./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af21642c-0f3c-4d68-97c4-18b18472f868/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af21642c-0f3c-4d68-97c4-18b18472f868/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af21642c-0f3c-4d68-97c4-18b18472f868/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af21642c-0f3c-4d68-97c4-18b18472f868/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af21642c-0f3c-4d68-97c4-18b18472f868/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af21642c-0f3c-4d68-97c4-18b18472f868/bin/utaipan-gh47qXpMRh --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 53c422310795c2e7f5b0f72e5a73eee871aa1645d7b73c98001e28d2bf239333 --- 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-2329fc7 [2022-12-14 10:01:53,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:01:53,845 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:01:53,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:01:53,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:01:53,860 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:01:53,861 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:01:53,862 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:01:53,863 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:01:53,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:01:53,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:01:53,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:01:53,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:01:53,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:01:53,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:01:53,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:01:53,868 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:01:53,869 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:01:53,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:01:53,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:01:53,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:01:53,874 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:01:53,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:01:53,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:01:53,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:01:53,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:01:53,878 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:01:53,879 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:01:53,879 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:01:53,880 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:01:53,880 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:01:53,881 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:01:53,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:01:53,882 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:01:53,882 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:01:53,883 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:01:53,883 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:01:53,883 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:01:53,883 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:01:53,884 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:01:53,884 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:01:53,885 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af21642c-0f3c-4d68-97c4-18b18472f868/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 10:01:53,900 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:01:53,900 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:01:53,900 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:01:53,901 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:01:53,901 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:01:53,901 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:01:53,901 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:01:53,901 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:01:53,902 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:01:53,902 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:01:53,902 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:01:53,902 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:01:53,902 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:01:53,902 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:01:53,902 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:01:53,902 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:01:53,903 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:01:53,903 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:01:53,903 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:01:53,903 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:01:53,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:01:53,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:01:53,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:01:53,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:01:53,904 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:01:53,904 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:01:53,904 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:01:53,904 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:01:53,904 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:01:53,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:01:53,905 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:01:53,905 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:01:53,905 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:01:53,905 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:01:53,905 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:01:53,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:01:53,905 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:01:53,905 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:01:53,905 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_af21642c-0f3c-4d68-97c4-18b18472f868/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af21642c-0f3c-4d68-97c4-18b18472f868/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53c422310795c2e7f5b0f72e5a73eee871aa1645d7b73c98001e28d2bf239333 [2022-12-14 10:01:54,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:01:54,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:01:54,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:01:54,108 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:01:54,109 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:01:54,110 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af21642c-0f3c-4d68-97c4-18b18472f868/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i [2022-12-14 10:01:56,679 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:01:56,967 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:01:56,968 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af21642c-0f3c-4d68-97c4-18b18472f868/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i [2022-12-14 10:01:56,985 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af21642c-0f3c-4d68-97c4-18b18472f868/bin/utaipan-gh47qXpMRh/data/df8363889/50e785d756464147957082fe8c9736e8/FLAGb46b634c1 [2022-12-14 10:01:57,259 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af21642c-0f3c-4d68-97c4-18b18472f868/bin/utaipan-gh47qXpMRh/data/df8363889/50e785d756464147957082fe8c9736e8 [2022-12-14 10:01:57,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:01:57,267 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:01:57,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:01:57,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:01:57,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:01:57,285 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:01:57" (1/1) ... [2022-12-14 10:01:57,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c415f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:57, skipping insertion in model container [2022-12-14 10:01:57,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:01:57" (1/1) ... [2022-12-14 10:01:57,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:01:57,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:01:57,628 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_af21642c-0f3c-4d68-97c4-18b18472f868/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4495,4508] [2022-12-14 10:01:57,634 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_af21642c-0f3c-4d68-97c4-18b18472f868/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4555,4568] [2022-12-14 10:01:58,158 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 10:01:58,223 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:01:58,223 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:01:58,224 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:01:58,224 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:01:58,225 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:01:58,241 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:01:58,242 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:01:58,243 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:01:58,244 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:01:58,245 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:01:58,246 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:01:58,247 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:01:58,247 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:01:58,304 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 10:01:58,304 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 10:01:58,305 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 10:01:58,308 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 10:01:58,309 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 10:01:58,310 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 10:01:58,489 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 10:01:58,490 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 10:01:58,490 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 10:01:58,491 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 10:01:58,492 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 10:01:58,493 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 10:01:58,493 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 10:01:58,494 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 10:01:58,494 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 10:01:58,495 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 10:01:58,495 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 10:01:58,601 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:01:58,606 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:01:58,638 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 10:01:58,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:01:58,663 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:01:58,672 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_af21642c-0f3c-4d68-97c4-18b18472f868/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4495,4508] [2022-12-14 10:01:58,673 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_af21642c-0f3c-4d68-97c4-18b18472f868/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4555,4568] [2022-12-14 10:01:58,698 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 10:01:58,709 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:01:58,710 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:01:58,710 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:01:58,710 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:01:58,711 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:01:58,716 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:01:58,717 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:01:58,718 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:01:58,718 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:01:58,719 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:01:58,719 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:01:58,720 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:01:58,720 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:01:58,725 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 10:01:58,725 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 10:01:58,726 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 10:01:58,728 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 10:01:58,729 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 10:01:58,730 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 10:01:58,746 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 10:01:58,747 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 10:01:58,748 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 10:01:58,748 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 10:01:58,749 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 10:01:58,749 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 10:01:58,750 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 10:01:58,750 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 10:01:58,751 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 10:01:58,751 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 10:01:58,751 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 10:01:58,772 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:01:58,776 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:01:58,792 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 10:01:58,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:01:58,938 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:01:58,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:58 WrapperNode [2022-12-14 10:01:58,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:01:58,939 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:01:58,939 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:01:58,939 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:01:58,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:58" (1/1) ... [2022-12-14 10:01:58,995 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:58" (1/1) ... [2022-12-14 10:01:59,043 INFO L138 Inliner]: procedures = 690, calls = 1681, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 590 [2022-12-14 10:01:59,044 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:01:59,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:01:59,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:01:59,045 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:01:59,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:58" (1/1) ... [2022-12-14 10:01:59,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:58" (1/1) ... [2022-12-14 10:01:59,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:58" (1/1) ... [2022-12-14 10:01:59,061 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:58" (1/1) ... [2022-12-14 10:01:59,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:58" (1/1) ... [2022-12-14 10:01:59,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:58" (1/1) ... [2022-12-14 10:01:59,093 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:58" (1/1) ... [2022-12-14 10:01:59,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:58" (1/1) ... [2022-12-14 10:01:59,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:01:59,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:01:59,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:01:59,107 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:01:59,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:58" (1/1) ... [2022-12-14 10:01:59,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:01:59,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af21642c-0f3c-4d68-97c4-18b18472f868/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:01:59,135 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af21642c-0f3c-4d68-97c4-18b18472f868/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:01:59,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af21642c-0f3c-4d68-97c4-18b18472f868/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:01:59,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 10:01:59,169 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-12-14 10:01:59,169 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-12-14 10:01:59,169 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-12-14 10:01:59,169 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-12-14 10:01:59,169 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-14 10:01:59,169 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-14 10:01:59,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 10:01:59,170 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-12-14 10:01:59,170 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-12-14 10:01:59,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 10:01:59,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 10:01:59,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 10:01:59,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:01:59,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 10:01:59,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:01:59,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:01:59,170 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-14 10:01:59,170 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-14 10:01:59,171 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-12-14 10:01:59,171 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-12-14 10:01:59,171 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-12-14 10:01:59,171 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-12-14 10:01:59,171 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-12-14 10:01:59,171 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-12-14 10:01:59,171 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 10:01:59,171 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 10:01:59,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 10:01:59,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 10:01:59,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 10:01:59,172 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-12-14 10:01:59,172 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-12-14 10:01:59,172 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-12-14 10:01:59,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-12-14 10:01:59,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 10:01:59,172 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-12-14 10:01:59,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-12-14 10:01:59,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:01:59,382 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:01:59,385 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:02:00,013 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:02:00,126 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:02:00,126 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 10:02:00,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:02:00 BoogieIcfgContainer [2022-12-14 10:02:00,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:02:00,131 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:02:00,131 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:02:00,134 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:02:00,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:01:57" (1/3) ... [2022-12-14 10:02:00,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd67008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:02:00, skipping insertion in model container [2022-12-14 10:02:00,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:58" (2/3) ... [2022-12-14 10:02:00,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd67008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:02:00, skipping insertion in model container [2022-12-14 10:02:00,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:02:00" (3/3) ... [2022-12-14 10:02:00,137 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_length_harness.i [2022-12-14 10:02:00,156 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:02:00,156 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 10:02:00,195 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:02:00,200 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;@786f8cb9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:02:00,200 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 10:02:00,204 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 54 states have (on average 1.1851851851851851) internal successors, (64), 55 states have internal predecessors, (64), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-12-14 10:02:00,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-14 10:02:00,211 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:02:00,212 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:02:00,212 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:02:00,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:02:00,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1878182737, now seen corresponding path program 1 times [2022-12-14 10:02:00,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:02:00,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471447325] [2022-12-14 10:02:00,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:02:00,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:02:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:02:00,813 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-14 10:02:00,813 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:02:00,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471447325] [2022-12-14 10:02:00,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471447325] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:02:00,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974082323] [2022-12-14 10:02:00,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:02:00,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:02:00,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af21642c-0f3c-4d68-97c4-18b18472f868/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:02:00,816 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af21642c-0f3c-4d68-97c4-18b18472f868/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:02:00,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af21642c-0f3c-4d68-97c4-18b18472f868/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 10:02:01,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:02:01,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 2050 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 10:02:01,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:02:01,255 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 10:02:01,255 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:02:01,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974082323] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:02:01,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 10:02:01,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-12-14 10:02:01,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292105903] [2022-12-14 10:02:01,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:02:01,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:02:01,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:02:01,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:02:01,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:02:01,294 INFO L87 Difference]: Start difference. First operand has 99 states, 54 states have (on average 1.1851851851851851) internal successors, (64), 55 states have internal predecessors, (64), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-14 10:02:01,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:02:01,738 INFO L93 Difference]: Finished difference Result 169 states and 225 transitions. [2022-12-14 10:02:01,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:02:01,741 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 56 [2022-12-14 10:02:01,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:02:01,749 INFO L225 Difference]: With dead ends: 169 [2022-12-14 10:02:01,749 INFO L226 Difference]: Without dead ends: 95 [2022-12-14 10:02:01,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-12-14 10:02:01,753 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 22 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:02:01,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 348 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 10:02:01,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-12-14 10:02:01,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2022-12-14 10:02:01,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 51 states have (on average 1.1176470588235294) internal successors, (57), 53 states have internal predecessors, (57), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 28 states have call predecessors, (30), 28 states have call successors, (30) [2022-12-14 10:02:01,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 117 transitions. [2022-12-14 10:02:01,791 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 117 transitions. Word has length 56 [2022-12-14 10:02:01,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:02:01,792 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 117 transitions. [2022-12-14 10:02:01,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-14 10:02:01,792 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 117 transitions. [2022-12-14 10:02:01,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-14 10:02:01,795 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:02:01,795 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:02:01,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af21642c-0f3c-4d68-97c4-18b18472f868/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 10:02:01,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af21642c-0f3c-4d68-97c4-18b18472f868/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-14 10:02:01,997 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:02:01,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:02:01,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1374220878, now seen corresponding path program 1 times [2022-12-14 10:02:01,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:02:01,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406883224] [2022-12-14 10:02:01,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:02:01,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:02:02,184 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 10:02:02,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [808921] [2022-12-14 10:02:02,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:02:02,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:02:02,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af21642c-0f3c-4d68-97c4-18b18472f868/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:02:02,185 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af21642c-0f3c-4d68-97c4-18b18472f868/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:02:02,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af21642c-0f3c-4d68-97c4-18b18472f868/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 10:02:02,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:02:02,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 2182 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 10:02:02,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:02:02,620 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-14 10:02:02,620 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:02:02,620 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:02:02,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406883224] [2022-12-14 10:02:02,620 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 10:02:02,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808921] [2022-12-14 10:02:02,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808921] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:02:02,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:02:02,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:02:02,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248307555] [2022-12-14 10:02:02,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:02:02,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 10:02:02,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:02:02,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 10:02:02,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:02:02,622 INFO L87 Difference]: Start difference. First operand 95 states and 117 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2022-12-14 10:02:02,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:02:02,940 INFO L93 Difference]: Finished difference Result 148 states and 179 transitions. [2022-12-14 10:02:02,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:02:02,941 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 65 [2022-12-14 10:02:02,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:02:02,942 INFO L225 Difference]: With dead ends: 148 [2022-12-14 10:02:02,942 INFO L226 Difference]: Without dead ends: 93 [2022-12-14 10:02:02,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-14 10:02:02,944 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 22 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:02:02,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 469 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 10:02:02,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-12-14 10:02:02,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2022-12-14 10:02:02,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 50 states have (on average 1.1) internal successors, (55), 51 states have internal predecessors, (55), 30 states have call successors, (30), 13 states have call predecessors, (30), 12 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2022-12-14 10:02:02,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 113 transitions. [2022-12-14 10:02:02,956 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 113 transitions. Word has length 65 [2022-12-14 10:02:02,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:02:02,956 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 113 transitions. [2022-12-14 10:02:02,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2022-12-14 10:02:02,956 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 113 transitions. [2022-12-14 10:02:02,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-12-14 10:02:02,958 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:02:02,959 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:02:02,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af21642c-0f3c-4d68-97c4-18b18472f868/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 10:02:03,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af21642c-0f3c-4d68-97c4-18b18472f868/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:02:03,159 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:02:03,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:02:03,160 INFO L85 PathProgramCache]: Analyzing trace with hash -706249424, now seen corresponding path program 1 times [2022-12-14 10:02:03,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:02:03,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278077604] [2022-12-14 10:02:03,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:02:03,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:02:03,222 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 10:02:03,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1436968965] [2022-12-14 10:02:03,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:02:03,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:02:03,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af21642c-0f3c-4d68-97c4-18b18472f868/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:02:03,223 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af21642c-0f3c-4d68-97c4-18b18472f868/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:02:03,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af21642c-0f3c-4d68-97c4-18b18472f868/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 10:02:03,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:02:03,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 2446 conjuncts, 305 conjunts are in the unsatisfiable core [2022-12-14 10:02:03,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:02:03,725 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 [2022-12-14 10:02:04,555 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 [2022-12-14 10:02:04,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:02:04,672 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 [2022-12-14 10:02:04,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:02:04,688 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 [2022-12-14 10:02:05,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:02:05,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 45 [2022-12-14 10:02:05,951 INFO L321 Elim1Store]: treesize reduction 53, result has 32.9 percent of original size [2022-12-14 10:02:05,951 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 [2022-12-14 10:02:05,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:02:05,966 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 43 treesize of output 31 [2022-12-14 10:02:05,981 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 [2022-12-14 10:02:08,572 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-12-14 10:02:08,572 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 [2022-12-14 10:02:12,950 INFO L321 Elim1Store]: treesize reduction 276, result has 36.0 percent of original size [2022-12-14 10:02:12,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 151 treesize of output 318 [2022-12-14 10:02:12,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:02:12,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:02:12,971 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:02:12,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:02:12,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:02:12,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 162 [2022-12-14 10:03:54,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:03:54,940 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-12-14 10:03:54,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 76 treesize of output 60 [2022-12-14 10:03:54,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2022-12-14 10:04:03,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:04:03,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 60 [2022-12-14 10:04:03,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2022-12-14 10:04:09,372 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:04:09,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 60 [2022-12-14 10:04:09,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2022-12-14 10:04:11,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 60 [2022-12-14 10:04:11,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2022-12-14 10:04:13,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 60 [2022-12-14 10:04:13,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2022-12-14 10:04:15,705 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:04:15,706 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:04:15,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 60 [2022-12-14 10:04:15,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2022-12-14 10:04:17,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:04:17,930 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-12-14 10:04:17,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 76 treesize of output 60 [2022-12-14 10:04:17,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2022-12-14 10:04:20,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:04:20,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 60 [2022-12-14 10:04:20,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2022-12-14 10:04:28,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:04:28,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:04:28,662 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-12-14 10:04:28,663 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 2 case distinctions, treesize of input 76 treesize of output 72 [2022-12-14 10:04:28,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2022-12-14 10:04:28,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:04:28,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:04:28,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:04:28,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:04:28,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 43 [2022-12-14 10:06:29,362 WARN L233 SmtUtils]: Spent 5.68s on a formula simplification. DAG size of input: 418 DAG size of output: 163 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 10:06:29,362 INFO L321 Elim1Store]: treesize reduction 1661, result has 17.7 percent of original size [2022-12-14 10:06:29,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 56 case distinctions, treesize of input 554 treesize of output 1173