./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur --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 c12ad62b7b197015493bfb3c1dd9a5de2922d9b16e39f249961c276d8b82591b --- 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-38b53e6 [2022-11-26 00:51:15,387 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:51:15,390 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:51:15,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:51:15,416 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:51:15,420 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:51:15,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:51:15,428 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:51:15,430 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:51:15,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:51:15,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:51:15,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:51:15,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:51:15,448 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:51:15,450 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:51:15,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:51:15,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:51:15,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:51:15,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:51:15,465 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:51:15,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:51:15,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:51:15,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:51:15,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:51:15,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:51:15,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:51:15,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:51:15,481 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:51:15,481 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:51:15,482 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:51:15,483 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:51:15,484 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:51:15,485 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:51:15,487 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:51:15,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:51:15,490 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:51:15,491 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:51:15,491 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:51:15,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:51:15,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:51:15,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:51:15,495 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-26 00:51:15,534 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:51:15,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:51:15,539 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:51:15,539 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:51:15,540 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:51:15,540 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:51:15,540 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:51:15,541 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:51:15,541 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:51:15,541 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:51:15,541 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:51:15,541 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:51:15,542 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:51:15,542 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:51:15,542 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:51:15,542 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:51:15,542 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:51:15,543 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:51:15,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:51:15,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:51:15,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:51:15,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:51:15,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:51:15,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:51:15,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:51:15,545 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:51:15,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:51:15,545 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:51:15,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:51:15,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:51:15,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:51:15,546 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:51:15,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:51:15,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:51:15,547 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:51:15,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:51:15,547 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:51:15,547 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:51:15,548 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_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c12ad62b7b197015493bfb3c1dd9a5de2922d9b16e39f249961c276d8b82591b [2022-11-26 00:51:15,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:51:15,867 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:51:15,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:51:15,870 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:51:15,871 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:51:15,873 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i [2022-11-26 00:51:18,949 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:51:19,475 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:51:19,476 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i [2022-11-26 00:51:19,518 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/data/8f098caab/e98dc89264ff4c3b9802f677a8b6fa09/FLAGbf460fbc2 [2022-11-26 00:51:19,560 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/data/8f098caab/e98dc89264ff4c3b9802f677a8b6fa09 [2022-11-26 00:51:19,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:51:19,564 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:51:19,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:51:19,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:51:19,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:51:19,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:51:19" (1/1) ... [2022-11-26 00:51:19,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2194a202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:51:19, skipping insertion in model container [2022-11-26 00:51:19,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:51:19" (1/1) ... [2022-11-26 00:51:19,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:51:19,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:51:19,906 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_eac49d8a-927f-4787-800e-4a8295fd263c/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4504,4517] [2022-11-26 00:51:19,914 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_eac49d8a-927f-4787-800e-4a8295fd263c/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4564,4577] [2022-11-26 00:51:20,673 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-26 00:51:20,740 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:51:20,747 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:20,751 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:20,752 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:20,758 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:20,759 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:20,762 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:51:20,772 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:20,772 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:51:20,773 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:20,775 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:20,776 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:20,777 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:20,778 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:51:20,778 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:20,779 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:20,779 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:20,844 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:51:20,845 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:51:20,846 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:51:20,850 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-26 00:51:20,852 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-26 00:51:20,852 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-26 00:51:21,106 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-26 00:51:21,107 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-26 00:51:21,108 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-26 00:51:21,110 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-26 00:51:21,111 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-26 00:51:21,112 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-26 00:51:21,113 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-26 00:51:21,114 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-26 00:51:21,114 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-26 00:51:21,115 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-26 00:51:21,116 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-26 00:51:21,251 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:21,252 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:21,256 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:21,258 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:51:21,260 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:51:21,264 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:51:21,266 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:21,269 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:51:21,276 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:51:21,286 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:51:21,287 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:51:21,288 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:51:21,288 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:51:21,288 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:51:21,386 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:51:21,390 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:21,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:51:21,471 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:51:21,484 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_eac49d8a-927f-4787-800e-4a8295fd263c/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4504,4517] [2022-11-26 00:51:21,485 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_eac49d8a-927f-4787-800e-4a8295fd263c/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4564,4577] [2022-11-26 00:51:21,514 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-26 00:51:21,526 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:51:21,529 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:21,529 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:21,530 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:21,530 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:21,531 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:21,532 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:51:21,538 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:21,538 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:51:21,538 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:21,539 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:21,540 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:21,541 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:21,541 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:51:21,542 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:21,542 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:21,542 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:21,549 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:51:21,549 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:51:21,550 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:51:21,553 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-26 00:51:21,554 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-26 00:51:21,555 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-26 00:51:21,574 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-26 00:51:21,575 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-26 00:51:21,576 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-26 00:51:21,576 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-26 00:51:21,577 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-26 00:51:21,578 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-26 00:51:21,578 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-26 00:51:21,579 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-26 00:51:21,579 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-26 00:51:21,580 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-26 00:51:21,580 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-26 00:51:21,610 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:21,616 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:21,618 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:21,621 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:51:21,623 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:51:21,624 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:51:21,626 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:21,629 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:51:21,630 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:51:21,630 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:51:21,631 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:51:21,638 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:51:21,639 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:51:21,639 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:51:21,658 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:51:21,668 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:51:21,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:51:21,878 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:51:21,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:51:21 WrapperNode [2022-11-26 00:51:21,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:51:21,880 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:51:21,880 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:51:21,880 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:51:21,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:51:21" (1/1) ... [2022-11-26 00:51:21,952 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:51:21" (1/1) ... [2022-11-26 00:51:22,031 INFO L138 Inliner]: procedures = 691, calls = 1683, calls flagged for inlining = 52, calls inlined = 11, statements flattened = 803 [2022-11-26 00:51:22,032 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:51:22,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:51:22,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:51:22,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:51:22,042 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:51:21" (1/1) ... [2022-11-26 00:51:22,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:51:21" (1/1) ... [2022-11-26 00:51:22,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:51:21" (1/1) ... [2022-11-26 00:51:22,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:51:21" (1/1) ... [2022-11-26 00:51:22,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:51:21" (1/1) ... [2022-11-26 00:51:22,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:51:21" (1/1) ... [2022-11-26 00:51:22,091 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:51:21" (1/1) ... [2022-11-26 00:51:22,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:51:21" (1/1) ... [2022-11-26 00:51:22,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:51:22,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:51:22,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:51:22,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:51:22,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:51:21" (1/1) ... [2022-11-26 00:51:22,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:51:22,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:51:22,162 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:51:22,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:51:22,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:51:22,204 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-26 00:51:22,204 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-26 00:51:22,204 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-26 00:51:22,204 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-26 00:51:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-26 00:51:22,206 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-26 00:51:22,209 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2022-11-26 00:51:22,210 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2022-11-26 00:51:22,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:51:22,210 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-26 00:51:22,210 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-26 00:51:22,211 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-26 00:51:22,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-26 00:51:22,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:51:22,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:51:22,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:51:22,217 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-26 00:51:22,217 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-26 00:51:22,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:51:22,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:51:22,218 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-26 00:51:22,218 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-26 00:51:22,218 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-26 00:51:22,218 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-26 00:51:22,218 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-26 00:51:22,218 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-26 00:51:22,218 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-11-26 00:51:22,218 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-11-26 00:51:22,219 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2022-11-26 00:51:22,219 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2022-11-26 00:51:22,219 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-26 00:51:22,219 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-26 00:51:22,219 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-26 00:51:22,219 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-26 00:51:22,219 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2022-11-26 00:51:22,219 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2022-11-26 00:51:22,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:51:22,220 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-11-26 00:51:22,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-11-26 00:51:22,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:51:22,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 00:51:22,220 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-26 00:51:22,220 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-26 00:51:22,220 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-26 00:51:22,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-26 00:51:22,221 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-11-26 00:51:22,221 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-11-26 00:51:22,221 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_ensure_capacity [2022-11-26 00:51:22,221 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_ensure_capacity [2022-11-26 00:51:22,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:51:22,221 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-26 00:51:22,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-26 00:51:22,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:51:22,575 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:51:22,578 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:51:23,761 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:51:23,920 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:51:23,920 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:51:23,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:51:23 BoogieIcfgContainer [2022-11-26 00:51:23,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:51:23,926 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:51:23,926 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:51:23,929 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:51:23,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:51:19" (1/3) ... [2022-11-26 00:51:23,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d47d9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:51:23, skipping insertion in model container [2022-11-26 00:51:23,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:51:21" (2/3) ... [2022-11-26 00:51:23,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d47d9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:51:23, skipping insertion in model container [2022-11-26 00:51:23,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:51:23" (3/3) ... [2022-11-26 00:51:23,933 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_ensure_capacity_harness.i [2022-11-26 00:51:23,952 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:51:23,952 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:51:24,007 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:51:24,014 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;@55fd6ae2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:51:24,014 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:51:24,019 INFO L276 IsEmpty]: Start isEmpty. Operand has 207 states, 111 states have (on average 1.2072072072072073) internal successors, (134), 112 states have internal predecessors, (134), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-11-26 00:51:24,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-26 00:51:24,030 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:51:24,031 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2022-11-26 00:51:24,032 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:51:24,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:51:24,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1517059556, now seen corresponding path program 1 times [2022-11-26 00:51:24,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:51:24,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228896911] [2022-11-26 00:51:24,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:24,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:51:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:51:25,137 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-26 00:51:25,138 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:51:25,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228896911] [2022-11-26 00:51:25,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228896911] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:51:25,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692729611] [2022-11-26 00:51:25,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:25,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:51:25,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:51:25,146 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:51:25,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:51:25,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:51:25,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 2227 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 00:51:25,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:51:25,867 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-26 00:51:25,868 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:51:25,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692729611] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:51:25,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:51:25,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-11-26 00:51:25,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685032715] [2022-11-26 00:51:25,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:51:25,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:51:25,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:51:25,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:51:25,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:51:25,908 INFO L87 Difference]: Start difference. First operand has 207 states, 111 states have (on average 1.2072072072072073) internal successors, (134), 112 states have internal predecessors, (134), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-26 00:51:26,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:26,341 INFO L93 Difference]: Finished difference Result 393 states and 562 transitions. [2022-11-26 00:51:26,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:51:26,344 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 71 [2022-11-26 00:51:26,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:26,355 INFO L225 Difference]: With dead ends: 393 [2022-11-26 00:51:26,355 INFO L226 Difference]: Without dead ends: 201 [2022-11-26 00:51:26,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:51:26,364 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 29 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:26,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 869 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:51:26,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-11-26 00:51:26,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2022-11-26 00:51:26,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 106 states have (on average 1.179245283018868) internal successors, (125), 109 states have internal predecessors, (125), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (80), 70 states have call predecessors, (80), 70 states have call successors, (80) [2022-11-26 00:51:26,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 278 transitions. [2022-11-26 00:51:26,439 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 278 transitions. Word has length 71 [2022-11-26 00:51:26,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:51:26,440 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 278 transitions. [2022-11-26 00:51:26,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-26 00:51:26,441 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 278 transitions. [2022-11-26 00:51:26,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-26 00:51:26,444 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:51:26,444 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:51:26,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:51:26,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-26 00:51:26,654 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:51:26,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:51:26,654 INFO L85 PathProgramCache]: Analyzing trace with hash 717667055, now seen corresponding path program 1 times [2022-11-26 00:51:26,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:51:26,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246097110] [2022-11-26 00:51:26,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:26,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:51:26,810 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:51:26,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [270070312] [2022-11-26 00:51:26,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:26,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:51:26,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:51:26,818 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:51:26,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:51:27,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:51:27,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 2359 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-26 00:51:27,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:51:27,532 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-26 00:51:27,533 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:51:27,533 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:51:27,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246097110] [2022-11-26 00:51:27,534 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:51:27,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270070312] [2022-11-26 00:51:27,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270070312] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:51:27,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:51:27,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:51:27,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038785786] [2022-11-26 00:51:27,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:51:27,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:51:27,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:51:27,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:51:27,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:51:27,537 INFO L87 Difference]: Start difference. First operand 201 states and 278 transitions. Second operand has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-26 00:51:28,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:28,358 INFO L93 Difference]: Finished difference Result 370 states and 510 transitions. [2022-11-26 00:51:28,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:51:28,358 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 80 [2022-11-26 00:51:28,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:28,361 INFO L225 Difference]: With dead ends: 370 [2022-11-26 00:51:28,361 INFO L226 Difference]: Without dead ends: 201 [2022-11-26 00:51:28,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:51:28,364 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 94 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 1107 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:28,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 1107 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-26 00:51:28,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-11-26 00:51:28,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2022-11-26 00:51:28,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 106 states have (on average 1.179245283018868) internal successors, (125), 109 states have internal predecessors, (125), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (74), 70 states have call predecessors, (74), 70 states have call successors, (74) [2022-11-26 00:51:28,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 272 transitions. [2022-11-26 00:51:28,401 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 272 transitions. Word has length 80 [2022-11-26 00:51:28,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:51:28,401 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 272 transitions. [2022-11-26 00:51:28,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-26 00:51:28,401 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 272 transitions. [2022-11-26 00:51:28,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-26 00:51:28,404 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:51:28,404 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 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] [2022-11-26 00:51:28,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:51:28,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:51:28,628 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:51:28,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:51:28,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1286962316, now seen corresponding path program 2 times [2022-11-26 00:51:28,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:51:28,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016708792] [2022-11-26 00:51:28,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:28,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:51:28,754 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:51:28,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1437932732] [2022-11-26 00:51:28,758 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:51:28,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:51:28,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:51:28,759 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:51:28,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:51:29,246 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-26 00:51:29,246 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:51:29,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 1910 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-26 00:51:29,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:51:29,293 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-26 00:51:29,293 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:51:29,293 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:51:29,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016708792] [2022-11-26 00:51:29,294 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:51:29,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437932732] [2022-11-26 00:51:29,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437932732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:51:29,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:51:29,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:51:29,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982197435] [2022-11-26 00:51:29,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:51:29,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:51:29,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:51:29,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:51:29,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:51:29,299 INFO L87 Difference]: Start difference. First operand 201 states and 272 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-26 00:51:29,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:29,795 INFO L93 Difference]: Finished difference Result 348 states and 463 transitions. [2022-11-26 00:51:29,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:51:29,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 89 [2022-11-26 00:51:29,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:29,804 INFO L225 Difference]: With dead ends: 348 [2022-11-26 00:51:29,810 INFO L226 Difference]: Without dead ends: 205 [2022-11-26 00:51:29,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:51:29,813 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 1 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:29,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 966 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-26 00:51:29,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2022-11-26 00:51:29,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2022-11-26 00:51:29,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 109 states have (on average 1.1743119266055047) internal successors, (128), 112 states have internal predecessors, (128), 73 states have call successors, (73), 21 states have call predecessors, (73), 22 states have return successors, (75), 71 states have call predecessors, (75), 70 states have call successors, (75) [2022-11-26 00:51:29,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 276 transitions. [2022-11-26 00:51:29,850 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 276 transitions. Word has length 89 [2022-11-26 00:51:29,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:51:29,851 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 276 transitions. [2022-11-26 00:51:29,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-26 00:51:29,851 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 276 transitions. [2022-11-26 00:51:29,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-26 00:51:29,862 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:51:29,862 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 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] [2022-11-26 00:51:29,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:51:30,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:51:30,076 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:51:30,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:51:30,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1373110104, now seen corresponding path program 1 times [2022-11-26 00:51:30,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:51:30,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588486039] [2022-11-26 00:51:30,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:30,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:51:30,169 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:51:30,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1298103705] [2022-11-26 00:51:30,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:30,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:51:30,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:51:30,171 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:51:30,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 00:51:30,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:51:30,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 2494 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-26 00:51:30,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:51:30,862 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-26 00:51:30,862 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:51:30,862 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:51:30,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588486039] [2022-11-26 00:51:30,862 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:51:30,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298103705] [2022-11-26 00:51:30,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298103705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:51:30,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:51:30,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-26 00:51:30,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857249946] [2022-11-26 00:51:30,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:51:30,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:51:30,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:51:30,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:51:30,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:51:30,865 INFO L87 Difference]: Start difference. First operand 205 states and 276 transitions. Second operand has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2022-11-26 00:51:31,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:31,727 INFO L93 Difference]: Finished difference Result 375 states and 501 transitions. [2022-11-26 00:51:31,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 00:51:31,730 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) Word has length 93 [2022-11-26 00:51:31,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:31,732 INFO L225 Difference]: With dead ends: 375 [2022-11-26 00:51:31,732 INFO L226 Difference]: Without dead ends: 203 [2022-11-26 00:51:31,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:51:31,734 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 129 mSDsluCounter, 1034 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:31,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 1248 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-26 00:51:31,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-11-26 00:51:31,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2022-11-26 00:51:31,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 108 states have (on average 1.1666666666666667) internal successors, (126), 110 states have internal predecessors, (126), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (71), 71 states have call predecessors, (71), 70 states have call successors, (71) [2022-11-26 00:51:31,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 270 transitions. [2022-11-26 00:51:31,756 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 270 transitions. Word has length 93 [2022-11-26 00:51:31,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:51:31,756 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 270 transitions. [2022-11-26 00:51:31,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2022-11-26 00:51:31,757 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 270 transitions. [2022-11-26 00:51:31,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-26 00:51:31,758 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:51:31,758 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 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] [2022-11-26 00:51:31,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-26 00:51:31,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:51:31,968 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:51:31,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:51:31,969 INFO L85 PathProgramCache]: Analyzing trace with hash -963749564, now seen corresponding path program 1 times [2022-11-26 00:51:31,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:51:31,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140369934] [2022-11-26 00:51:31,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:31,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:51:32,056 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:51:32,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1085584197] [2022-11-26 00:51:32,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:32,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:51:32,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:51:32,058 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:51:32,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac49d8a-927f-4787-800e-4a8295fd263c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-26 00:51:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:51:33,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 2758 conjuncts, 427 conjunts are in the unsatisfiable core [2022-11-26 00:51:33,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:51:33,252 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 [2022-11-26 00:51:34,445 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2022-11-26 00:51:34,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:51:34,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-26 00:51:34,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:51:34,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-26 00:51:35,671 INFO L321 Elim1Store]: treesize reduction 53, result has 32.9 percent of original size [2022-11-26 00:51:35,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 53 [2022-11-26 00:51:35,687 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 29 treesize of output 29 [2022-11-26 00:51:35,697 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 16 treesize of output 18 [2022-11-26 00:51:35,751 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 16 treesize of output 18 [2022-11-26 00:51:36,188 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-11-26 00:51:36,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 37 [2022-11-26 00:51:38,101 INFO L321 Elim1Store]: treesize reduction 129, result has 28.7 percent of original size [2022-11-26 00:51:38,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 51 treesize of output 85 [2022-11-26 00:51:38,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2022-11-26 00:51:38,167 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-26 00:51:38,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-26 00:51:39,428 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-26 00:51:39,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2022-11-26 00:51:49,801 INFO L321 Elim1Store]: treesize reduction 350, result has 34.3 percent of original size [2022-11-26 00:51:49,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 32 case distinctions, treesize of input 194 treesize of output 387 [2022-11-26 00:51:49,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:51:49,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:51:49,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:51:49,856 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:51:49,860 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:51:51,077 INFO L321 Elim1Store]: treesize reduction 79, result has 36.8 percent of original size [2022-11-26 00:51:51,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 8 select indices, 8 select index equivalence classes, 11 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 17 case distinctions, treesize of input 188 treesize of output 242 [2022-11-26 00:51:51,784 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-26 00:51:51,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 108 treesize of output 141 [2022-11-26 00:51:52,049 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-26 00:51:52,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 102 treesize of output 135 [2022-11-26 00:54:16,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 40 [2022-11-26 00:54:21,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:21,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33 [2022-11-26 00:54:24,444 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-26 00:54:24,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 33 [2022-11-26 00:54:28,710 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:28,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33 [2022-11-26 00:54:32,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:32,458 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-26 00:54:32,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 33 [2022-11-26 00:54:41,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:41,853 INFO L321 Elim1Store]: treesize reduction 21, result has 4.5 percent of original size [2022-11-26 00:54:41,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 27 [2022-11-26 00:54:43,203 INFO L217 Elim1Store]: Index analysis took 522 ms [2022-11-26 00:54:43,927 INFO L321 Elim1Store]: treesize reduction 21, result has 4.5 percent of original size [2022-11-26 00:54:43,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 27 [2022-11-26 00:54:47,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:54:47,469 INFO L321 Elim1Store]: treesize reduction 21, result has 4.5 percent of original size [2022-11-26 00:54:47,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 27 [2022-11-26 00:55:12,280 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-26 00:55:12,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 33 [2022-11-26 00:55:15,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:15,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33 [2022-11-26 00:55:19,018 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:55:19,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33 [2022-11-26 00:55:20,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:20,520 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-26 00:55:20,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 33 [2022-11-26 00:55:23,927 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:55:23,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33 [2022-11-26 00:55:30,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:30,181 INFO L321 Elim1Store]: treesize reduction 21, result has 4.5 percent of original size [2022-11-26 00:55:30,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 27 [2022-11-26 00:55:33,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:33,460 INFO L321 Elim1Store]: treesize reduction 21, result has 4.5 percent of original size [2022-11-26 00:55:33,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 27 [2022-11-26 00:55:39,516 INFO L321 Elim1Store]: treesize reduction 21, result has 4.5 percent of original size [2022-11-26 00:55:39,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 27 [2022-11-26 00:56:57,333 INFO L321 Elim1Store]: treesize reduction 77, result has 1.3 percent of original size [2022-11-26 00:56:57,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 case distinctions, treesize of input 542 treesize of output 498 [2022-11-26 00:56:58,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:56:58,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 3 [2022-11-26 00:56:58,775 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:56:58,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 3 [2022-11-26 00:56:59,602 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-26 00:56:59,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 7 [2022-11-26 00:59:23,430 WARN L233 SmtUtils]: Spent 16.50s on a formula simplification. DAG size of input: 202 DAG size of output: 54 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:59:23,430 INFO L321 Elim1Store]: treesize reduction 680, result has 11.1 percent of original size [2022-11-26 00:59:23,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 14 case distinctions, treesize of input 655 treesize of output 1047 [2022-11-26 01:02:09,888 INFO L217 Elim1Store]: Index analysis took 1855 ms [2022-11-26 01:02:20,755 WARN L233 SmtUtils]: Spent 10.24s on a formula simplification. DAG size of input: 240 DAG size of output: 1 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 01:02:20,756 INFO L321 Elim1Store]: treesize reduction 2339, result has 0.0 percent of original size [2022-11-26 01:02:20,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 27 case distinctions, treesize of input 621 treesize of output 483 [2022-11-26 01:02:30,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:30,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:31,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:31,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:31,538 INFO L190 IndexEqualityManager]: detected not equals via solver