29,047 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 01:50:29,048 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 01:50:29,049 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 01:50:29,050 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 01:50:29,050 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 01:50:29,208 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 01:50:29,291 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:29,297 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:29,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:50:29,463 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:50:29,489 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_d80f1995-ee92-44c3-b200-05573f5b732a/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i[4497,4510] [2022-11-22 01:50:29,490 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_d80f1995-ee92-44c3-b200-05573f5b732a/sv-benchmarks/c/aws-c-common/aws_byte_cursor_advance_harness.i[4557,4570] [2022-11-22 01:50:29,538 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:29,539 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:29,543 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:29,544 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:29,545 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:29,557 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:29,557 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:29,558 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:29,559 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:29,603 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 01:50:29,605 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 01:50:29,606 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 01:50:29,608 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 01:50:29,608 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 01:50:29,609 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 01:50:29,610 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 01:50:29,611 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 01:50:29,611 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 01:50:29,612 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 01:50:29,637 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 01:50:29,742 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:29,742 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:50:29,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:50:30,134 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:50:30,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:30 WrapperNode [2022-11-22 01:50:30,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:50:30,136 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:50:30,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:50:30,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:50:30,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:30" (1/1) ... [2022-11-22 01:50:30,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:30" (1/1) ... [2022-11-22 01:50:30,312 INFO L138 Inliner]: procedures = 690, calls = 2641, calls flagged for inlining = 60, calls inlined = 7, statements flattened = 881 [2022-11-22 01:50:30,312 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:50:30,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:50:30,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:50:30,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:50:30,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:30" (1/1) ... [2022-11-22 01:50:30,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:30" (1/1) ... [2022-11-22 01:50:30,331 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:30" (1/1) ... [2022-11-22 01:50:30,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:30" (1/1) ... [2022-11-22 01:50:30,361 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:30" (1/1) ... [2022-11-22 01:50:30,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:30" (1/1) ... [2022-11-22 01:50:30,369 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:30" (1/1) ... [2022-11-22 01:50:30,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:30" (1/1) ... [2022-11-22 01:50:30,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:50:30,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:50:30,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:50:30,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:50:30,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:30" (1/1) ... [2022-11-22 01:50:30,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:50:30,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80f1995-ee92-44c3-b200-05573f5b732a/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:50:30,434 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80f1995-ee92-44c3-b200-05573f5b732a/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:50:30,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80f1995-ee92-44c3-b200-05573f5b732a/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:50:30,481 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-11-22 01:50:30,481 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-11-22 01:50:30,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:50:30,482 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-22 01:50:30,482 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-22 01:50:30,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:50:30,483 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-22 01:50:30,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-22 01:50:30,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:50:30,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:50:30,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:50:30,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:50:30,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:50:30,486 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-22 01:50:30,486 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-22 01:50:30,486 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-22 01:50:30,486 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-22 01:50:30,486 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-22 01:50:30,486 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-22 01:50:30,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:50:30,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:50:30,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:50:30,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:50:30,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:50:30,817 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:50:30,820 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:50:32,275 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:50:32,570 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:50:32,570 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 01:50:32,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:50:32 BoogieIcfgContainer [2022-11-22 01:50:32,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:50:32,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:50:32,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:50:32,589 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:50:32,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:50:27" (1/3) ... [2022-11-22 01:50:32,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c0c3471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:50:32, skipping insertion in model container [2022-11-22 01:50:32,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:30" (2/3) ... [2022-11-22 01:50:32,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c0c3471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:50:32, skipping insertion in model container [2022-11-22 01:50:32,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:50:32" (3/3) ... [2022-11-22 01:50:32,595 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_advance_harness.i [2022-11-22 01:50:32,614 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:50:32,615 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:50:32,677 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:50:32,688 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;@17506123, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:50:32,689 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:50:32,695 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 35 states have (on average 1.2) internal successors, (42), 36 states have internal predecessors, (42), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-11-22 01:50:32,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-22 01:50:32,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:32,706 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-22 01:50:32,707 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:50:32,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:32,716 INFO L85 PathProgramCache]: Analyzing trace with hash -145334995, now seen corresponding path program 1 times [2022-11-22 01:50:32,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:32,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51663837] [2022-11-22 01:50:32,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:32,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:46,509 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 01:50:46,510 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:46,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51663837] [2022-11-22 01:50:46,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51663837] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:50:46,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429324233] [2022-11-22 01:50:46,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:46,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:50:46,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80f1995-ee92-44c3-b200-05573f5b732a/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:50:46,519 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80f1995-ee92-44c3-b200-05573f5b732a/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:50:46,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d80f1995-ee92-44c3-b200-05573f5b732a/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:50:50,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:50,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 2515 conjuncts, 119 conjunts are in the unsatisfiable core [2022-11-22 01:50:50,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:50:50,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:50:51,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:50:51,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:50:51,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:50:53,154 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-11-22 01:50:53,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 37 [2022-11-22 01:50:53,352 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:50:53,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 01:50:54,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:54,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 187 [2022-11-22 01:50:54,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:54,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 201 treesize of output 219 [2022-11-22 01:50:54,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 160 [2022-11-22 01:50:54,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:54,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 169 [2022-11-22 01:50:55,100 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-11-22 01:50:55,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-11-22 01:50:55,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 123 [2022-11-22 01:50:55,426 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 21 treesize of output 5 [2022-11-22 01:50:55,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 121 [2022-11-22 01:50:55,571 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 21 treesize of output 5 [2022-11-22 01:50:55,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:55,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 98 [2022-11-22 01:50:55,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 96 [2022-11-22 01:50:55,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 11 [2022-11-22 01:50:55,730 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 67 treesize of output 46 [2022-11-22 01:50:55,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:50:55,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 41 [2022-11-22 01:51:02,372 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:51:02,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 286 treesize of output 278 [2022-11-22 01:51:02,485 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:51:02,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 316 treesize of output 348 [2022-11-22 01:51:02,503 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 113 treesize of output 111 [2022-11-22 01:51:02,531 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:51:02,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 266 treesize of output 258 [2022-11-22 01:51:02,552 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 103 treesize of output 101 [2022-11-22 01:51:03,950 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:51:03,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:51:05,237 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 13430 disjunctions. This might take some time... [2022-11-22 01:51:16,892 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 13413 disjunctions.