./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 b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f77dde3-115b-45ac-8715-430e2fc639dd/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f77dde3-115b-45ac-8715-430e2fc639dd/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_1f77dde3-115b-45ac-8715-430e2fc639dd/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f77dde3-115b-45ac-8715-430e2fc639dd/bin/utaipan-g80aRyZoba/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_1f77dde3-115b-45ac-8715-430e2fc639dd/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_1f77dde3-115b-45ac-8715-430e2fc639dd/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 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-b5237d8 [2022-11-22 01:10:43,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:10:43,848 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:10:43,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:10:43,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:10:43,899 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:10:43,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:10:43,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:10:43,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:10:43,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:10:43,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:10:43,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:10:43,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:10:43,921 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:10:43,923 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:10:43,925 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:10:43,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:10:43,928 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:10:43,930 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:10:43,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:10:43,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:10:43,950 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:10:43,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:10:43,953 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:10:43,964 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:10:43,965 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:10:43,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:10:43,967 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:10:43,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:10:43,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:10:43,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:10:43,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:10:43,972 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:10:43,973 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:10:43,975 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:10:43,976 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:10:43,977 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:10:43,977 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:10:43,977 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:10:43,979 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:10:43,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:10:43,997 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f77dde3-115b-45ac-8715-430e2fc639dd/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:10:44,028 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:10:44,029 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:10:44,030 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:10:44,030 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:10:44,031 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:10:44,031 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:10:44,031 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:10:44,032 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:10:44,032 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:10:44,032 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:10:44,033 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:10:44,033 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:10:44,034 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:10:44,034 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:10:44,034 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:10:44,034 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:10:44,035 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:10:44,035 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:10:44,036 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:10:44,036 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:10:44,036 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:10:44,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:10:44,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:10:44,037 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:10:44,037 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:10:44,037 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:10:44,038 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:10:44,038 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:10:44,038 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:10:44,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:10:44,039 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:10:44,039 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:10:44,039 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:10:44,040 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:10:44,040 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:10:44,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:10:44,040 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:10:44,041 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:10:44,041 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_1f77dde3-115b-45ac-8715-430e2fc639dd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f77dde3-115b-45ac-8715-430e2fc639dd/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f57bc64edf303a057c8eafb48480d4e5b764bd411481261d53eb2a101eb82ae8 [2022-11-22 01:10:44,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:10:44,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:10:44,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:10:44,416 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:10:44,430 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:10:44,431 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f77dde3-115b-45ac-8715-430e2fc639dd/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/aws-c-common/aws_linked_list_back_harness.i [2022-11-22 01:10:47,353 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:10:47,818 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:10:47,818 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f77dde3-115b-45ac-8715-430e2fc639dd/sv-benchmarks/c/aws-c-common/aws_linked_list_back_harness.i [2022-11-22 01:10:47,868 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f77dde3-115b-45ac-8715-430e2fc639dd/bin/utaipan-g80aRyZoba/data/b5fd48e37/7b140d2c231d4dda8356836e7b4ed65b/FLAG39b33d67f [2022-11-22 01:10:47,893 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f77dde3-115b-45ac-8715-430e2fc639dd/bin/utaipan-g80aRyZoba/data/b5fd48e37/7b140d2c231d4dda8356836e7b4ed65b [2022-11-22 01:10:47,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:10:47,900 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:10:47,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:10:47,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:10:47,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:10:47,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:10:47" (1/1) ... [2022-11-22 01:10:47,913 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58c50cdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:47, skipping insertion in model container [2022-11-22 01:10:47,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:10:47" (1/1) ... [2022-11-22 01:10:47,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:10:48,040 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:10:48,281 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_1f77dde3-115b-45ac-8715-430e2fc639dd/sv-benchmarks/c/aws-c-common/aws_linked_list_back_harness.i[4494,4507] [2022-11-22 01:10:48,289 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_1f77dde3-115b-45ac-8715-430e2fc639dd/sv-benchmarks/c/aws-c-common/aws_linked_list_back_harness.i[4554,4567] [2022-11-22 01:10:49,309 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:10:49,310 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:10:49,310 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:10:49,311 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:10:49,312 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:10:49,326 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:10:49,331 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:10:49,338 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:10:49,340 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:10:49,344 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:10:49,346 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:10:49,346 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:10:49,349 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:10:49,899 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 01:10:49,900 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 01:10:49,901 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 01:10:49,902 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 01:10:49,904 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 01:10:49,905 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 01:10:49,905 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 01:10:49,906 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 01:10:49,906 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 01:10:49,907 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 01:10:50,086 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 01:10:50,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:10:50,128 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:10:50,142 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_1f77dde3-115b-45ac-8715-430e2fc639dd/sv-benchmarks/c/aws-c-common/aws_linked_list_back_harness.i[4494,4507] [2022-11-22 01:10:50,143 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_1f77dde3-115b-45ac-8715-430e2fc639dd/sv-benchmarks/c/aws-c-common/aws_linked_list_back_harness.i[4554,4567] [2022-11-22 01:10:50,209 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:10:50,209 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:10:50,210 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:10:50,210 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:10:50,211 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:10:50,218 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:10:50,219 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:10:50,220 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:10:50,220 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:10:50,222 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:10:50,222 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:10:50,223 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:10:50,223 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 01:10:50,264 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 01:10:50,267 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 01:10:50,268 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 01:10:50,269 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 01:10:50,275 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 01:10:50,276 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 01:10:50,276 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 01:10:50,277 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 01:10:50,278 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 01:10:50,279 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 01:10:50,320 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 01:10:50,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:10:50,541 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:10:50,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:50 WrapperNode [2022-11-22 01:10:50,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:10:50,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:10:50,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:10:50,547 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:10:50,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:50" (1/1) ... [2022-11-22 01:10:50,616 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:50" (1/1) ... [2022-11-22 01:10:50,650 INFO L138 Inliner]: procedures = 679, calls = 1044, calls flagged for inlining = 50, calls inlined = 5, statements flattened = 133 [2022-11-22 01:10:50,650 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:10:50,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:10:50,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:10:50,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:10:50,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:50" (1/1) ... [2022-11-22 01:10:50,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:50" (1/1) ... [2022-11-22 01:10:50,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:50" (1/1) ... [2022-11-22 01:10:50,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:50" (1/1) ... [2022-11-22 01:10:50,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:50" (1/1) ... [2022-11-22 01:10:50,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:50" (1/1) ... [2022-11-22 01:10:50,708 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:50" (1/1) ... [2022-11-22 01:10:50,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:50" (1/1) ... [2022-11-22 01:10:50,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:10:50,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:10:50,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:10:50,727 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:10:50,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:50" (1/1) ... [2022-11-22 01:10:50,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:10:50,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f77dde3-115b-45ac-8715-430e2fc639dd/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:10:50,759 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f77dde3-115b-45ac-8715-430e2fc639dd/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:10:50,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f77dde3-115b-45ac-8715-430e2fc639dd/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:10:50,805 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_back [2022-11-22 01:10:50,805 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_back [2022-11-22 01:10:50,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:10:50,807 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-22 01:10:50,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-22 01:10:50,807 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2022-11-22 01:10:50,807 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2022-11-22 01:10:50,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:10:50,808 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2022-11-22 01:10:50,808 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2022-11-22 01:10:50,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:10:50,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:10:50,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:10:50,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:10:50,809 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_empty [2022-11-22 01:10:50,810 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_empty [2022-11-22 01:10:50,810 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-22 01:10:50,810 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-22 01:10:50,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:10:50,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:10:50,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:10:50,810 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-22 01:10:50,811 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-22 01:10:50,812 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2022-11-22 01:10:50,812 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2022-11-22 01:10:50,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:10:51,248 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:10:51,250 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:10:51,644 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:10:51,776 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:10:51,776 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 01:10:51,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:10:51 BoogieIcfgContainer [2022-11-22 01:10:51,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:10:51,782 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:10:51,782 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:10:51,786 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:10:51,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:10:47" (1/3) ... [2022-11-22 01:10:51,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5913aec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:10:51, skipping insertion in model container [2022-11-22 01:10:51,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:50" (2/3) ... [2022-11-22 01:10:51,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5913aec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:10:51, skipping insertion in model container [2022-11-22 01:10:51,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:10:51" (3/3) ... [2022-11-22 01:10:51,789 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_back_harness.i [2022-11-22 01:10:51,807 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:10:51,808 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:10:51,873 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:10:51,886 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;@49f40bfe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:10:51,886 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:10:51,891 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) [2022-11-22 01:10:51,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-22 01:10:51,903 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:10:51,904 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] [2022-11-22 01:10:51,905 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:10:51,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:10:51,911 INFO L85 PathProgramCache]: Analyzing trace with hash -208090152, now seen corresponding path program 1 times [2022-11-22 01:10:51,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:10:51,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518642592] [2022-11-22 01:10:51,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:51,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:10:52,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:52,840 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-22 01:10:52,841 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:10:52,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518642592] [2022-11-22 01:10:52,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518642592] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:10:52,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12938686] [2022-11-22 01:10:52,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:52,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:10:52,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f77dde3-115b-45ac-8715-430e2fc639dd/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:10:52,855 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f77dde3-115b-45ac-8715-430e2fc639dd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:10:52,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f77dde3-115b-45ac-8715-430e2fc639dd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:10:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:53,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 76 conjunts are in the unsatisfiable core [2022-11-22 01:10:53,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:10:53,295 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 [2022-11-22 01:10:53,310 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 [2022-11-22 01:10:53,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:53,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:53,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:53,430 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 [2022-11-22 01:10:53,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:53,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:53,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:53,455 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 [2022-11-22 01:10:55,752 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-22 01:10:55,752 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:10:55,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12938686] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:10:55,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:10:55,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [5] total 13 [2022-11-22 01:10:55,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025360002] [2022-11-22 01:10:55,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:10:55,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 01:10:55,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:10:55,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 01:10:55,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:10:55,790 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) [2022-11-22 01:10:57,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:10:57,036 INFO L93 Difference]: Finished difference Result 188 states and 265 transitions. [2022-11-22 01:10:57,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-22 01:10:57,039 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 [2022-11-22 01:10:57,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:10:57,048 INFO L225 Difference]: With dead ends: 188 [2022-11-22 01:10:57,048 INFO L226 Difference]: Without dead ends: 127 [2022-11-22 01:10:57,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-11-22 01:10:57,060 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 86 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:10:57,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 347 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 01:10:57,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-11-22 01:10:57,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2022-11-22 01:10:57,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 63 states have (on average 1.2063492063492063) internal successors, (76), 65 states have internal predecessors, (76), 46 states have call successors, (46), 15 states have call predecessors, (46), 15 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-11-22 01:10:57,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 166 transitions. [2022-11-22 01:10:57,164 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 166 transitions. Word has length 52 [2022-11-22 01:10:57,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:10:57,165 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 166 transitions. [2022-11-22 01:10:57,166 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) [2022-11-22 01:10:57,166 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 166 transitions. [2022-11-22 01:10:57,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-22 01:10:57,169 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:10:57,170 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] [2022-11-22 01:10:57,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f77dde3-115b-45ac-8715-430e2fc639dd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:10:57,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f77dde3-115b-45ac-8715-430e2fc639dd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:10:57,377 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:10:57,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:10:57,378 INFO L85 PathProgramCache]: Analyzing trace with hash 575190234, now seen corresponding path program 1 times [2022-11-22 01:10:57,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:10:57,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812409762] [2022-11-22 01:10:57,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:57,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:10:57,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:57,753 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-22 01:10:57,754 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:10:57,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812409762] [2022-11-22 01:10:57,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812409762] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:10:57,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000768495] [2022-11-22 01:10:57,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:57,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:10:57,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f77dde3-115b-45ac-8715-430e2fc639dd/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:10:57,759 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f77dde3-115b-45ac-8715-430e2fc639dd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:10:57,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f77dde3-115b-45ac-8715-430e2fc639dd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:10:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:57,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 95 conjunts are in the unsatisfiable core [2022-11-22 01:10:57,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:10:57,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:10:58,157 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 [2022-11-22 01:10:58,186 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 [2022-11-22 01:10:58,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:58,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:58,253 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 [2022-11-22 01:10:58,272 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 01:10:58,273 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 [2022-11-22 01:10:58,282 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 [2022-11-22 01:10:58,308 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:10:58,308 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 [2022-11-22 01:10:58,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:58,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:58,321 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 [2022-11-22 01:10:58,327 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 [2022-11-22 01:10:58,457 INFO L321 Elim1Store]: treesize reduction 42, result has 20.8 percent of original size [2022-11-22 01:10:58,457 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 [2022-11-22 01:10:58,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:58,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:58,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:58,470 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 [2022-11-22 01:10:58,486 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 [2022-11-22 01:10:58,506 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 [2022-11-22 01:11:03,144 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 26 proven. 5 refuted. 2 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-22 01:11:03,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:11:09,471 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 [2022-11-22 01:11:10,008 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:11:10,008 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 [2022-11-22 01:11:10,594 INFO L321 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2022-11-22 01:11:10,594 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 [2022-11-22 01:11:11,173 INFO L321 Elim1Store]: treesize reduction 228, result has 28.5 percent of original size [2022-11-22 01:11:11,173 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 [2022-11-22 01:11:13,536 INFO L321 Elim1Store]: treesize reduction 80, result has 27.9 percent of original size [2022-11-22 01:11:13,536 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 [2022-11-22 01:11:14,133 INFO L321 Elim1Store]: treesize reduction 228, result has 28.5 percent of original size [2022-11-22 01:11:14,134 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 [2022-11-22 01:11:19,504 INFO L321 Elim1Store]: treesize reduction 225, result has 29.5 percent of original size [2022-11-22 01:11:19,504 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 [2022-11-22 01:11:22,936 INFO L321 Elim1Store]: treesize reduction 225, result has 29.5 percent of original size [2022-11-22 01:11:22,941 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 [2022-11-22 01:11:25,894 INFO L321 Elim1Store]: treesize reduction 504, result has 22.7 percent of original size [2022-11-22 01:11:25,895 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 [2022-11-22 01:11:43,981 WARN L233 SmtUtils]: Spent 5.22s on a formula simplification. DAG size of input: 231 DAG size of output: 117 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-22 01:11:43,982 INFO L321 Elim1Store]: treesize reduction 690, result has 28.4 percent of original size [2022-11-22 01:11:43,984 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 [2022-11-22 01:12:30,970 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:12:32,289 INFO L321 Elim1Store]: treesize reduction 379, result has 32.4 percent of original size [2022-11-22 01:12:32,290 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 [2022-11-22 01:12:45,062 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 [2022-11-22 01:12:45,104 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