./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P --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 43b2ef256b4d1a93a084f86d3d9a0522c1b29c695f7bf9f8438f4c917cc80da0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 22:46:34,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 22:46:34,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 22:46:34,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 22:46:34,302 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 22:46:34,307 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 22:46:34,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 22:46:34,315 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 22:46:34,317 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 22:46:34,325 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 22:46:34,326 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 22:46:34,328 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 22:46:34,328 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 22:46:34,331 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 22:46:34,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 22:46:34,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 22:46:34,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 22:46:34,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 22:46:34,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 22:46:34,354 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 22:46:34,356 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 22:46:34,357 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 22:46:34,360 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 22:46:34,361 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 22:46:34,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 22:46:34,365 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 22:46:34,366 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 22:46:34,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 22:46:34,368 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 22:46:34,369 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 22:46:34,369 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 22:46:34,370 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 22:46:34,371 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 22:46:34,372 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 22:46:34,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 22:46:34,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 22:46:34,374 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 22:46:34,374 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 22:46:34,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 22:46:34,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 22:46:34,376 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 22:46:34,377 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-20 22:46:34,402 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 22:46:34,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 22:46:34,402 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 22:46:34,403 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 22:46:34,403 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 22:46:34,404 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 22:46:34,404 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 22:46:34,404 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 22:46:34,404 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 22:46:34,404 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 22:46:34,405 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 22:46:34,405 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 22:46:34,405 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 22:46:34,405 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 22:46:34,405 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 22:46:34,406 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 22:46:34,406 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 22:46:34,406 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 22:46:34,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 22:46:34,407 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 22:46:34,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 22:46:34,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 22:46:34,408 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 22:46:34,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 22:46:34,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 22:46:34,408 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 22:46:34,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 22:46:34,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 22:46:34,409 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 22:46:34,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:46:34,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 22:46:34,414 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 22:46:34,414 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 22:46:34,415 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 22:46:34,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 22:46:34,415 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 22:46:34,416 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 22:46:34,417 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 22:46:34,417 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43b2ef256b4d1a93a084f86d3d9a0522c1b29c695f7bf9f8438f4c917cc80da0 [2021-11-20 22:46:34,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 22:46:34,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 22:46:34,730 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 22:46:34,732 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 22:46:34,732 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 22:46:34,734 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i [2021-11-20 22:46:34,810 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/data/5d64134a3/a059f880585441d39481abc84fbe8fa7/FLAG7838db942 [2021-11-20 22:46:35,721 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 22:46:35,722 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i [2021-11-20 22:46:35,773 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/data/5d64134a3/a059f880585441d39481abc84fbe8fa7/FLAG7838db942 [2021-11-20 22:46:35,821 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/data/5d64134a3/a059f880585441d39481abc84fbe8fa7 [2021-11-20 22:46:35,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 22:46:35,826 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 22:46:35,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 22:46:35,828 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 22:46:35,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 22:46:35,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:46:35" (1/1) ... [2021-11-20 22:46:35,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7168361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:35, skipping insertion in model container [2021-11-20 22:46:35,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:46:35" (1/1) ... [2021-11-20 22:46:35,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 22:46:35,966 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 22:46:36,321 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i[4493,4506] [2021-11-20 22:46:36,329 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i[4553,4566] [2021-11-20 22:46:37,211 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-20 22:46:37,297 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:37,298 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:37,298 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:37,299 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:37,300 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:37,314 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:37,318 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:37,321 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:37,321 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:37,324 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:37,325 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:37,329 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:37,330 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:37,702 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-20 22:46:37,703 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-20 22:46:37,704 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-20 22:46:37,706 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-20 22:46:37,707 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-20 22:46:37,708 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-20 22:46:37,708 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-20 22:46:37,709 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-20 22:46:37,710 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-20 22:46:37,711 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-20 22:46:37,861 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:37,869 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:37,935 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:46:37,994 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 22:46:38,019 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i[4493,4506] [2021-11-20 22:46:38,026 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/sv-benchmarks/c/aws-c-common/aws_array_list_back_harness.i[4553,4566] [2021-11-20 22:46:38,082 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-20 22:46:38,095 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:38,096 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:38,096 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:38,096 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:38,097 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:38,103 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:38,104 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:38,105 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:38,105 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:38,106 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:38,107 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:38,107 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:38,108 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:38,139 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-20 22:46:38,140 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-20 22:46:38,141 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-20 22:46:38,142 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-20 22:46:38,152 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-20 22:46:38,152 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-20 22:46:38,153 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-20 22:46:38,153 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-20 22:46:38,154 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-20 22:46:38,154 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-20 22:46:38,201 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:38,205 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-20 22:46:38,234 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:46:38,544 INFO L208 MainTranslator]: Completed translation [2021-11-20 22:46:38,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:38 WrapperNode [2021-11-20 22:46:38,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 22:46:38,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 22:46:38,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 22:46:38,546 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 22:46:38,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:38" (1/1) ... [2021-11-20 22:46:38,664 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:38" (1/1) ... [2021-11-20 22:46:38,770 INFO L137 Inliner]: procedures = 691, calls = 1682, calls flagged for inlining = 53, calls inlined = 9, statements flattened = 656 [2021-11-20 22:46:38,771 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 22:46:38,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 22:46:38,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 22:46:38,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 22:46:38,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:38" (1/1) ... [2021-11-20 22:46:38,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:38" (1/1) ... [2021-11-20 22:46:38,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:38" (1/1) ... [2021-11-20 22:46:38,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:38" (1/1) ... [2021-11-20 22:46:38,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:38" (1/1) ... [2021-11-20 22:46:38,873 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:38" (1/1) ... [2021-11-20 22:46:38,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:38" (1/1) ... [2021-11-20 22:46:38,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 22:46:38,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 22:46:38,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 22:46:38,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 22:46:38,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:38" (1/1) ... [2021-11-20 22:46:38,912 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:46:38,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:46:38,940 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 22:46:38,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 22:46:38,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 22:46:38,989 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2021-11-20 22:46:38,989 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2021-11-20 22:46:38,989 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-11-20 22:46:38,989 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-11-20 22:46:38,989 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-20 22:46:38,990 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-20 22:46:38,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 22:46:38,990 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-20 22:46:38,990 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-20 22:46:38,990 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-20 22:46:38,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-20 22:46:38,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 22:46:38,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 22:46:38,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 22:46:38,991 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2021-11-20 22:46:38,991 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2021-11-20 22:46:38,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 22:46:38,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 22:46:38,992 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-20 22:46:38,992 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-20 22:46:38,992 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-20 22:46:38,992 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-20 22:46:38,992 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-20 22:46:38,993 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-20 22:46:38,993 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-11-20 22:46:38,993 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-11-20 22:46:38,993 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2021-11-20 22:46:38,993 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2021-11-20 22:46:38,993 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-20 22:46:38,994 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-20 22:46:38,994 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2021-11-20 22:46:38,994 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2021-11-20 22:46:38,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 22:46:38,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 22:46:38,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 22:46:38,995 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-20 22:46:38,995 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-20 22:46:38,995 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-20 22:46:38,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-20 22:46:38,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 22:46:38,995 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2021-11-20 22:46:38,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2021-11-20 22:46:38,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 22:46:39,330 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 22:46:39,332 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 22:46:40,457 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 22:46:40,562 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 22:46:40,562 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 22:46:40,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:46:40 BoogieIcfgContainer [2021-11-20 22:46:40,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 22:46:40,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 22:46:40,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 22:46:40,570 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 22:46:40,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:46:35" (1/3) ... [2021-11-20 22:46:40,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73288338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:46:40, skipping insertion in model container [2021-11-20 22:46:40,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:46:38" (2/3) ... [2021-11-20 22:46:40,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73288338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:46:40, skipping insertion in model container [2021-11-20 22:46:40,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:46:40" (3/3) ... [2021-11-20 22:46:40,573 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_back_harness.i [2021-11-20 22:46:40,578 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 22:46:40,578 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 22:46:40,646 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 22:46:40,661 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 22:46:40,662 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 22:46:40,685 INFO L276 IsEmpty]: Start isEmpty. Operand has 149 states, 78 states have (on average 1.1794871794871795) internal successors, (92), 79 states have internal predecessors, (92), 53 states have call successors, (53), 16 states have call predecessors, (53), 16 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2021-11-20 22:46:40,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-20 22:46:40,704 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:46:40,705 INFO L514 BasicCegarLoop]: trace histogram [10, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:46:40,705 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:46:40,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:46:40,711 INFO L85 PathProgramCache]: Analyzing trace with hash 760808035, now seen corresponding path program 1 times [2021-11-20 22:46:40,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:46:40,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300439589] [2021-11-20 22:46:40,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:46:40,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:46:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:46:41,345 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-11-20 22:46:41,346 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:46:41,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300439589] [2021-11-20 22:46:41,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300439589] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 22:46:41,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [596276038] [2021-11-20 22:46:41,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:46:41,347 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:46:41,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:46:41,351 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:46:41,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 22:46:41,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:46:41,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 2190 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 22:46:41,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:46:42,253 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2021-11-20 22:46:42,253 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 22:46:42,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [596276038] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:46:42,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 22:46:42,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2021-11-20 22:46:42,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196959804] [2021-11-20 22:46:42,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:46:42,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 22:46:42,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:46:42,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 22:46:42,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 22:46:42,298 INFO L87 Difference]: Start difference. First operand has 149 states, 78 states have (on average 1.1794871794871795) internal successors, (92), 79 states have internal predecessors, (92), 53 states have call successors, (53), 16 states have call predecessors, (53), 16 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-20 22:46:43,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:46:43,155 INFO L93 Difference]: Finished difference Result 275 states and 387 transitions. [2021-11-20 22:46:43,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 22:46:43,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 95 [2021-11-20 22:46:43,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:46:43,171 INFO L225 Difference]: With dead ends: 275 [2021-11-20 22:46:43,171 INFO L226 Difference]: Without dead ends: 145 [2021-11-20 22:46:43,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-20 22:46:43,185 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 39 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 22:46:43,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 567 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 22:46:43,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2021-11-20 22:46:43,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2021-11-20 22:46:43,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 75 states have (on average 1.1333333333333333) internal successors, (85), 77 states have internal predecessors, (85), 53 states have call successors, (53), 16 states have call predecessors, (53), 16 states have return successors, (56), 51 states have call predecessors, (56), 51 states have call successors, (56) [2021-11-20 22:46:43,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 194 transitions. [2021-11-20 22:46:43,266 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 194 transitions. Word has length 95 [2021-11-20 22:46:43,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:46:43,267 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 194 transitions. [2021-11-20 22:46:43,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-20 22:46:43,268 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 194 transitions. [2021-11-20 22:46:43,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-20 22:46:43,280 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:46:43,280 INFO L514 BasicCegarLoop]: trace histogram [10, 5, 5, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:46:43,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 22:46:43,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-20 22:46:43,494 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:46:43,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:46:43,495 INFO L85 PathProgramCache]: Analyzing trace with hash 2068520097, now seen corresponding path program 1 times [2021-11-20 22:46:43,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:46:43,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104641233] [2021-11-20 22:46:43,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:46:43,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:46:43,561 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 22:46:43,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1958519838] [2021-11-20 22:46:43,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:46:43,562 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:46:43,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:46:43,563 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:46:43,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 22:46:44,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:46:44,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 2410 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 22:46:44,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:46:44,320 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-11-20 22:46:44,320 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 22:46:44,320 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:46:44,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104641233] [2021-11-20 22:46:44,321 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 22:46:44,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958519838] [2021-11-20 22:46:44,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958519838] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:46:44,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:46:44,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 22:46:44,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8357841] [2021-11-20 22:46:44,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:46:44,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 22:46:44,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:46:44,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 22:46:44,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 22:46:44,326 INFO L87 Difference]: Start difference. First operand 145 states and 194 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-20 22:46:45,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:46:45,350 INFO L93 Difference]: Finished difference Result 236 states and 315 transitions. [2021-11-20 22:46:45,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 22:46:45,351 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 113 [2021-11-20 22:46:45,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:46:45,354 INFO L225 Difference]: With dead ends: 236 [2021-11-20 22:46:45,354 INFO L226 Difference]: Without dead ends: 145 [2021-11-20 22:46:45,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-20 22:46:45,356 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 52 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-20 22:46:45,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 651 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-20 22:46:45,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2021-11-20 22:46:45,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2021-11-20 22:46:45,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 75 states have (on average 1.1333333333333333) internal successors, (85), 77 states have internal predecessors, (85), 53 states have call successors, (53), 16 states have call predecessors, (53), 16 states have return successors, (53), 51 states have call predecessors, (53), 51 states have call successors, (53) [2021-11-20 22:46:45,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 191 transitions. [2021-11-20 22:46:45,374 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 191 transitions. Word has length 113 [2021-11-20 22:46:45,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:46:45,375 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 191 transitions. [2021-11-20 22:46:45,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-20 22:46:45,375 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 191 transitions. [2021-11-20 22:46:45,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-20 22:46:45,377 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:46:45,377 INFO L514 BasicCegarLoop]: trace histogram [10, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:46:45,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-20 22:46:45,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:46:45,591 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:46:45,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:46:45,591 INFO L85 PathProgramCache]: Analyzing trace with hash -789505348, now seen corresponding path program 2 times [2021-11-20 22:46:45,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:46:45,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89955854] [2021-11-20 22:46:45,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:46:45,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:46:45,684 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 22:46:45,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [843647837] [2021-11-20 22:46:45,687 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 22:46:45,687 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:46:45,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:46:45,690 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:46:45,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 22:46:46,415 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-20 22:46:46,416 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 22:46:46,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 1839 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 22:46:46,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:46:46,659 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2021-11-20 22:46:46,660 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 22:46:46,660 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:46:46,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89955854] [2021-11-20 22:46:46,660 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 22:46:46,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843647837] [2021-11-20 22:46:46,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843647837] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:46:46,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:46:46,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 22:46:46,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335877669] [2021-11-20 22:46:46,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:46:46,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 22:46:46,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:46:46,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 22:46:46,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:46:46,664 INFO L87 Difference]: Start difference. First operand 145 states and 191 transitions. Second operand has 5 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-20 22:46:47,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:46:47,223 INFO L93 Difference]: Finished difference Result 232 states and 306 transitions. [2021-11-20 22:46:47,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 22:46:47,226 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 122 [2021-11-20 22:46:47,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:46:47,229 INFO L225 Difference]: With dead ends: 232 [2021-11-20 22:46:47,229 INFO L226 Difference]: Without dead ends: 145 [2021-11-20 22:46:47,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:46:47,231 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 22:46:47,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 595 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 22:46:47,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2021-11-20 22:46:47,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2021-11-20 22:46:47,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 75 states have (on average 1.1333333333333333) internal successors, (85), 77 states have internal predecessors, (85), 53 states have call successors, (53), 16 states have call predecessors, (53), 16 states have return successors, (52), 51 states have call predecessors, (52), 51 states have call successors, (52) [2021-11-20 22:46:47,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 190 transitions. [2021-11-20 22:46:47,247 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 190 transitions. Word has length 122 [2021-11-20 22:46:47,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:46:47,248 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 190 transitions. [2021-11-20 22:46:47,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-20 22:46:47,249 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 190 transitions. [2021-11-20 22:46:47,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-20 22:46:47,251 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:46:47,251 INFO L514 BasicCegarLoop]: trace histogram [10, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:46:47,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 22:46:47,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:46:47,459 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:46:47,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:46:47,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1803789845, now seen corresponding path program 3 times [2021-11-20 22:46:47,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:46:47,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435155972] [2021-11-20 22:46:47,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:46:47,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:46:47,518 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 22:46:47,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [703527012] [2021-11-20 22:46:47,519 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-20 22:46:47,519 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:46:47,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:46:47,520 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:46:47,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 22:46:48,049 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-20 22:46:48,049 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 22:46:48,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 2630 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 22:46:48,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:46:48,446 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2021-11-20 22:46:48,446 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 22:46:48,446 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:46:48,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435155972] [2021-11-20 22:46:48,446 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 22:46:48,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703527012] [2021-11-20 22:46:48,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703527012] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:46:48,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:46:48,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 22:46:48,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885692711] [2021-11-20 22:46:48,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:46:48,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 22:46:48,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:46:48,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 22:46:48,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-20 22:46:48,451 INFO L87 Difference]: Start difference. First operand 145 states and 190 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 5 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-20 22:46:49,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:46:49,702 INFO L93 Difference]: Finished difference Result 231 states and 302 transitions. [2021-11-20 22:46:49,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 22:46:49,702 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 5 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22) Word has length 131 [2021-11-20 22:46:49,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:46:49,705 INFO L225 Difference]: With dead ends: 231 [2021-11-20 22:46:49,705 INFO L226 Difference]: Without dead ends: 143 [2021-11-20 22:46:49,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-20 22:46:49,707 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 55 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 924 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-20 22:46:49,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 924 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-20 22:46:49,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-11-20 22:46:49,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2021-11-20 22:46:49,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 74 states have (on average 1.1216216216216217) internal successors, (83), 75 states have internal predecessors, (83), 53 states have call successors, (53), 16 states have call predecessors, (53), 15 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2021-11-20 22:46:49,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 187 transitions. [2021-11-20 22:46:49,722 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 187 transitions. Word has length 131 [2021-11-20 22:46:49,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:46:49,723 INFO L470 AbstractCegarLoop]: Abstraction has 143 states and 187 transitions. [2021-11-20 22:46:49,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 5 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-20 22:46:49,724 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 187 transitions. [2021-11-20 22:46:49,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-20 22:46:49,725 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:46:49,726 INFO L514 BasicCegarLoop]: trace histogram [10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:46:49,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-20 22:46:49,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:46:49,944 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:46:49,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:46:49,944 INFO L85 PathProgramCache]: Analyzing trace with hash -80931936, now seen corresponding path program 1 times [2021-11-20 22:46:49,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:46:49,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532521190] [2021-11-20 22:46:49,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:46:49,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:46:50,022 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 22:46:50,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [235055579] [2021-11-20 22:46:50,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:46:50,023 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:46:50,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:46:50,039 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:46:50,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ad04e3-be57-4f5a-ba77-d05df03b496e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 22:46:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:46:50,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 2740 conjuncts, 56 conjunts are in the unsatisfiable core [2021-11-20 22:46:50,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:46:51,018 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 117 proven. 6 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2021-11-20 22:46:51,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 22:46:51,843 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2021-11-20 22:46:51,843 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:46:51,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532521190] [2021-11-20 22:46:51,843 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 22:46:51,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235055579] [2021-11-20 22:46:51,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235055579] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 22:46:51,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [128972049] [2021-11-20 22:46:51,876 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2021-11-20 22:46:51,876 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 22:46:51,883 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 22:46:51,889 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 22:46:51,889 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 22:46:57,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:46:57,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:46:57,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:46:57,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:46:58,025 INFO L244 Elim1Store]: Index analysis took 390 ms [2021-11-20 22:47:33,182 WARN L227 SmtUtils]: Spent 35.08s on a formula simplification. DAG size of input: 2139 DAG size of output: 1167 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 22:47:33,205 INFO L354 Elim1Store]: treesize reduction 3492, result has 33.3 percent of original size [2021-11-20 22:47:33,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 199 select indices, 199 select index equivalence classes, 19507 disjoint index pairs (out of 19701 index pairs), introduced 199 new quantified variables, introduced 388 case distinctions, treesize of input 1002 treesize of output 2369 [2021-11-20 22:47:59,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:59,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:59,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:47:59,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 197 select indices, 197 select index equivalence classes, 19503 disjoint index pairs (out of 19306 index pairs), introduced 197 new quantified variables, introduced 0 case distinctions, treesize of input 992 treesize of output 1582