./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_linked_list_back_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_9b40bf48-e277-4382-8fd8-b9e7bacee63a/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40bf48-e277-4382-8fd8-b9e7bacee63a/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40bf48-e277-4382-8fd8-b9e7bacee63a/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40bf48-e277-4382-8fd8-b9e7bacee63a/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_linked_list_back_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40bf48-e277-4382-8fd8-b9e7bacee63a/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40bf48-e277-4382-8fd8-b9e7bacee63a/bin/utaipan-6cKwYrpEi9 --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 f57bc64edf303a057c8eafb48480d4e5b764bd411481261d53eb2a101eb82ae8 --- 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-6b4ec56 [2022-11-20 21:24:10,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 21:24:10,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 21:24:10,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 21:24:10,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 21:24:10,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 21:24:10,857 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 21:24:10,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 21:24:10,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 21:24:10,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 21:24:10,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 21:24:10,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 21:24:10,872 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 21:24:10,874 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 21:24:10,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 21:24:10,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 21:24:10,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 21:24:10,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 21:24:10,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 21:24:10,887 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 21:24:10,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 21:24:10,891 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 21:24:10,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 21:24:10,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 21:24:10,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 21:24:10,904 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 21:24:10,904 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 21:24:10,906 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 21:24:10,906 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 21:24:10,907 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 21:24:10,908 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 21:24:10,908 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 21:24:10,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 21:24:10,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 21:24:10,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 21:24:10,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 21:24:10,913 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 21:24:10,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 21:24:10,914 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 21:24:10,915 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 21:24:10,916 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 21:24:10,917 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40bf48-e277-4382-8fd8-b9e7bacee63a/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-20 21:24:10,957 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 21:24:10,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 21:24:10,958 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 21:24:10,959 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 21:24:10,960 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 21:24:10,960 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 21:24:10,960 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 21:24:10,960 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 21:24:10,961 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 21:24:10,961 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 21:24:10,962 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 21:24:10,962 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 21:24:10,962 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 21:24:10,963 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 21:24:10,963 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 21:24:10,963 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 21:24:10,963 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 21:24:10,964 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 21:24:10,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 21:24:10,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 21:24:10,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 21:24:10,965 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 21:24:10,965 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 21:24:10,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 21:24:10,966 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 21:24:10,966 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 21:24:10,967 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 21:24:10,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 21:24:10,967 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 21:24:10,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:24:10,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 21:24:10,968 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 21:24:10,969 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 21:24:10,969 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 21:24:10,969 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 21:24:10,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 21:24:10,969 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 21:24:10,970 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 21:24:10,970 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_9b40bf48-e277-4382-8fd8-b9e7bacee63a/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40bf48-e277-4382-8fd8-b9e7bacee63a/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f57bc64edf303a057c8eafb48480d4e5b764bd411481261d53eb2a101eb82ae8 [2022-11-20 21:24:11,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 21:24:11,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 21:24:11,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 21:24:11,246 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 21:24:11,247 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 21:24:11,248 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40bf48-e277-4382-8fd8-b9e7bacee63a/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/aws-c-common/aws_linked_list_back_harness.i [2022-11-20 21:24:14,396 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 21:24:14,873 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 21:24:14,873 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40bf48-e277-4382-8fd8-b9e7bacee63a/sv-benchmarks/c/aws-c-common/aws_linked_list_back_harness.i [2022-11-20 21:24:14,899 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40bf48-e277-4382-8fd8-b9e7bacee63a/bin/utaipan-6cKwYrpEi9/data/f44a26e10/2a1d14d4f25a4270a333dddefb71e17f/FLAG564b1e14e [2022-11-20 21:24:14,917 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40bf48-e277-4382-8fd8-b9e7bacee63a/bin/utaipan-6cKwYrpEi9/data/f44a26e10/2a1d14d4f25a4270a333dddefb71e17f [2022-11-20 21:24:14,920 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 21:24:14,922 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 21:24:14,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 21:24:14,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 21:24:14,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 21:24:14,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:24:14" (1/1) ... [2022-11-20 21:24:14,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@494dd1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:24:14, skipping insertion in model container [2022-11-20 21:24:14,931 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:24:14" (1/1) ... [2022-11-20 21:24:14,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 21:24:15,042 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 21:24:15,251 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_9b40bf48-e277-4382-8fd8-b9e7bacee63a/sv-benchmarks/c/aws-c-common/aws_linked_list_back_harness.i[4494,4507] [2022-11-20 21:24:15,258 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_9b40bf48-e277-4382-8fd8-b9e7bacee63a/sv-benchmarks/c/aws-c-common/aws_linked_list_back_harness.i[4554,4567] [2022-11-20 21:24:15,998 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 21:24:15,999 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 21:24:16,000 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 21:24:16,001 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 21:24:16,002 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 21:24:16,021 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 21:24:16,027 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 21:24:16,030 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 21:24:16,032 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 21:24:16,037 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 21:24:16,042 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 21:24:16,043 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 21:24:16,047 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 21:24:16,360 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 21:24:16,362 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 21:24:16,363 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 21:24:16,364 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 21:24:16,366 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 21:24:16,366 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 21:24:16,367 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 21:24:16,368 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 21:24:16,369 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 21:24:16,369 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 21:24:16,510 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-20 21:24:16,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:24:16,563 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 21:24:16,578 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_9b40bf48-e277-4382-8fd8-b9e7bacee63a/sv-benchmarks/c/aws-c-common/aws_linked_list_back_harness.i[4494,4507] [2022-11-20 21:24:16,579 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_9b40bf48-e277-4382-8fd8-b9e7bacee63a/sv-benchmarks/c/aws-c-common/aws_linked_list_back_harness.i[4554,4567] [2022-11-20 21:24:16,621 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 21:24:16,622 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 21:24:16,622 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 21:24:16,623 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 21:24:16,624 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 21:24:16,631 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 21:24:16,631 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 21:24:16,632 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 21:24:16,633 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 21:24:16,634 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 21:24:16,635 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 21:24:16,635 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 21:24:16,635 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 21:24:16,670 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 21:24:16,671 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 21:24:16,672 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 21:24:16,672 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 21:24:16,673 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 21:24:16,674 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 21:24:16,675 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 21:24:16,675 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 21:24:16,676 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 21:24:16,676 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 21:24:16,700 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-20 21:24:16,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:24:16,957 INFO L208 MainTranslator]: Completed translation [2022-11-20 21:24:16,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:24:16 WrapperNode [2022-11-20 21:24:16,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 21:24:16,959 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 21:24:16,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 21:24:16,959 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 21:24:16,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:24:16" (1/1) ... [2022-11-20 21:24:17,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:24:16" (1/1) ... [2022-11-20 21:24:17,072 INFO L138 Inliner]: procedures = 679, calls = 1044, calls flagged for inlining = 50, calls inlined = 5, statements flattened = 133 [2022-11-20 21:24:17,073 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 21:24:17,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 21:24:17,074 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 21:24:17,074 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 21:24:17,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:24:16" (1/1) ... [2022-11-20 21:24:17,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:24:16" (1/1) ... [2022-11-20 21:24:17,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:24:16" (1/1) ... [2022-11-20 21:24:17,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:24:16" (1/1) ... [2022-11-20 21:24:17,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:24:16" (1/1) ... [2022-11-20 21:24:17,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:24:16" (1/1) ... [2022-11-20 21:24:17,109 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:24:16" (1/1) ... [2022-11-20 21:24:17,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:24:16" (1/1) ... [2022-11-20 21:24:17,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 21:24:17,116 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 21:24:17,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 21:24:17,116 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 21:24:17,117 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:24:16" (1/1) ... [2022-11-20 21:24:17,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:24:17,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40bf48-e277-4382-8fd8-b9e7bacee63a/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:24:17,148 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40bf48-e277-4382-8fd8-b9e7bacee63a/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 21:24:17,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40bf48-e277-4382-8fd8-b9e7bacee63a/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 21:24:17,200 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_back [2022-11-20 21:24:17,200 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_back [2022-11-20 21:24:17,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 21:24:17,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-20 21:24:17,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-20 21:24:17,201 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2022-11-20 21:24:17,201 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2022-11-20 21:24:17,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 21:24:17,201 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2022-11-20 21:24:17,201 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2022-11-20 21:24:17,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 21:24:17,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 21:24:17,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 21:24:17,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 21:24:17,203 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_empty [2022-11-20 21:24:17,203 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_empty [2022-11-20 21:24:17,203 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 21:24:17,204 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 21:24:17,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 21:24:17,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 21:24:17,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 21:24:17,204 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-20 21:24:17,205 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-20 21:24:17,205 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2022-11-20 21:24:17,205 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2022-11-20 21:24:17,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 21:24:17,513 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 21:24:17,517 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 21:24:17,928 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 21:24:18,187 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 21:24:18,189 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 21:24:18,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:24:18 BoogieIcfgContainer [2022-11-20 21:24:18,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 21:24:18,205 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 21:24:18,206 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 21:24:18,209 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 21:24:18,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:24:14" (1/3) ... [2022-11-20 21:24:18,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48c67b3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:24:18, skipping insertion in model container [2022-11-20 21:24:18,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:24:16" (2/3) ... [2022-11-20 21:24:18,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48c67b3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:24:18, skipping insertion in model container [2022-11-20 21:24:18,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:24:18" (3/3) ... [2022-11-20 21:24:18,216 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_back_harness.i [2022-11-20 21:24:18,237 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 21:24:18,238 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 21:24:18,294 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 21:24:18,300 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;@3eaed0b8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 21:24:18,300 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 21:24:18,305 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 36 states have internal predecessors, (43), 24 states have call successors, (24), 8 states have call predecessors, (24), 8 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-11-20 21:24:18,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-20 21:24:18,314 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:24:18,315 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 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] [2022-11-20 21:24:18,316 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:24:18,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:24:18,323 INFO L85 PathProgramCache]: Analyzing trace with hash -208090152, now seen corresponding path program 1 times [2022-11-20 21:24:18,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:24:18,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403464396] [2022-11-20 21:24:18,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:24:18,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:24:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:24:19,292 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-20 21:24:19,293 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:24:19,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403464396] [2022-11-20 21:24:19,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403464396] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 21:24:19,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989709016] [2022-11-20 21:24:19,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:24:19,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:24:19,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40bf48-e277-4382-8fd8-b9e7bacee63a/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:24:19,307 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40bf48-e277-4382-8fd8-b9e7bacee63a/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 21:24:19,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40bf48-e277-4382-8fd8-b9e7bacee63a/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 21:24:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:24:19,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 76 conjunts are in the unsatisfiable core [2022-11-20 21:24:19,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:24:19,814 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 18 treesize of output 19 [2022-11-20 21:24:19,827 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 18 treesize of output 19 [2022-11-20 21:24:19,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:24:19,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:24:19,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:24:19,929 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 0 case distinctions, treesize of input 35 treesize of output 41 [2022-11-20 21:24:19,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:24:19,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:24:19,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:24:19,950 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 0 case distinctions, treesize of input 37 treesize of output 43 [2022-11-20 21:24:22,016 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 21:24:22,016 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 21:24:22,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [989709016] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:24:22,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 21:24:22,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [5] total 13 [2022-11-20 21:24:22,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358741011] [2022-11-20 21:24:22,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:24:22,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 21:24:22,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:24:22,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 21:24:22,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-20 21:24:22,054 INFO L87 Difference]: Start difference. First operand has 69 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 36 states have internal predecessors, (43), 24 states have call successors, (24), 8 states have call predecessors, (24), 8 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 5 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2022-11-20 21:24:22,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:24:22,376 INFO L93 Difference]: Finished difference Result 153 states and 216 transitions. [2022-11-20 21:24:22,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 21:24:22,379 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 5 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 52 [2022-11-20 21:24:22,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:24:22,388 INFO L225 Difference]: With dead ends: 153 [2022-11-20 21:24:22,388 INFO L226 Difference]: Without dead ends: 93 [2022-11-20 21:24:22,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-11-20 21:24:22,394 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 14 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 44 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 21:24:22,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 266 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 44 Unchecked, 0.1s Time] [2022-11-20 21:24:22,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-11-20 21:24:22,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 82. [2022-11-20 21:24:22,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 42 states have (on average 1.1904761904761905) internal successors, (50), 43 states have internal predecessors, (50), 29 states have call successors, (29), 12 states have call predecessors, (29), 10 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2022-11-20 21:24:22,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 107 transitions. [2022-11-20 21:24:22,446 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 107 transitions. Word has length 52 [2022-11-20 21:24:22,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:24:22,446 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 107 transitions. [2022-11-20 21:24:22,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 5 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2022-11-20 21:24:22,447 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 107 transitions. [2022-11-20 21:24:22,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-20 21:24:22,449 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:24:22,449 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 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] [2022-11-20 21:24:22,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40bf48-e277-4382-8fd8-b9e7bacee63a/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 21:24:22,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40bf48-e277-4382-8fd8-b9e7bacee63a/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-20 21:24:22,657 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:24:22,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:24:22,658 INFO L85 PathProgramCache]: Analyzing trace with hash 575190234, now seen corresponding path program 1 times [2022-11-20 21:24:22,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:24:22,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086426432] [2022-11-20 21:24:22,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:24:22,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:24:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:24:23,080 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-20 21:24:23,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:24:23,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086426432] [2022-11-20 21:24:23,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086426432] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 21:24:23,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109538460] [2022-11-20 21:24:23,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:24:23,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 21:24:23,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40bf48-e277-4382-8fd8-b9e7bacee63a/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:24:23,083 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40bf48-e277-4382-8fd8-b9e7bacee63a/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 21:24:23,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b40bf48-e277-4382-8fd8-b9e7bacee63a/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 21:24:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:24:23,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 95 conjunts are in the unsatisfiable core [2022-11-20 21:24:23,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:24:23,321 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 [2022-11-20 21:24:23,483 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 18 treesize of output 19 [2022-11-20 21:24:23,508 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 18 treesize of output 19 [2022-11-20 21:24:23,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:24:23,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:24:23,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-20 21:24:23,603 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-20 21:24:23,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 29 [2022-11-20 21:24:23,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 15 treesize of output 7 [2022-11-20 21:24:23,632 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-20 21:24:23,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-20 21:24:23,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:24:23,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:24:23,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-20 21:24:23,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 32 treesize of output 30 [2022-11-20 21:24:23,788 INFO L321 Elim1Store]: treesize reduction 42, result has 20.8 percent of original size [2022-11-20 21:24:23,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 148 treesize of output 158 [2022-11-20 21:24:23,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:24:23,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:24:23,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 21:24:23,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 154 treesize of output 138 [2022-11-20 21:24:23,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 47 [2022-11-20 21:24:23,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-11-20 21:24:28,571 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 26 proven. 5 refuted. 2 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 21:24:28,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 21:24:34,939 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse4 (+ 16 |c_ULTIMATE.start_aws_linked_list_back_harness_~#list~0#1.offset|)) (.cse2 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|)) (.cse3 (+ |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset| 16)) (.cse1 (+ |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset| 24)) (.cse6 (+ 8 |c_ULTIMATE.start_aws_linked_list_back_harness_~#list~0#1.offset|))) (and (forall ((|ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| Int) (v_ArrVal_224 Int)) (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store .cse2 |ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| .cse3)))) (store .cse0 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse0 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_ArrVal_224))) |c_ULTIMATE.start_aws_linked_list_back_harness_~#list~0#1.base|) .cse4) 0)) (forall ((|ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| Int) (v_ArrVal_224 Int)) (= (select (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store .cse2 |ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| .cse3)))) (store .cse5 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse5 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_ArrVal_224))) |c_ULTIMATE.start_aws_linked_list_back_harness_~#list~0#1.base|) .cse6) 0)) (or (forall ((|ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| Int) (v_ArrVal_224 Int)) (not (= (select (select (let ((.cse7 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store .cse2 |ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| .cse3)))) (store .cse7 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse7 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_ArrVal_224))) |c_ULTIMATE.start_aws_linked_list_back_harness_~#list~0#1.base|) |c_ULTIMATE.start_aws_linked_list_back_harness_~#list~0#1.offset|) 0))) (forall ((v_ArrVal_227 (Array Int Int)) (v_ArrVal_226 (Array Int Int))) (not (= (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| v_ArrVal_226) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| v_ArrVal_227) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|)) |c_ULTIMATE.start_aws_linked_list_back_harness_~#list~0#1.base|) |c_ULTIMATE.start_aws_linked_list_back_harness_~#list~0#1.offset|) 0)))) (or (not (= |c_ULTIMATE.start_aws_linked_list_back_harness_~#list~0#1.base| 0)) (not (= |c_ULTIMATE.start_aws_linked_list_back_harness_~#list~0#1.offset| 0))) (forall ((v_ArrVal_227 (Array Int Int)) (v_ArrVal_226 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| v_ArrVal_226) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| v_ArrVal_227) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|)) |c_ULTIMATE.start_aws_linked_list_back_harness_~#list~0#1.base|) .cse4) 0)) (let ((.cse9 (+ |c_ULTIMATE.start_aws_linked_list_back_harness_~#list~0#1.offset| 24))) (or (forall ((|ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| Int) (v_ArrVal_224 Int)) (not (= (select (select (let ((.cse8 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store .cse2 |ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| .cse3)))) (store .cse8 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse8 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_ArrVal_224))) |c_ULTIMATE.start_aws_linked_list_back_harness_~#list~0#1.base|) .cse9) 0))) (forall ((v_ArrVal_227 (Array Int Int)) (v_ArrVal_226 (Array Int Int))) (not (= (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| v_ArrVal_226) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| v_ArrVal_227) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|)) |c_ULTIMATE.start_aws_linked_list_back_harness_~#list~0#1.base|) .cse9) 0))))) (forall ((v_ArrVal_227 (Array Int Int)) (v_ArrVal_226 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| v_ArrVal_226) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| v_ArrVal_227) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|)) |c_ULTIMATE.start_aws_linked_list_back_harness_~#list~0#1.base|) .cse6) 0)))) is different from false [2022-11-20 21:24:35,526 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 21:24:35,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 380 treesize of output 457 [2022-11-20 21:24:36,083 INFO L321 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2022-11-20 21:24:36,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 119 [2022-11-20 21:24:36,561 INFO L321 Elim1Store]: treesize reduction 228, result has 28.5 percent of original size [2022-11-20 21:24:36,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 7 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 22 case distinctions, treesize of input 216 treesize of output 797 [2022-11-20 21:24:39,020 INFO L321 Elim1Store]: treesize reduction 80, result has 27.9 percent of original size [2022-11-20 21:24:39,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 10 case distinctions, treesize of input 86 treesize of output 226 [2022-11-20 21:24:39,587 INFO L321 Elim1Store]: treesize reduction 228, result has 28.5 percent of original size [2022-11-20 21:24:39,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 7 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 22 case distinctions, treesize of input 352 treesize of output 853 [2022-11-20 21:24:44,965 INFO L321 Elim1Store]: treesize reduction 225, result has 29.5 percent of original size [2022-11-20 21:24:44,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 7 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 22 case distinctions, treesize of input 216 treesize of output 800 [2022-11-20 21:24:48,357 INFO L321 Elim1Store]: treesize reduction 225, result has 29.5 percent of original size [2022-11-20 21:24:48,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 7 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 22 case distinctions, treesize of input 216 treesize of output 800 [2022-11-20 21:24:51,029 INFO L321 Elim1Store]: treesize reduction 504, result has 22.7 percent of original size [2022-11-20 21:24:51,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 7 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 40 case distinctions, treesize of input 852 treesize of output 2142 [2022-11-20 21:25:07,091 INFO L321 Elim1Store]: treesize reduction 690, result has 28.4 percent of original size [2022-11-20 21:25:07,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 8 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 8 new quantified variables, introduced 45 case distinctions, treesize of input 3624 treesize of output 6169 [2022-11-20 21:25:49,301 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 21:25:51,040 INFO L321 Elim1Store]: treesize reduction 379, result has 32.4 percent of original size [2022-11-20 21:25:51,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 6 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 34 case distinctions, treesize of input 3074 treesize of output 4123 [2022-11-20 21:26:03,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2022-11-20 21:26:03,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6