./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_init_static_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_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/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_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_init_static_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/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_096f120b-46d0-4196-89db-721e7c6aa838/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 0ba06c24e4863868ad00a49056930e4c556765c875f4e2eef69c939c987b26bc --- 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 00:33:52,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:33:52,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:33:52,856 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:33:52,857 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:33:52,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:33:52,864 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:33:52,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:33:52,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:33:52,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:33:52,876 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:33:52,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:33:52,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:33:52,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:33:52,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:33:52,884 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:33:52,887 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:33:52,888 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:33:52,889 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:33:52,896 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:33:52,897 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:33:52,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:33:52,901 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:33:52,902 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:33:52,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:33:52,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:33:52,913 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:33:52,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:33:52,916 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:33:52,917 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:33:52,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:33:52,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:33:52,921 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:33:52,923 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:33:52,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:33:52,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:33:52,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:33:52,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:33:52,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:33:52,927 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:33:52,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:33:52,929 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 00:33:52,973 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:33:52,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:33:52,974 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:33:52,974 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:33:52,975 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:33:52,976 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:33:52,976 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:33:52,976 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:33:52,977 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:33:52,977 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:33:52,978 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:33:52,978 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:33:52,979 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:33:52,979 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:33:52,979 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:33:52,980 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:33:52,980 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:33:52,980 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:33:52,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:33:52,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:33:52,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:33:52,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:33:52,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:33:52,983 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:33:52,983 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:33:52,983 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:33:52,984 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:33:52,984 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:33:52,985 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:33:52,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:33:52,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:33:52,986 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:33:52,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:33:52,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:33:52,987 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:33:52,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:33:52,987 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:33:52,988 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:33:52,988 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_096f120b-46d0-4196-89db-721e7c6aa838/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ba06c24e4863868ad00a49056930e4c556765c875f4e2eef69c939c987b26bc [2022-11-22 00:33:53,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:33:53,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:33:53,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:33:53,387 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:33:53,387 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:33:53,389 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/aws-c-common/aws_array_list_init_static_harness.i [2022-11-22 00:33:56,424 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:33:56,964 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:33:56,965 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/sv-benchmarks/c/aws-c-common/aws_array_list_init_static_harness.i [2022-11-22 00:33:57,005 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/data/34996295d/708a68c5b8974e008fa96967a9a9dd4b/FLAGd8d024494 [2022-11-22 00:33:57,027 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/data/34996295d/708a68c5b8974e008fa96967a9a9dd4b [2022-11-22 00:33:57,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:33:57,032 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:33:57,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:33:57,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:33:57,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:33:57,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:33:57" (1/1) ... [2022-11-22 00:33:57,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35af1a30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:33:57, skipping insertion in model container [2022-11-22 00:33:57,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:33:57" (1/1) ... [2022-11-22 00:33:57,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:33:57,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:33:57,513 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_096f120b-46d0-4196-89db-721e7c6aa838/sv-benchmarks/c/aws-c-common/aws_array_list_init_static_harness.i[4500,4513] [2022-11-22 00:33:57,522 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_096f120b-46d0-4196-89db-721e7c6aa838/sv-benchmarks/c/aws-c-common/aws_array_list_init_static_harness.i[4560,4573] [2022-11-22 00:33:58,370 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 00:33:58,456 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:33:58,467 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:33:58,476 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:33:58,477 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:33:58,478 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:33:58,493 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:33:58,497 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:33:58,499 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:33:58,501 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:33:58,503 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:33:58,506 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:33:58,507 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:33:58,510 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:33:58,883 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 00:33:58,885 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 00:33:58,886 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 00:33:58,887 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 00:33:58,888 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 00:33:58,889 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 00:33:58,890 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 00:33:58,891 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 00:33:58,901 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 00:33:58,903 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 00:33:59,089 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:33:59,111 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:33:59,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:33:59,149 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:33:59,184 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_096f120b-46d0-4196-89db-721e7c6aa838/sv-benchmarks/c/aws-c-common/aws_array_list_init_static_harness.i[4500,4513] [2022-11-22 00:33:59,185 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_096f120b-46d0-4196-89db-721e7c6aa838/sv-benchmarks/c/aws-c-common/aws_array_list_init_static_harness.i[4560,4573] [2022-11-22 00:33:59,241 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 00:33:59,278 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:33:59,281 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:33:59,282 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:33:59,282 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:33:59,283 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:33:59,293 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:33:59,294 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:33:59,296 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:33:59,297 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:33:59,298 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:33:59,299 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:33:59,299 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:33:59,301 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:33:59,355 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 00:33:59,356 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 00:33:59,357 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 00:33:59,358 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 00:33:59,361 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 00:33:59,362 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 00:33:59,363 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 00:33:59,363 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 00:33:59,365 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 00:33:59,402 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 00:33:59,439 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:33:59,457 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 00:33:59,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:33:59,652 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:33:59,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:33:59 WrapperNode [2022-11-22 00:33:59,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:33:59,654 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:33:59,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:33:59,655 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:33:59,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:33:59" (1/1) ... [2022-11-22 00:33:59,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:33:59" (1/1) ... [2022-11-22 00:33:59,830 INFO L138 Inliner]: procedures = 681, calls = 1245, calls flagged for inlining = 53, calls inlined = 9, statements flattened = 157 [2022-11-22 00:33:59,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:33:59,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:33:59,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:33:59,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:33:59,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:33:59" (1/1) ... [2022-11-22 00:33:59,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:33:59" (1/1) ... [2022-11-22 00:33:59,861 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:33:59" (1/1) ... [2022-11-22 00:33:59,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:33:59" (1/1) ... [2022-11-22 00:33:59,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:33:59" (1/1) ... [2022-11-22 00:33:59,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:33:59" (1/1) ... [2022-11-22 00:33:59,917 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:33:59" (1/1) ... [2022-11-22 00:33:59,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:33:59" (1/1) ... [2022-11-22 00:33:59,924 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:33:59,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:33:59,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:33:59,926 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:33:59,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:33:59" (1/1) ... [2022-11-22 00:33:59,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:33:59,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:33:59,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:33:59,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:34:00,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:34:00,008 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-22 00:34:00,008 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-22 00:34:00,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 00:34:00,008 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-22 00:34:00,008 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-22 00:34:00,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-22 00:34:00,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-22 00:34:00,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 00:34:00,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:34:00,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 00:34:00,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:34:00,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:34:00,011 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-22 00:34:00,011 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-22 00:34:00,011 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-22 00:34:00,011 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-22 00:34:00,011 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-22 00:34:00,012 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-22 00:34:00,012 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-22 00:34:00,013 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-22 00:34:00,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:34:00,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 00:34:00,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 00:34:00,014 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-22 00:34:00,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-22 00:34:00,014 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-22 00:34:00,014 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-22 00:34:00,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:34:00,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:34:00,323 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:34:00,325 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:34:00,810 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:34:00,896 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:34:00,896 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 00:34:00,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:34:00 BoogieIcfgContainer [2022-11-22 00:34:00,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:34:00,902 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:34:00,902 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:34:00,911 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:34:00,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:33:57" (1/3) ... [2022-11-22 00:34:00,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a2b8d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:34:00, skipping insertion in model container [2022-11-22 00:34:00,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:33:59" (2/3) ... [2022-11-22 00:34:00,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a2b8d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:34:00, skipping insertion in model container [2022-11-22 00:34:00,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:34:00" (3/3) ... [2022-11-22 00:34:00,915 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_init_static_harness.i [2022-11-22 00:34:00,934 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:34:00,934 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 00:34:00,999 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:34:01,011 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;@3e74cac5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:34:01,012 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 00:34:01,016 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 44 states have (on average 1.1590909090909092) internal successors, (51), 45 states have internal predecessors, (51), 30 states have call successors, (30), 9 states have call predecessors, (30), 9 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-22 00:34:01,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-22 00:34:01,029 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:34:01,030 INFO L195 NwaCegarLoop]: trace histogram [9, 2, 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] [2022-11-22 00:34:01,032 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:34:01,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:34:01,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1663978418, now seen corresponding path program 1 times [2022-11-22 00:34:01,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:34:01,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992178588] [2022-11-22 00:34:01,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:01,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:34:01,345 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 00:34:01,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [715761123] [2022-11-22 00:34:01,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:01,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:34:01,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:34:01,351 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:34:01,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 00:34:01,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:34:01,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 00:34:01,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:34:01,886 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2022-11-22 00:34:01,886 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:34:01,887 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:34:01,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992178588] [2022-11-22 00:34:01,888 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 00:34:01,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715761123] [2022-11-22 00:34:01,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715761123] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:34:01,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:34:01,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 00:34:01,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818238383] [2022-11-22 00:34:01,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:34:01,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 00:34:01,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:34:01,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 00:34:01,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:34:01,947 INFO L87 Difference]: Start difference. First operand has 85 states, 44 states have (on average 1.1590909090909092) internal successors, (51), 45 states have internal predecessors, (51), 30 states have call successors, (30), 9 states have call predecessors, (30), 9 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-22 00:34:02,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:34:02,254 INFO L93 Difference]: Finished difference Result 145 states and 194 transitions. [2022-11-22 00:34:02,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 00:34:02,257 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 65 [2022-11-22 00:34:02,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:34:02,267 INFO L225 Difference]: With dead ends: 145 [2022-11-22 00:34:02,267 INFO L226 Difference]: Without dead ends: 80 [2022-11-22 00:34:02,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:34:02,274 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 36 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:34:02,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 355 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 00:34:02,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-11-22 00:34:02,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2022-11-22 00:34:02,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 41 states have (on average 1.0975609756097562) internal successors, (45), 42 states have internal predecessors, (45), 30 states have call successors, (30), 9 states have call predecessors, (30), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2022-11-22 00:34:02,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 103 transitions. [2022-11-22 00:34:02,351 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 103 transitions. Word has length 65 [2022-11-22 00:34:02,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:34:02,353 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 103 transitions. [2022-11-22 00:34:02,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-22 00:34:02,355 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 103 transitions. [2022-11-22 00:34:02,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-22 00:34:02,360 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:34:02,361 INFO L195 NwaCegarLoop]: trace histogram [9, 3, 3, 3, 3, 3, 3, 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 00:34:02,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 00:34:02,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-22 00:34:02,568 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:34:02,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:34:02,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1491149490, now seen corresponding path program 1 times [2022-11-22 00:34:02,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:34:02,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753162445] [2022-11-22 00:34:02,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:02,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:34:02,670 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 00:34:02,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1074137468] [2022-11-22 00:34:02,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:34:02,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:34:02,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:34:02,672 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:34:02,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 00:34:03,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:34:03,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 215 conjunts are in the unsatisfiable core [2022-11-22 00:34:03,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:34:03,391 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 00:34:03,815 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 17 treesize of output 9 [2022-11-22 00:34:04,280 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 00:34:19,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:19,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:19,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:34:19,381 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:34:19,387 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 00:34:19,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 92 treesize of output 92 [2022-11-22 00:34:19,478 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 00:34:22,766 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 166 treesize of output 154 [2022-11-22 00:34:37,950 WARN L233 SmtUtils]: Spent 10.58s on a formula simplification. DAG size of input: 70 DAG size of output: 65 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:34:38,470 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 00:34:38,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 3 case distinctions, treesize of input 302 treesize of output 432 [2022-11-22 00:34:38,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 264 [2022-11-22 00:34:39,611 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 13 proven. 60 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-22 00:34:39,611 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:34:49,093 WARN L233 SmtUtils]: Spent 5.92s on a formula simplification. DAG size of input: 386 DAG size of output: 180 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:34:50,681 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 28 treesize of output 16 [2022-11-22 00:35:17,264 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:35:17,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753162445] [2022-11-22 00:35:17,264 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 00:35:17,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074137468] [2022-11-22 00:35:17,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074137468] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:35:17,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [842849254] [2022-11-22 00:35:17,287 INFO L159 IcfgInterpreter]: Started Sifa with 45 locations of interest [2022-11-22 00:35:17,288 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:35:17,292 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:35:17,300 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:35:17,300 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:35:17,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:17,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:17,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:17,466 INFO L321 Elim1Store]: treesize reduction 66, result has 39.4 percent of original size [2022-11-22 00:35:17,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 30 treesize of output 65 [2022-11-22 00:35:17,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:17,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:17,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:17,606 INFO L321 Elim1Store]: treesize reduction 116, result has 26.1 percent of original size [2022-11-22 00:35:17,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 49 treesize of output 81 [2022-11-22 00:35:18,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-22 00:35:18,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-22 00:35:18,080 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 00:35:18,087 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 15 treesize of output 1 [2022-11-22 00:35:18,094 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 15 treesize of output 1 [2022-11-22 00:35:18,120 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 15 treesize of output 1 [2022-11-22 00:35:18,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:18,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:18,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:18,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:18,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:18,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:18,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:18,291 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:35:18,341 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-22 00:35:18,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 60 treesize of output 22 [2022-11-22 00:35:18,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:18,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:18,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:18,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:18,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:18,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:18,450 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:35:18,511 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2022-11-22 00:35:18,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 60 treesize of output 26 [2022-11-22 00:35:18,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:18,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:18,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:18,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 18 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-11-22 00:35:18,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:18,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:18,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:18,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 22 [2022-11-22 00:35:18,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:18,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:18,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:18,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:18,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:18,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:18,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:18,934 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:35:18,978 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2022-11-22 00:35:18,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 60 treesize of output 26 [2022-11-22 00:35:19,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:19,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:19,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:19,012 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 18 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-11-22 00:35:19,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:19,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:19,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:19,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:19,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:19,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 22 [2022-11-22 00:35:19,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:19,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:19,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:19,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 22 [2022-11-22 00:35:19,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 7 [2022-11-22 00:35:19,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-22 00:35:19,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-22 00:35:19,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-22 00:35:20,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-22 00:35:20,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-22 00:35:20,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:20,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-22 00:35:21,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:21,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-22 00:35:24,341 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 11 treesize of output 7 [2022-11-22 00:35:24,354 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 15 treesize of output 1 [2022-11-22 00:35:24,368 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 15 treesize of output 1 [2022-11-22 00:35:24,384 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 11 treesize of output 7 [2022-11-22 00:35:24,518 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 7 treesize of output 3 [2022-11-22 00:35:24,605 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 7 treesize of output 3 [2022-11-22 00:35:24,778 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 7 treesize of output 3 [2022-11-22 00:35:24,864 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 7 treesize of output 3 [2022-11-22 00:35:25,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:35:25,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2022-11-22 00:35:25,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 [2022-11-22 00:35:25,468 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 24 treesize of output 9 [2022-11-22 00:35:25,536 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 19 treesize of output 1 [2022-11-22 00:35:25,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 [2022-11-22 00:35:25,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-22 00:35:25,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-22 00:35:25,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-22 00:35:25,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-22 00:35:25,845 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:35:25,845 INFO L350 Elim1Store]: Elim1 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 26 treesize of output 38 [2022-11-22 00:35:25,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-22 00:35:25,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-22 00:35:25,907 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:35:25,907 INFO L350 Elim1Store]: Elim1 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 26 treesize of output 38 [2022-11-22 00:35:25,966 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 00:35:26,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-22 00:35:26,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-22 00:35:26,213 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 3 [2022-11-22 00:35:26,227 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 3 [2022-11-22 00:35:26,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 12 [2022-11-22 00:35:26,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 12 [2022-11-22 00:35:26,382 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 3 [2022-11-22 00:35:26,396 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 3 [2022-11-22 00:35:26,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-22 00:35:26,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-22 00:35:26,947 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 13 for LOIs [2022-11-22 00:35:26,959 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_is_valid with input of size 107 for LOIs [2022-11-22 00:35:27,132 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 00:35:27,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-11-22 00:35:27,156 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-22 00:35:27,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 00:35:27,327 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 00:35:27,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-11-22 00:35:27,354 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-22 00:35:27,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 00:35:27,532 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 00:35:27,687 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 00:35:27,687 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-11-22 00:35:27,716 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-22 00:35:27,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 00:35:27,740 INFO L197 IcfgInterpreter]: Interpreting procedure aws_mul_size_checked with input of size 19 for LOIs [2022-11-22 00:35:27,808 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 15 treesize of output 1 [2022-11-22 00:35:27,815 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 15 treesize of output 1 [2022-11-22 00:35:27,825 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 00:35:27,834 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 15 treesize of output 1 [2022-11-22 00:35:27,860 INFO L197 IcfgInterpreter]: Interpreting procedure __CPROVER_overflow_mult with input of size 19 for LOIs [2022-11-22 00:35:27,867 INFO L197 IcfgInterpreter]: Interpreting procedure bounded_malloc with input of size 78 for LOIs [2022-11-22 00:35:28,038 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 13 for LOIs [2022-11-22 00:35:28,040 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:36:11,165 WARN L233 SmtUtils]: Spent 8.20s on a formula simplification. DAG size of input: 97 DAG size of output: 91 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:36:21,308 WARN L233 SmtUtils]: Spent 8.06s on a formula simplification. DAG size of input: 128 DAG size of output: 120 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:37:04,792 WARN L233 SmtUtils]: Spent 35.61s on a formula simplification. DAG size of input: 138 DAG size of output: 115 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:37:41,873 WARN L233 SmtUtils]: Spent 30.18s on a formula simplification. DAG size of input: 160 DAG size of output: 137 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:38:30,547 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '896#(and (= |~#s_can_fail_allocator_static~0.base| 4) (= (mod __VERIFIER_assert_~cond 256) 0) (= |~#s_can_fail_allocator_static~0.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 00:38:30,548 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:38:30,548 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-22 00:38:30,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2022-11-22 00:38:30,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336150513] [2022-11-22 00:38:30,548 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-22 00:38:30,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-22 00:38:30,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:38:30,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-22 00:38:30,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=322, Invalid=5347, Unknown=31, NotChecked=0, Total=5700 [2022-11-22 00:38:30,552 INFO L87 Difference]: Start difference. First operand 80 states and 103 transitions. Second operand has 34 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 28 states have internal predecessors, (34), 13 states have call successors, (18), 5 states have call predecessors, (18), 10 states have return successors, (17), 14 states have call predecessors, (17), 12 states have call successors, (17) [2022-11-22 00:38:34,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:38:37,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:38:41,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:38:46,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:38:49,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:38:54,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:39:11,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:39:14,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:39:16,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:39:22,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:39:25,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:39:30,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:39:36,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:39:38,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:39:40,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:39:43,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:39:47,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:39:50,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:39:52,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:39:54,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:39:59,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:40:01,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:40:06,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:40:14,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:40:18,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:40:20,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:40:21,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:40:24,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:40:29,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:40:29,942 INFO L93 Difference]: Finished difference Result 223 states and 311 transitions. [2022-11-22 00:40:29,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-22 00:40:29,943 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 28 states have internal predecessors, (34), 13 states have call successors, (18), 5 states have call predecessors, (18), 10 states have return successors, (17), 14 states have call predecessors, (17), 12 states have call successors, (17) Word has length 74 [2022-11-22 00:40:29,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:40:29,947 INFO L225 Difference]: With dead ends: 223 [2022-11-22 00:40:29,947 INFO L226 Difference]: Without dead ends: 221 [2022-11-22 00:40:29,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 77 SyntacticMatches, 4 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3274 ImplicationChecksByTransitivity, 259.7s TimeCoverageRelationStatistics Valid=583, Invalid=9889, Unknown=34, NotChecked=0, Total=10506 [2022-11-22 00:40:29,952 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 372 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 3605 mSolverCounterSat, 483 mSolverCounterUnsat, 32 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 91.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 4120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 483 IncrementalHoareTripleChecker+Valid, 3605 IncrementalHoareTripleChecker+Invalid, 32 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 92.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:40:29,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 523 Invalid, 4120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [483 Valid, 3605 Invalid, 32 Unknown, 0 Unchecked, 92.2s Time] [2022-11-22 00:40:29,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-11-22 00:40:30,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 149. [2022-11-22 00:40:30,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 78 states have (on average 1.1025641025641026) internal successors, (86), 80 states have internal predecessors, (86), 53 states have call successors, (53), 16 states have call predecessors, (53), 17 states have return successors, (60), 52 states have call predecessors, (60), 51 states have call successors, (60) [2022-11-22 00:40:30,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 199 transitions. [2022-11-22 00:40:30,003 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 199 transitions. Word has length 74 [2022-11-22 00:40:30,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:40:30,004 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 199 transitions. [2022-11-22 00:40:30,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 28 states have internal predecessors, (34), 13 states have call successors, (18), 5 states have call predecessors, (18), 10 states have return successors, (17), 14 states have call predecessors, (17), 12 states have call successors, (17) [2022-11-22 00:40:30,004 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 199 transitions. [2022-11-22 00:40:30,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-22 00:40:30,006 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:40:30,006 INFO L195 NwaCegarLoop]: trace histogram [9, 3, 3, 3, 3, 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, 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 00:40:30,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 00:40:30,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:40:30,207 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:40:30,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:40:30,208 INFO L85 PathProgramCache]: Analyzing trace with hash -100496781, now seen corresponding path program 1 times [2022-11-22 00:40:30,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:40:30,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146655936] [2022-11-22 00:40:30,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:40:30,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:40:30,301 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 00:40:30,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1781880748] [2022-11-22 00:40:30,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:40:30,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:40:30,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:40:30,306 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:40:30,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 00:40:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:40:30,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 691 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-22 00:40:30,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:40:30,733 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-22 00:40:30,733 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:40:31,136 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-11-22 00:40:31,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:40:31,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146655936] [2022-11-22 00:40:31,136 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 00:40:31,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781880748] [2022-11-22 00:40:31,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781880748] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:40:31,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1088986200] [2022-11-22 00:40:31,140 INFO L159 IcfgInterpreter]: Started Sifa with 49 locations of interest [2022-11-22 00:40:31,141 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:40:31,141 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:40:31,141 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:40:31,142 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:40:31,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:31,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:31,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:31,250 INFO L321 Elim1Store]: treesize reduction 66, result has 39.4 percent of original size [2022-11-22 00:40:31,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 30 treesize of output 65 [2022-11-22 00:40:31,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:31,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:31,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:31,370 INFO L321 Elim1Store]: treesize reduction 116, result has 26.1 percent of original size [2022-11-22 00:40:31,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 49 treesize of output 81 [2022-11-22 00:40:31,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-22 00:40:31,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-22 00:40:31,812 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 15 treesize of output 1 [2022-11-22 00:40:31,818 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 00:40:31,827 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 15 treesize of output 1 [2022-11-22 00:40:31,834 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 15 treesize of output 1 [2022-11-22 00:40:31,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:31,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:31,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:31,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:31,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:31,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:31,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:31,982 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:40:31,999 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2022-11-22 00:40:32,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 60 treesize of output 26 [2022-11-22 00:40:32,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:32,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:32,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:32,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 18 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-11-22 00:40:32,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:32,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:32,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:32,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 22 [2022-11-22 00:40:32,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:32,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:32,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:32,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:32,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:32,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 22 [2022-11-22 00:40:32,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:32,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:32,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:32,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:32,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:32,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:32,258 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:40:32,266 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-22 00:40:32,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 60 treesize of output 22 [2022-11-22 00:40:32,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:32,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:32,290 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 00:40:32,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 20 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 22 [2022-11-22 00:40:32,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:32,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:32,339 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 00:40:32,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 19 [2022-11-22 00:40:32,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:32,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:32,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:32,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:32,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:32,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:32,375 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:40:32,390 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2022-11-22 00:40:32,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 60 treesize of output 26 [2022-11-22 00:40:32,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 7 [2022-11-22 00:40:32,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-22 00:40:32,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:32,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-22 00:40:32,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:40:32,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-22 00:40:33,026 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 11 treesize of output 7 [2022-11-22 00:40:33,041 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 15 treesize of output 1 [2022-11-22 00:40:33,055 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 15 treesize of output 1 [2022-11-22 00:40:33,074 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 11 treesize of output 7 [2022-11-22 00:40:33,212 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 7 treesize of output 3 [2022-11-22 00:40:33,316 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 7 treesize of output 3 [2022-11-22 00:40:33,408 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 7 treesize of output 3 [2022-11-22 00:40:33,431 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 7 treesize of output 3 [2022-11-22 00:40:33,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-22 00:40:33,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 [2022-11-22 00:40:33,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 [2022-11-22 00:40:33,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-22 00:40:33,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-22 00:40:33,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-22 00:40:33,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-22 00:40:33,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-22 00:40:33,801 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:40:33,801 INFO L350 Elim1Store]: Elim1 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 26 treesize of output 38 [2022-11-22 00:40:33,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-22 00:40:33,892 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:40:33,893 INFO L350 Elim1Store]: Elim1 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 26 treesize of output 38 [2022-11-22 00:40:33,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-22 00:40:33,960 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 00:40:34,076 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 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-22 00:40:34,090 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 3 [2022-11-22 00:40:34,099 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 3 [2022-11-22 00:40:34,310 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 3 [2022-11-22 00:40:34,459 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 3 [2022-11-22 00:40:34,473 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 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-22 00:40:34,892 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 13 for LOIs [2022-11-22 00:40:34,897 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_is_valid with input of size 50 for LOIs [2022-11-22 00:40:34,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-22 00:40:34,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-22 00:40:35,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-22 00:40:35,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-22 00:40:35,259 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 00:40:35,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-22 00:40:35,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-22 00:40:35,374 INFO L197 IcfgInterpreter]: Interpreting procedure aws_mul_size_checked with input of size 19 for LOIs [2022-11-22 00:40:35,445 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 15 treesize of output 1 [2022-11-22 00:40:35,457 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 00:40:35,468 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 15 treesize of output 1 [2022-11-22 00:40:35,476 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 15 treesize of output 1 [2022-11-22 00:40:35,710 INFO L197 IcfgInterpreter]: Interpreting procedure __CPROVER_overflow_mult with input of size 19 for LOIs [2022-11-22 00:40:35,717 INFO L197 IcfgInterpreter]: Interpreting procedure aws_raise_error with input of size 32 for LOIs [2022-11-22 00:40:35,725 INFO L197 IcfgInterpreter]: Interpreting procedure bounded_malloc with input of size 28 for LOIs [2022-11-22 00:40:35,782 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 41 for LOIs [2022-11-22 00:40:35,797 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:40:46,693 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2028#(and (= |~#s_can_fail_allocator_static~0.base| 4) (= (mod __VERIFIER_assert_~cond 256) 0) (= |~#s_can_fail_allocator_static~0.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 00:40:46,694 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:40:46,694 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 00:40:46,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2022-11-22 00:40:46,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186332039] [2022-11-22 00:40:46,694 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 00:40:46,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 00:40:46,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:40:46,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 00:40:46,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=3211, Unknown=0, NotChecked=0, Total=3422 [2022-11-22 00:40:46,696 INFO L87 Difference]: Start difference. First operand 149 states and 199 transitions. Second operand has 17 states, 10 states have (on average 4.3) internal successors, (43), 12 states have internal predecessors, (43), 5 states have call successors, (22), 3 states have call predecessors, (22), 7 states have return successors, (23), 7 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-22 00:40:47,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:40:47,163 INFO L93 Difference]: Finished difference Result 212 states and 274 transitions. [2022-11-22 00:40:47,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-22 00:40:47,164 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 10 states have (on average 4.3) internal successors, (43), 12 states have internal predecessors, (43), 5 states have call successors, (22), 3 states have call predecessors, (22), 7 states have return successors, (23), 7 states have call predecessors, (23), 4 states have call successors, (23) Word has length 78 [2022-11-22 00:40:47,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:40:47,166 INFO L225 Difference]: With dead ends: 212 [2022-11-22 00:40:47,166 INFO L226 Difference]: Without dead ends: 150 [2022-11-22 00:40:47,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 170 SyntacticMatches, 5 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 748 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=219, Invalid=3441, Unknown=0, NotChecked=0, Total=3660 [2022-11-22 00:40:47,169 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 3 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1173 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 00:40:47,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1173 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 00:40:47,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-22 00:40:47,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 149. [2022-11-22 00:40:47,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 78 states have (on average 1.1025641025641026) internal successors, (86), 80 states have internal predecessors, (86), 53 states have call successors, (53), 16 states have call predecessors, (53), 17 states have return successors, (58), 52 states have call predecessors, (58), 51 states have call successors, (58) [2022-11-22 00:40:47,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 197 transitions. [2022-11-22 00:40:47,214 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 197 transitions. Word has length 78 [2022-11-22 00:40:47,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:40:47,214 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 197 transitions. [2022-11-22 00:40:47,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 10 states have (on average 4.3) internal successors, (43), 12 states have internal predecessors, (43), 5 states have call successors, (22), 3 states have call predecessors, (22), 7 states have return successors, (23), 7 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-22 00:40:47,215 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 197 transitions. [2022-11-22 00:40:47,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-22 00:40:47,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:40:47,217 INFO L195 NwaCegarLoop]: trace histogram [9, 3, 3, 3, 3, 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, 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 00:40:47,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 00:40:47,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:40:47,423 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:40:47,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:40:47,423 INFO L85 PathProgramCache]: Analyzing trace with hash -721511181, now seen corresponding path program 2 times [2022-11-22 00:40:47,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:40:47,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080362575] [2022-11-22 00:40:47,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:40:47,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:40:47,517 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 00:40:47,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1776044403] [2022-11-22 00:40:47,518 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 00:40:47,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:40:47,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:40:47,519 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:40:47,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 00:40:48,209 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-11-22 00:40:48,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:40:48,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-22 00:40:48,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:40:48,282 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-22 00:40:48,282 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:40:48,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:40:48,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080362575] [2022-11-22 00:40:48,283 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 00:40:48,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776044403] [2022-11-22 00:40:48,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776044403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:40:48,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:40:48,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-22 00:40:48,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919500982] [2022-11-22 00:40:48,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:40:48,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 00:40:48,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:40:48,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 00:40:48,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:40:48,285 INFO L87 Difference]: Start difference. First operand 149 states and 197 transitions. Second operand has 8 states, 5 states have (on average 6.2) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-22 00:40:48,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:40:48,509 INFO L93 Difference]: Finished difference Result 224 states and 290 transitions. [2022-11-22 00:40:48,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 00:40:48,510 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 6.2) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 78 [2022-11-22 00:40:48,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:40:48,515 INFO L225 Difference]: With dead ends: 224 [2022-11-22 00:40:48,516 INFO L226 Difference]: Without dead ends: 143 [2022-11-22 00:40:48,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-22 00:40:48,522 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 1 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:40:48,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 560 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 00:40:48,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2022-11-22 00:40:48,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2022-11-22 00:40:48,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 74 states have (on average 1.0945945945945945) internal successors, (81), 77 states have internal predecessors, (81), 51 states have call successors, (51), 16 states have call predecessors, (51), 17 states have return successors, (55), 49 states have call predecessors, (55), 49 states have call successors, (55) [2022-11-22 00:40:48,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 187 transitions. [2022-11-22 00:40:48,593 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 187 transitions. Word has length 78 [2022-11-22 00:40:48,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:40:48,594 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 187 transitions. [2022-11-22 00:40:48,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 6.2) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-22 00:40:48,595 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 187 transitions. [2022-11-22 00:40:48,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-22 00:40:48,604 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:40:48,605 INFO L195 NwaCegarLoop]: trace histogram [10, 3, 3, 3, 3, 3, 3, 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 00:40:48,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 00:40:48,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:40:48,810 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:40:48,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:40:48,810 INFO L85 PathProgramCache]: Analyzing trace with hash 445763885, now seen corresponding path program 1 times [2022-11-22 00:40:48,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:40:48,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182190187] [2022-11-22 00:40:48,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:40:48,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:40:48,857 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-22 00:40:48,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [677190000] [2022-11-22 00:40:48,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:40:48,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:40:48,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:40:48,859 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:40:48,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096f120b-46d0-4196-89db-721e7c6aa838/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 00:40:49,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:40:49,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 216 conjunts are in the unsatisfiable core [2022-11-22 00:40:49,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:40:49,540 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 00:40:49,934 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 17 treesize of output 9 [2022-11-22 00:41:14,044 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 00:41:42,746 WARN L233 SmtUtils]: Spent 5.71s on a formula simplification that was a NOOP. DAG size: 47 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:41:42,817 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 00:41:42,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:41:42,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:41:42,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:41:42,844 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:41:42,849 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 00:41:42,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 107 treesize of output 107 [2022-11-22 00:42:07,470 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 166 treesize of output 154 [2022-11-22 00:42:10,518 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int| |c_aws_array_list_is_valid_#in~list.base|))) (let ((.cse2 (= |c_aws_array_list_is_valid_#res| 0)) (.cse0 (mod (select .cse4 (+ |c_aws_array_list_is_valid_#in~list.offset| 8)) 18446744073709551616)) (.cse1 (select (select |c_old(#memory_int)| |c_aws_array_list_is_valid_#in~list.base|) (+ |c_aws_array_list_is_valid_#in~list.offset| 16)))) (or (and (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~b#1| Int) (v_ArrVal_730 Int) (|v_aws_array_list_is_valid_~#required_size~0.base_33| Int)) (and (not (<= (mod (select (select |c_#memory_int| |v_aws_array_list_is_valid_~#required_size~0.base_33|) 0) 18446744073709551616) .cse0)) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |v_aws_array_list_is_valid_~#required_size~0.base_33| (store (select |c_old(#memory_$Pointer$.base)| |v_aws_array_list_is_valid_~#required_size~0.base_33|) 0 v_ArrVal_730))) (= |c_#memory_int| (store |c_old(#memory_int)| |v_aws_array_list_is_valid_~#required_size~0.base_33| (store (select |c_old(#memory_int)| |v_aws_array_list_is_valid_~#required_size~0.base_33|) 0 (* .cse1 |aws_mul_size_checked_aws_mul_u64_checked_~b#1|)))))) .cse2) (and (let ((.cse3 (= (mod (select .cse4 (+ |c_aws_array_list_is_valid_#in~list.offset| 24)) 18446744073709551616) 0))) (or (and (not .cse3) (or (= |c_aws_array_list_is_valid_#res| 1) (and (= (select (select |c_#memory_$Pointer$.base| |c_aws_array_list_is_valid_#in~list.base|) (+ 32 |c_aws_array_list_is_valid_#in~list.offset|)) 0) (not (= 0 .cse0)) .cse2))) (and .cse2 .cse3))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~b#1| Int) (v_ArrVal_730 Int) (|v_aws_array_list_is_valid_~#required_size~0.base_33| Int)) (and (<= (mod (select (select |c_#memory_int| |v_aws_array_list_is_valid_~#required_size~0.base_33|) 0) 18446744073709551616) .cse0) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |v_aws_array_list_is_valid_~#required_size~0.base_33| (store (select |c_old(#memory_$Pointer$.base)| |v_aws_array_list_is_valid_~#required_size~0.base_33|) 0 v_ArrVal_730))) (= |c_#memory_int| (store |c_old(#memory_int)| |v_aws_array_list_is_valid_~#required_size~0.base_33| (store (select |c_old(#memory_int)| |v_aws_array_list_is_valid_~#required_size~0.base_33|) 0 (* .cse1 |aws_mul_size_checked_aws_mul_u64_checked_~b#1|)))))))))) is different from true [2022-11-22 00:42:10,762 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 00:42:10,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 257 treesize of output 268 [2022-11-22 00:42:11,006 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 145 [2022-11-22 00:42:12,602 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 20 proven. 24 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-11-22 00:42:12,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:42:28,735 WARN L233 SmtUtils]: Spent 5.96s on a formula simplification. DAG size of input: 382 DAG size of output: 178 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:42:31,016 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 43 treesize of output 25 [2022-11-22 00:42:57,899 WARN L233 SmtUtils]: Spent 9.25s on a formula simplification. DAG size of input: 58 DAG size of output: 52 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:42:57,901 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:42:57,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182190187] [2022-11-22 00:42:57,901 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-22 00:42:57,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677190000] [2022-11-22 00:42:57,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [677190000] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:42:57,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [128979072] [2022-11-22 00:42:57,904 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2022-11-22 00:42:57,905 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:42:57,905 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:42:57,905 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:42:57,905 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:42:57,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:57,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:57,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:58,013 INFO L321 Elim1Store]: treesize reduction 66, result has 39.4 percent of original size [2022-11-22 00:42:58,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 30 treesize of output 65 [2022-11-22 00:42:58,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:58,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:58,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:58,134 INFO L321 Elim1Store]: treesize reduction 116, result has 26.1 percent of original size [2022-11-22 00:42:58,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 49 treesize of output 81 [2022-11-22 00:42:58,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-22 00:42:58,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-22 00:42:58,518 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 00:42:58,524 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 15 treesize of output 1 [2022-11-22 00:42:58,530 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 15 treesize of output 1 [2022-11-22 00:42:58,538 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 15 treesize of output 1 [2022-11-22 00:42:58,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:58,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:58,689 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 00:42:58,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 19 [2022-11-22 00:42:58,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:58,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:58,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:58,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:58,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:58,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:58,810 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:42:58,857 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-22 00:42:58,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 60 treesize of output 22 [2022-11-22 00:42:58,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:58,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:58,932 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 00:42:58,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 20 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 22 [2022-11-22 00:42:58,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:58,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:58,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:58,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:58,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:58,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:58,961 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:42:58,976 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2022-11-22 00:42:58,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 60 treesize of output 26 [2022-11-22 00:42:59,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:59,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:59,116 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 00:42:59,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 20 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 22 [2022-11-22 00:42:59,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:59,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:59,147 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 00:42:59,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 19 [2022-11-22 00:42:59,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:59,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:59,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:59,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:59,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:59,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:59,262 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:42:59,391 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2022-11-22 00:42:59,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 60 treesize of output 26 [2022-11-22 00:42:59,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:59,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:59,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:59,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:59,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:42:59,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 22 [2022-11-22 00:42:59,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-22 00:42:59,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 7 [2022-11-22 00:42:59,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-22 00:42:59,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-22 00:43:00,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-22 00:43:00,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-22 00:43:00,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:43:00,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-22 00:43:00,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:43:00,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-22 00:43:00,508 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 15 treesize of output 1 [2022-11-22 00:43:00,525 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 15 treesize of output 1 [2022-11-22 00:43:00,544 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:43:00,569 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 00:43:00,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 52 [2022-11-22 00:43:00,673 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 15 treesize of output 1 [2022-11-22 00:43:01,164 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 19 treesize of output 1 [2022-11-22 00:43:01,170 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 19 treesize of output 1 [2022-11-22 00:43:01,198 INFO L321 Elim1Store]: treesize reduction 41, result has 14.6 percent of original size [2022-11-22 00:43:01,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 42 [2022-11-22 00:43:01,210 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 19 treesize of output 1 [2022-11-22 00:43:01,644 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 11 treesize of output 7 [2022-11-22 00:43:01,662 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 15 treesize of output 1 [2022-11-22 00:43:01,691 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:43:01,779 INFO L321 Elim1Store]: treesize reduction 50, result has 43.8 percent of original size [2022-11-22 00:43:01,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 56 treesize of output 69 [2022-11-22 00:43:01,835 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 11 treesize of output 7 [2022-11-22 00:43:02,173 INFO L321 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2022-11-22 00:43:02,174 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 28 treesize of output 3 [2022-11-22 00:43:02,239 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 0 case distinctions, treesize of input 28 treesize of output 3 [2022-11-22 00:43:02,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2022-11-22 00:43:02,405 INFO L321 Elim1Store]: treesize reduction 11, result has 42.1 percent of original size [2022-11-22 00:43:02,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 105 treesize of output 60 [2022-11-22 00:43:02,479 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 7 treesize of output 3 [2022-11-22 00:43:02,544 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 7 treesize of output 3 [2022-11-22 00:43:02,883 INFO L321 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2022-11-22 00:43:02,883 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 28 treesize of output 3 [2022-11-22 00:43:02,948 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 30 treesize of output 18 [2022-11-22 00:43:03,009 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 0 case distinctions, treesize of input 28 treesize of output 3 [2022-11-22 00:43:03,069 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2022-11-22 00:43:03,137 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-22 00:43:03,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 64 [2022-11-22 00:43:03,246 INFO L321 Elim1Store]: treesize reduction 11, result has 42.1 percent of original size [2022-11-22 00:43:03,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 105 treesize of output 60 [2022-11-22 00:43:03,322 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 7 treesize of output 3 [2022-11-22 00:43:03,350 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 7 treesize of output 3 [2022-11-22 00:43:03,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 [2022-11-22 00:43:03,655 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 24 treesize of output 9 [2022-11-22 00:43:03,674 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 19 treesize of output 1 [2022-11-22 00:43:03,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:43:03,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2022-11-22 00:43:03,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 [2022-11-22 00:43:03,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-22 00:43:03,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-22 00:43:03,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-22 00:43:03,877 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:43:03,878 INFO L350 Elim1Store]: Elim1 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 26 treesize of output 38 [2022-11-22 00:43:03,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-22 00:43:03,962 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:43:03,963 INFO L350 Elim1Store]: Elim1 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 26 treesize of output 38 [2022-11-22 00:43:03,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-22 00:43:03,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-22 00:43:04,008 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 00:43:04,204 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 3 [2022-11-22 00:43:04,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-22 00:43:04,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-22 00:43:04,264 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 3 [2022-11-22 00:43:04,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 12 [2022-11-22 00:43:04,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 12 [2022-11-22 00:43:04,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-22 00:43:04,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-22 00:43:04,430 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 3 [2022-11-22 00:43:04,540 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 3 [2022-11-22 00:43:05,213 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 13 for LOIs [2022-11-22 00:43:05,229 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_list_is_valid with input of size 114 for LOIs [2022-11-22 00:43:05,333 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 00:43:05,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-11-22 00:43:05,358 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-22 00:43:05,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 00:43:05,450 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 00:43:05,450 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-11-22 00:43:05,476 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-22 00:43:05,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 00:43:05,569 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 00:43:05,692 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-22 00:43:05,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 00:43:05,714 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 00:43:05,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-11-22 00:43:05,738 INFO L197 IcfgInterpreter]: Interpreting procedure aws_mul_size_checked with input of size 19 for LOIs [2022-11-22 00:43:05,798 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 00:43:05,806 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 15 treesize of output 1 [2022-11-22 00:43:05,818 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 15 treesize of output 1 [2022-11-22 00:43:05,830 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 15 treesize of output 1 [2022-11-22 00:43:05,855 INFO L197 IcfgInterpreter]: Interpreting procedure __CPROVER_overflow_mult with input of size 19 for LOIs [2022-11-22 00:43:05,862 INFO L197 IcfgInterpreter]: Interpreting procedure bounded_malloc with input of size 78 for LOIs [2022-11-22 00:43:06,109 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 13 for LOIs [2022-11-22 00:43:06,111 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:44:07,224 WARN L233 SmtUtils]: Spent 10.59s on a formula simplification. DAG size of input: 97 DAG size of output: 91 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:44:19,555 WARN L233 SmtUtils]: Spent 7.04s on a formula simplification. DAG size of input: 128 DAG size of output: 120 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:44:51,523 WARN L233 SmtUtils]: Spent 24.55s on a formula simplification. DAG size of input: 148 DAG size of output: 130 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:46:23,347 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3683#(and (= |~#s_can_fail_allocator_static~0.base| 4) (= (mod __VERIFIER_assert_~cond 256) 0) (= |~#s_can_fail_allocator_static~0.offset| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 00:46:23,347 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:46:23,347 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-22 00:46:23,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2022-11-22 00:46:23,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615571494] [2022-11-22 00:46:23,348 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-22 00:46:23,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-22 00:46:23,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:46:23,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-22 00:46:23,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=322, Invalid=5166, Unknown=66, NotChecked=146, Total=5700 [2022-11-22 00:46:23,350 INFO L87 Difference]: Start difference. First operand 143 states and 187 transitions. Second operand has 32 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 24 states have internal predecessors, (31), 13 states have call successors, (18), 4 states have call predecessors, (18), 8 states have return successors, (17), 14 states have call predecessors, (17), 12 states have call successors, (17) [2022-11-22 00:46:25,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:46:27,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:46:31,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:46:33,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:46:35,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:46:37,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:46:41,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:46:43,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:46:45,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:46:47,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:46:51,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:46:53,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:46:58,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:47:00,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:47:02,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:47:04,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:47:06,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:47:08,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:47:10,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:47:12,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:47:14,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:47:16,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:47:18,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:47:22,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:47:24,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:47:27,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:47:33,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:47:36,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:47:38,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:47:40,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:47:42,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:47:44,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 00:47:53,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:47:55,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:47:58,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:48:00,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:48:02,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:48:04,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:48:07,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-11-22 00:48:08,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 00:48:10,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:48:12,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:48:15,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:48:17,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:48:19,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:48:22,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:48:24,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:48:26,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:48:28,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:48:31,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:48:33,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:48:35,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:48:37,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:48:39,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:48:41,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-22 00:48:52,749 WARN L233 SmtUtils]: Spent 6.00s on a formula simplification that was a NOOP. DAG size: 46 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)