./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/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_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/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_12949e33-3c0c-4edc-b03f-f314ec88589a/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 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c --- 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 [2022-11-25 22:18:21,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:18:21,424 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:18:21,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:18:21,446 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:18:21,447 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:18:21,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:18:21,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:18:21,452 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:18:21,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:18:21,455 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:18:21,456 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:18:21,457 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:18:21,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:18:21,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:18:21,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:18:21,462 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:18:21,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:18:21,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:18:21,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:18:21,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:18:21,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:18:21,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:18:21,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:18:21,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:18:21,478 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:18:21,478 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:18:21,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:18:21,480 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:18:21,481 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:18:21,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:18:21,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:18:21,483 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:18:21,485 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:18:21,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:18:21,486 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:18:21,487 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:18:21,488 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:18:21,488 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:18:21,489 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:18:21,490 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:18:21,491 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 22:18:21,520 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:18:21,524 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:18:21,526 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:18:21,526 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:18:21,527 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:18:21,527 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:18:21,528 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:18:21,528 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:18:21,528 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:18:21,528 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:18:21,530 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:18:21,530 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:18:21,530 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:18:21,530 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:18:21,530 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:18:21,531 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:18:21,531 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:18:21,531 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:18:21,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:18:21,532 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:18:21,532 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:18:21,533 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:18:21,533 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:18:21,533 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:18:21,533 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:18:21,534 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:18:21,534 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:18:21,534 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:18:21,534 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:18:21,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:18:21,535 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:18:21,535 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:18:21,536 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:18:21,536 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:18:21,536 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:18:21,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:18:21,536 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:18:21,537 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:18:21,537 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_12949e33-3c0c-4edc-b03f-f314ec88589a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c [2022-11-25 22:18:21,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:18:21,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:18:21,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:18:21,897 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:18:21,897 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:18:21,899 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2022-11-25 22:18:25,022 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:18:25,456 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:18:25,457 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2022-11-25 22:18:25,493 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/data/1c337dcf4/6f51f785fe84441fa8616ada5861353c/FLAG8bf73f484 [2022-11-25 22:18:25,515 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/data/1c337dcf4/6f51f785fe84441fa8616ada5861353c [2022-11-25 22:18:25,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:18:25,522 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:18:25,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:18:25,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:18:25,531 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:18:25,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:18:25" (1/1) ... [2022-11-25 22:18:25,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15844a44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:25, skipping insertion in model container [2022-11-25 22:18:25,535 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:18:25" (1/1) ... [2022-11-25 22:18:25,543 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:18:25,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:18:25,882 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_12949e33-3c0c-4edc-b03f-f314ec88589a/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2022-11-25 22:18:25,890 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_12949e33-3c0c-4edc-b03f-f314ec88589a/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2022-11-25 22:18:26,797 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:26,799 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:26,800 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:26,801 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:26,802 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:26,818 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:26,819 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:26,824 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:26,825 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:26,827 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:26,828 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:26,829 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:26,829 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:26,910 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:18:26,911 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:18:26,912 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:18:26,917 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 22:18:26,919 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 22:18:26,921 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 22:18:27,042 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 22:18:27,044 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 22:18:27,045 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 22:18:27,047 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 22:18:27,048 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 22:18:27,050 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 22:18:27,051 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 22:18:27,052 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 22:18:27,053 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 22:18:27,053 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 22:18:27,054 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 22:18:27,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:18:27,158 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:18:27,173 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_12949e33-3c0c-4edc-b03f-f314ec88589a/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2022-11-25 22:18:27,173 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_12949e33-3c0c-4edc-b03f-f314ec88589a/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2022-11-25 22:18:27,254 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:27,261 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:27,263 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:27,263 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:27,266 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:27,277 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:27,282 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:27,287 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:27,288 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:27,291 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:27,292 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:27,293 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:27,294 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:27,313 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:18:27,314 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:18:27,315 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:18:27,322 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 22:18:27,327 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 22:18:27,328 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 22:18:27,343 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 22:18:27,346 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 22:18:27,349 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 22:18:27,350 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 22:18:27,352 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 22:18:27,353 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 22:18:27,354 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 22:18:27,354 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 22:18:27,355 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 22:18:27,356 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 22:18:27,356 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 22:18:27,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:18:27,579 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:18:27,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:27 WrapperNode [2022-11-25 22:18:27,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:18:27,581 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:18:27,581 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:18:27,581 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:18:27,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:27" (1/1) ... [2022-11-25 22:18:27,637 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:27" (1/1) ... [2022-11-25 22:18:27,674 INFO L138 Inliner]: procedures = 592, calls = 608, calls flagged for inlining = 38, calls inlined = 6, statements flattened = 84 [2022-11-25 22:18:27,680 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:18:27,681 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:18:27,681 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:18:27,681 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:18:27,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:27" (1/1) ... [2022-11-25 22:18:27,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:27" (1/1) ... [2022-11-25 22:18:27,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:27" (1/1) ... [2022-11-25 22:18:27,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:27" (1/1) ... [2022-11-25 22:18:27,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:27" (1/1) ... [2022-11-25 22:18:27,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:27" (1/1) ... [2022-11-25 22:18:27,753 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:27" (1/1) ... [2022-11-25 22:18:27,755 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:27" (1/1) ... [2022-11-25 22:18:27,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:18:27,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:18:27,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:18:27,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:18:27,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:27" (1/1) ... [2022-11-25 22:18:27,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:18:27,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:18:27,792 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:18:27,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:18:27,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:18:27,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:18:27,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 22:18:27,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 22:18:27,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:18:27,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:18:27,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:18:27,838 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 22:18:27,839 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 22:18:27,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:18:27,839 INFO L130 BoogieDeclarations]: Found specification of procedure assert_all_bytes_are [2022-11-25 22:18:27,839 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_all_bytes_are [2022-11-25 22:18:27,839 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-25 22:18:27,840 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-25 22:18:27,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:18:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:18:28,141 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:18:28,144 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:18:28,384 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:18:28,433 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:18:28,433 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 22:18:28,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:18:28 BoogieIcfgContainer [2022-11-25 22:18:28,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:18:28,438 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:18:28,438 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:18:28,442 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:18:28,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:18:25" (1/3) ... [2022-11-25 22:18:28,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cdc458c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:18:28, skipping insertion in model container [2022-11-25 22:18:28,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:27" (2/3) ... [2022-11-25 22:18:28,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cdc458c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:18:28, skipping insertion in model container [2022-11-25 22:18:28,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:18:28" (3/3) ... [2022-11-25 22:18:28,445 INFO L112 eAbstractionObserver]: Analyzing ICFG memset_override_0_harness.i [2022-11-25 22:18:28,465 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:18:28,465 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 22:18:28,517 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:18:28,526 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;@7335cf9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:18:28,526 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 22:18:28,532 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 28 states have internal predecessors, (34), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-25 22:18:28,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-25 22:18:28,541 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:18:28,542 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:18:28,542 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:18:28,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:18:28,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1342933705, now seen corresponding path program 1 times [2022-11-25 22:18:28,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:18:28,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039990756] [2022-11-25 22:18:28,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:28,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:18:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:18:29,814 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-25 22:18:29,815 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:18:29,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039990756] [2022-11-25 22:18:29,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039990756] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:18:29,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337190229] [2022-11-25 22:18:29,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:29,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:18:29,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:18:29,823 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:18:29,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:18:30,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:18:30,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-25 22:18:30,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:18:30,422 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-25 22:18:30,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:18:30,811 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-25 22:18:30,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337190229] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:18:30,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [474192149] [2022-11-25 22:18:30,850 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2022-11-25 22:18:30,850 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:18:30,854 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:18:30,860 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:18:30,860 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:18:30,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:30,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:30,997 INFO L321 Elim1Store]: treesize reduction 60, result has 33.3 percent of original size [2022-11-25 22:18:30,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 49 [2022-11-25 22:18:31,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:31,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:31,118 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-25 22:18:31,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-25 22:18:32,587 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 137 for LOIs [2022-11-25 22:18:32,683 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 8 for LOIs [2022-11-25 22:18:32,684 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:18:36,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [474192149] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:18:36,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 22:18:36,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [7, 7, 8] total 23 [2022-11-25 22:18:36,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442421438] [2022-11-25 22:18:36,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:18:36,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 22:18:36,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:18:36,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 22:18:36,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2022-11-25 22:18:36,418 INFO L87 Difference]: Start difference. First operand has 48 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 28 states have internal predecessors, (34), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 13 states, 9 states have (on average 1.0) internal successors, (9), 8 states have internal predecessors, (9), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-25 22:18:38,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:18:38,161 INFO L93 Difference]: Finished difference Result 125 states and 186 transitions. [2022-11-25 22:18:38,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 22:18:38,164 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 9 states have (on average 1.0) internal successors, (9), 8 states have internal predecessors, (9), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 24 [2022-11-25 22:18:38,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:18:38,173 INFO L225 Difference]: With dead ends: 125 [2022-11-25 22:18:38,173 INFO L226 Difference]: Without dead ends: 82 [2022-11-25 22:18:38,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 49 SyntacticMatches, 7 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2022-11-25 22:18:38,179 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 119 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:18:38,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 169 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-25 22:18:38,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-11-25 22:18:38,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 50. [2022-11-25 22:18:38,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 30 states have internal predecessors, (33), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-25 22:18:38,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 65 transitions. [2022-11-25 22:18:38,272 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 65 transitions. Word has length 24 [2022-11-25 22:18:38,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:18:38,274 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 65 transitions. [2022-11-25 22:18:38,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 9 states have (on average 1.0) internal successors, (9), 8 states have internal predecessors, (9), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-25 22:18:38,274 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 65 transitions. [2022-11-25 22:18:38,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-25 22:18:38,277 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:18:38,278 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:18:38,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:18:38,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-25 22:18:38,485 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:18:38,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:18:38,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1152670264, now seen corresponding path program 1 times [2022-11-25 22:18:38,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:18:38,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24534275] [2022-11-25 22:18:38,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:38,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:18:38,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:18:38,628 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 22:18:38,629 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:18:38,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24534275] [2022-11-25 22:18:38,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24534275] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:18:38,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:18:38,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:18:38,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212055388] [2022-11-25 22:18:38,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:18:38,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:18:38,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:18:38,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:18:38,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:18:38,633 INFO L87 Difference]: Start difference. First operand 50 states and 65 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-25 22:18:38,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:18:38,703 INFO L93 Difference]: Finished difference Result 85 states and 109 transitions. [2022-11-25 22:18:38,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:18:38,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 25 [2022-11-25 22:18:38,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:18:38,707 INFO L225 Difference]: With dead ends: 85 [2022-11-25 22:18:38,708 INFO L226 Difference]: Without dead ends: 51 [2022-11-25 22:18:38,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:18:38,710 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:18:38,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:18:38,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-25 22:18:38,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-11-25 22:18:38,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 31 states have internal predecessors, (34), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-25 22:18:38,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 66 transitions. [2022-11-25 22:18:38,761 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 66 transitions. Word has length 25 [2022-11-25 22:18:38,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:18:38,761 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 66 transitions. [2022-11-25 22:18:38,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-25 22:18:38,761 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 66 transitions. [2022-11-25 22:18:38,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-25 22:18:38,764 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:18:38,764 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:18:38,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:18:38,765 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:18:38,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:18:38,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1319363776, now seen corresponding path program 1 times [2022-11-25 22:18:38,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:18:38,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603756993] [2022-11-25 22:18:38,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:38,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:18:38,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:18:39,305 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-25 22:18:39,306 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:18:39,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603756993] [2022-11-25 22:18:39,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603756993] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:18:39,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564424454] [2022-11-25 22:18:39,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:39,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:18:39,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:18:39,311 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:18:39,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 22:18:39,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:18:39,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-25 22:18:39,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:18:39,629 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 22:18:39,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:18:39,852 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-25 22:18:39,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [564424454] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:18:39,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [897367386] [2022-11-25 22:18:39,863 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2022-11-25 22:18:39,863 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:18:39,864 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:18:39,865 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:18:39,865 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:18:39,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:39,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:39,952 INFO L321 Elim1Store]: treesize reduction 60, result has 33.3 percent of original size [2022-11-25 22:18:39,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 49 [2022-11-25 22:18:39,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:39,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:40,040 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-25 22:18:40,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-25 22:18:40,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 57 treesize of output 1 [2022-11-25 22:18:40,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 57 treesize of output 1 [2022-11-25 22:18:40,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:40,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 62 [2022-11-25 22:18:40,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 57 treesize of output 1 [2022-11-25 22:18:40,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 57 treesize of output 1 [2022-11-25 22:18:40,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 57 treesize of output 1 [2022-11-25 22:18:40,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:18:41,022 INFO L321 Elim1Store]: treesize reduction 224, result has 6.3 percent of original size [2022-11-25 22:18:41,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 593 treesize of output 590 [2022-11-25 22:18:41,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 57 treesize of output 1 [2022-11-25 22:18:41,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 57 treesize of output 1 [2022-11-25 22:18:41,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 45 treesize of output 41 [2022-11-25 22:18:41,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 57 treesize of output 1 [2022-11-25 22:18:41,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 57 treesize of output 1 [2022-11-25 22:18:41,581 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 23 for LOIs [2022-11-25 22:18:41,596 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 8 for LOIs [2022-11-25 22:18:41,598 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 22:18:44,374 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '849#(and (= (mod __VERIFIER_assert_~cond 256) 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= |#NULL.offset| 0) (exists ((|v_ULTIMATE.start_memset_override_0_impl_~c#1_BEFORE_CALL_13| Int)) (and (<= |v_ULTIMATE.start_memset_override_0_impl_~c#1_BEFORE_CALL_13| 2147483647) (<= 0 (+ |v_ULTIMATE.start_memset_override_0_impl_~c#1_BEFORE_CALL_13| 2147483648)) (= (ite (= (ite (= |v_ULTIMATE.start_memset_override_0_impl_~c#1_BEFORE_CALL_13| 0) 1 0) 0) 0 1) |__VERIFIER_assert_#in~cond|))) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-25 22:18:44,374 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 22:18:44,374 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 22:18:44,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 7] total 14 [2022-11-25 22:18:44,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532873535] [2022-11-25 22:18:44,375 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 22:18:44,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 22:18:44,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:18:44,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 22:18:44,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=647, Unknown=0, NotChecked=0, Total=756 [2022-11-25 22:18:44,377 INFO L87 Difference]: Start difference. First operand 51 states and 66 transitions. Second operand has 14 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 12 states have internal predecessors, (20), 6 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 6 states have call successors, (9) [2022-11-25 22:18:44,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:18:44,671 INFO L93 Difference]: Finished difference Result 58 states and 72 transitions. [2022-11-25 22:18:44,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 22:18:44,674 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 12 states have internal predecessors, (20), 6 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 6 states have call successors, (9) Word has length 26 [2022-11-25 22:18:44,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:18:44,675 INFO L225 Difference]: With dead ends: 58 [2022-11-25 22:18:44,675 INFO L226 Difference]: Without dead ends: 56 [2022-11-25 22:18:44,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 50 SyntacticMatches, 7 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=131, Invalid=799, Unknown=0, NotChecked=0, Total=930 [2022-11-25 22:18:44,676 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 77 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:18:44,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 254 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:18:44,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-25 22:18:44,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 48. [2022-11-25 22:18:44,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 29 states have internal predecessors, (33), 15 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 22:18:44,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 61 transitions. [2022-11-25 22:18:44,707 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 61 transitions. Word has length 26 [2022-11-25 22:18:44,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:18:44,707 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 61 transitions. [2022-11-25 22:18:44,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 12 states have internal predecessors, (20), 6 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 6 states have call successors, (9) [2022-11-25 22:18:44,708 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 61 transitions. [2022-11-25 22:18:44,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-25 22:18:44,709 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:18:44,709 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:18:44,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-25 22:18:44,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:18:44,915 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:18:44,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:18:44,916 INFO L85 PathProgramCache]: Analyzing trace with hash -16112764, now seen corresponding path program 1 times [2022-11-25 22:18:44,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:18:44,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568655614] [2022-11-25 22:18:44,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:44,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:18:44,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:18:45,366 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 22:18:45,366 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:18:45,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568655614] [2022-11-25 22:18:45,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568655614] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:18:45,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:18:45,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 22:18:45,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032109970] [2022-11-25 22:18:45,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:18:45,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 22:18:45,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:18:45,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 22:18:45,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 22:18:45,370 INFO L87 Difference]: Start difference. First operand 48 states and 61 transitions. Second operand has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-25 22:18:45,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:18:45,629 INFO L93 Difference]: Finished difference Result 71 states and 92 transitions. [2022-11-25 22:18:45,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 22:18:45,630 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 30 [2022-11-25 22:18:45,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:18:45,631 INFO L225 Difference]: With dead ends: 71 [2022-11-25 22:18:45,631 INFO L226 Difference]: Without dead ends: 69 [2022-11-25 22:18:45,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-25 22:18:45,634 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 57 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:18:45,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 308 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:18:45,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-25 22:18:45,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 57. [2022-11-25 22:18:45,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 35 states have internal predecessors, (38), 18 states have call successors, (18), 6 states have call predecessors, (18), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-25 22:18:45,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 72 transitions. [2022-11-25 22:18:45,678 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 72 transitions. Word has length 30 [2022-11-25 22:18:45,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:18:45,679 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 72 transitions. [2022-11-25 22:18:45,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-25 22:18:45,681 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 72 transitions. [2022-11-25 22:18:45,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 22:18:45,682 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:18:45,682 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2022-11-25 22:18:45,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 22:18:45,686 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:18:45,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:18:45,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1067521989, now seen corresponding path program 1 times [2022-11-25 22:18:45,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:18:45,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014608725] [2022-11-25 22:18:45,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:45,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:18:45,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:18:45,786 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 22:18:45,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:18:45,886 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 22:18:45,886 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 22:18:45,888 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 22:18:45,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 22:18:45,893 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-25 22:18:45,897 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:18:45,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:18:45 BoogieIcfgContainer [2022-11-25 22:18:45,953 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:18:45,953 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:18:45,953 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:18:45,953 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:18:45,954 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:18:28" (3/4) ... [2022-11-25 22:18:45,958 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 22:18:45,958 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:18:45,959 INFO L158 Benchmark]: Toolchain (without parser) took 20437.20ms. Allocated memory was 197.1MB in the beginning and 352.3MB in the end (delta: 155.2MB). Free memory was 145.8MB in the beginning and 177.2MB in the end (delta: -31.4MB). Peak memory consumption was 126.8MB. Max. memory is 16.1GB. [2022-11-25 22:18:45,959 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 136.3MB. Free memory is still 77.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:18:45,959 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2052.34ms. Allocated memory is still 197.1MB. Free memory was 145.7MB in the beginning and 110.2MB in the end (delta: 35.4MB). Peak memory consumption was 69.0MB. Max. memory is 16.1GB. [2022-11-25 22:18:45,960 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.79ms. Allocated memory is still 197.1MB. Free memory was 110.2MB in the beginning and 106.1MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 22:18:45,960 INFO L158 Benchmark]: Boogie Preprocessor took 78.49ms. Allocated memory is still 197.1MB. Free memory was 106.1MB in the beginning and 104.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:18:45,960 INFO L158 Benchmark]: RCFGBuilder took 675.88ms. Allocated memory is still 197.1MB. Free memory was 104.0MB in the beginning and 81.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-25 22:18:45,961 INFO L158 Benchmark]: TraceAbstraction took 17514.55ms. Allocated memory was 197.1MB in the beginning and 352.3MB in the end (delta: 155.2MB). Free memory was 79.9MB in the beginning and 178.3MB in the end (delta: -98.4MB). Peak memory consumption was 55.7MB. Max. memory is 16.1GB. [2022-11-25 22:18:45,961 INFO L158 Benchmark]: Witness Printer took 5.31ms. Allocated memory is still 352.3MB. Free memory was 178.3MB in the beginning and 177.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:18:45,967 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 136.3MB. Free memory is still 77.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2052.34ms. Allocated memory is still 197.1MB. Free memory was 145.7MB in the beginning and 110.2MB in the end (delta: 35.4MB). Peak memory consumption was 69.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 99.79ms. Allocated memory is still 197.1MB. Free memory was 110.2MB in the beginning and 106.1MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.49ms. Allocated memory is still 197.1MB. Free memory was 106.1MB in the beginning and 104.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 675.88ms. Allocated memory is still 197.1MB. Free memory was 104.0MB in the beginning and 81.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 17514.55ms. Allocated memory was 197.1MB in the beginning and 352.3MB in the end (delta: 155.2MB). Free memory was 79.9MB in the beginning and 178.3MB in the end (delta: -98.4MB). Peak memory consumption was 55.7MB. Max. memory is 16.1GB. * Witness Printer took 5.31ms. Allocated memory is still 352.3MB. Free memory was 178.3MB in the beginning and 177.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 5885. Possible FailurePath: [L5919] CALL memset_override_0_harness() [L5906] short d1[160]; [L5907] short d2[160]; [L5908] int c = __VERIFIER_nondet_int(); [L5909] CALL assume_abort_if_not(c == 0) VAL [\old(cond)=1] [L211] COND FALSE !(!cond) [L5909] RET assume_abort_if_not(c == 0) VAL [c=0, d1={5:0}, d2={4:0}] [L5911] unsigned size = __VERIFIER_nondet_uint(); [L5912] CALL assume_abort_if_not((size & 0x7) == 0) VAL [\old(cond)=1] [L211] COND FALSE !(!cond) [L5912] RET assume_abort_if_not((size & 0x7) == 0) VAL [c=0, d1={5:0}, d2={4:0}, size=1] [L5913] CALL assume_abort_if_not(size < 160) VAL [\old(cond)=1] [L211] COND FALSE !(!cond) [L5913] RET assume_abort_if_not(size < 160) VAL [c=0, d1={5:0}, d2={4:0}, size=1] [L5914] CALL memset_impl(d1, c, size) [L5870] CALL assume_abort_if_not((((n) == 0) || (s))) VAL [\old(cond)=1] [L211] COND FALSE !(!cond) [L5870] RET assume_abort_if_not((((n) == 0) || (s))) VAL [c=0, n=1, s={5:0}] [L5871] COND TRUE n > 0 [L5872] char *sp = (char *)s; [L5873] unsigned long i = 0; VAL [c=0, i=0, n=1, s={5:0}, sp={5:0}] [L5873] COND TRUE i < n [L5874] sp[i] = c [L5873] i++ VAL [c=0, i=1, n=1, s={5:0}, sp={5:0}] [L5873] COND FALSE !(i < n) VAL [c=0, i=1, n=1, s={5:0}, sp={5:0}] [L5876] return s; [L5914] RET memset_impl(d1, c, size) [L5915] CALL memset_override_0_impl(d2, c, size) [L5881] CALL assume_abort_if_not((((n) == 0) || (dst))) VAL [\old(cond)=1] [L211] COND FALSE !(!cond) [L5881] RET assume_abort_if_not((((n) == 0) || (dst))) VAL [c=0, dst={4:0}, n=1] [L5883] CALL __VERIFIER_assert(c == 0) VAL [\old(cond)=1] [L223] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L5883] RET __VERIFIER_assert(c == 0) VAL [c=0, dst={4:0}, n=1] [L5884] size_t num_uint64s = n >> 3; [L5885] size_t rem = n & 0x7; VAL [c=0, dst={4:0}, n=1, num_uint64s=0, rem=1] [L5886] CALL __VERIFIER_assert(rem == 0) VAL [\old(cond)=0] [L223] COND TRUE !cond VAL [\old(cond)=0, cond=0] [L223] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.4s, OverallIterations: 5, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 278 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 253 mSDsluCounter, 825 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 618 mSDsCounter, 106 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 690 IncrementalHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 106 mSolverCounterUnsat, 207 mSDtfsCounter, 690 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 180 GetRequests, 105 SyntacticMatches, 14 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=4, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 52 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 197 ConstructedInterpolants, 0 QuantifiedInterpolants, 751 SizeOfPredicates, 27 NumberOfNonLiveVariables, 304 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 141/165 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 1.8s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 20, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 9, TOOLS_POST_TIME: 0.4s, TOOLS_POST_CALL_APPLICATIONS: 16, TOOLS_POST_CALL_TIME: 0.7s, TOOLS_POST_RETURN_APPLICATIONS: 10, TOOLS_POST_RETURN_TIME: 0.3s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 35, TOOLS_QUANTIFIERELIM_TIME: 1.4s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.2s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 45, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 16, DOMAIN_JOIN_TIME: 0.3s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 20, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 10, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 215, DAG_COMPRESSION_RETAINED_NODES: 55, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 22:18:45,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/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_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/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 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c --- 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 [2022-11-25 22:18:48,464 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:18:48,466 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:18:48,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:18:48,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:18:48,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:18:48,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:18:48,492 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:18:48,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:18:48,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:18:48,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:18:48,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:18:48,498 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:18:48,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:18:48,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:18:48,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:18:48,503 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:18:48,504 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:18:48,506 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:18:48,508 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:18:48,509 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:18:48,511 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:18:48,512 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:18:48,513 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:18:48,517 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:18:48,518 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:18:48,518 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:18:48,519 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:18:48,520 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:18:48,521 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:18:48,521 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:18:48,522 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:18:48,523 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:18:48,524 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:18:48,539 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:18:48,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:18:48,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:18:48,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:18:48,542 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:18:48,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:18:48,544 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:18:48,545 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-25 22:18:48,571 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:18:48,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:18:48,572 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:18:48,572 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:18:48,573 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:18:48,573 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:18:48,574 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:18:48,574 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:18:48,574 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:18:48,574 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:18:48,575 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:18:48,575 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:18:48,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:18:48,576 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:18:48,576 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:18:48,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:18:48,577 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:18:48,577 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 22:18:48,577 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 22:18:48,577 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 22:18:48,578 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:18:48,578 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:18:48,578 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:18:48,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:18:48,579 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 22:18:48,579 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:18:48,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:18:48,579 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:18:48,580 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:18:48,580 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:18:48,580 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 22:18:48,580 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 22:18:48,580 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:18:48,581 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:18:48,581 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 22:18:48,581 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_12949e33-3c0c-4edc-b03f-f314ec88589a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c [2022-11-25 22:18:48,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:18:48,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:18:48,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:18:48,973 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:18:48,973 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:18:48,975 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2022-11-25 22:18:51,978 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:18:52,428 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:18:52,429 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2022-11-25 22:18:52,479 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/data/4b4e9cba2/b304bbd71b0644ecb67f98e3d1fcc31b/FLAG688c524ad [2022-11-25 22:18:52,495 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/data/4b4e9cba2/b304bbd71b0644ecb67f98e3d1fcc31b [2022-11-25 22:18:52,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:18:52,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:18:52,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:18:52,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:18:52,505 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:18:52,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:18:52" (1/1) ... [2022-11-25 22:18:52,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57442f48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:52, skipping insertion in model container [2022-11-25 22:18:52,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:18:52" (1/1) ... [2022-11-25 22:18:52,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:18:52,604 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:18:52,845 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_12949e33-3c0c-4edc-b03f-f314ec88589a/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2022-11-25 22:18:52,852 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_12949e33-3c0c-4edc-b03f-f314ec88589a/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2022-11-25 22:18:53,720 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:53,721 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:53,721 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:53,722 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:53,723 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:53,751 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:53,752 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:53,753 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:53,754 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:53,761 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:53,763 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:53,765 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:53,766 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:53,834 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:18:53,834 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:18:53,835 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:18:53,843 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 22:18:53,848 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 22:18:53,849 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 22:18:53,992 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 22:18:53,994 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 22:18:53,995 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 22:18:53,996 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 22:18:53,998 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 22:18:53,999 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 22:18:54,000 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 22:18:54,000 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 22:18:54,001 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 22:18:54,002 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 22:18:54,003 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 22:18:54,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:18:54,097 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-25 22:18:54,127 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:18:54,131 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_12949e33-3c0c-4edc-b03f-f314ec88589a/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2022-11-25 22:18:54,132 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_12949e33-3c0c-4edc-b03f-f314ec88589a/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2022-11-25 22:18:54,173 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:54,174 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:54,174 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:54,175 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:54,176 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:54,185 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:54,186 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:54,187 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:54,188 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:54,189 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:54,190 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:54,191 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:54,191 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:54,200 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:18:54,200 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:18:54,201 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:18:54,205 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 22:18:54,207 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 22:18:54,207 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 22:18:54,213 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 22:18:54,214 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 22:18:54,215 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 22:18:54,216 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 22:18:54,217 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 22:18:54,218 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 22:18:54,219 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 22:18:54,219 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 22:18:54,220 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 22:18:54,221 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 22:18:54,221 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 22:18:54,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:18:54,267 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:18:54,281 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2022-11-25 22:18:54,281 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2022-11-25 22:18:54,352 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:54,358 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:54,360 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:54,362 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:54,363 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:54,370 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:54,375 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:54,376 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:54,377 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:54,379 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:54,379 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:54,380 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:54,381 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:18:54,397 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:18:54,397 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:18:54,398 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:18:54,405 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 22:18:54,407 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 22:18:54,408 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 22:18:54,420 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 22:18:54,421 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 22:18:54,422 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 22:18:54,423 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 22:18:54,425 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 22:18:54,426 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 22:18:54,427 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 22:18:54,428 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 22:18:54,428 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 22:18:54,429 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 22:18:54,430 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 22:18:54,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:18:54,749 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:18:54,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:54 WrapperNode [2022-11-25 22:18:54,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:18:54,751 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:18:54,751 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:18:54,751 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:18:54,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:54" (1/1) ... [2022-11-25 22:18:54,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:54" (1/1) ... [2022-11-25 22:18:54,848 INFO L138 Inliner]: procedures = 611, calls = 608, calls flagged for inlining = 38, calls inlined = 6, statements flattened = 84 [2022-11-25 22:18:54,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:18:54,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:18:54,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:18:54,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:18:54,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:54" (1/1) ... [2022-11-25 22:18:54,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:54" (1/1) ... [2022-11-25 22:18:54,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:54" (1/1) ... [2022-11-25 22:18:54,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:54" (1/1) ... [2022-11-25 22:18:54,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:54" (1/1) ... [2022-11-25 22:18:54,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:54" (1/1) ... [2022-11-25 22:18:54,884 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:54" (1/1) ... [2022-11-25 22:18:54,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:54" (1/1) ... [2022-11-25 22:18:54,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:18:54,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:18:54,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:18:54,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:18:54,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:54" (1/1) ... [2022-11-25 22:18:54,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:18:54,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:18:54,937 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:18:54,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:18:55,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:18:55,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 22:18:55,004 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 22:18:55,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 22:18:55,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:18:55,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:18:55,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:18:55,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-25 22:18:55,005 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 22:18:55,005 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 22:18:55,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:18:55,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-25 22:18:55,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-25 22:18:55,006 INFO L130 BoogieDeclarations]: Found specification of procedure assert_all_bytes_are [2022-11-25 22:18:55,006 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_all_bytes_are [2022-11-25 22:18:55,007 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-25 22:18:55,007 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-25 22:18:55,350 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:18:55,352 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:18:55,637 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:18:55,644 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:18:55,644 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 22:18:55,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:18:55 BoogieIcfgContainer [2022-11-25 22:18:55,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:18:55,649 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:18:55,649 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:18:55,652 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:18:55,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:18:52" (1/3) ... [2022-11-25 22:18:55,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1031e0c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:18:55, skipping insertion in model container [2022-11-25 22:18:55,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:18:54" (2/3) ... [2022-11-25 22:18:55,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1031e0c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:18:55, skipping insertion in model container [2022-11-25 22:18:55,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:18:55" (3/3) ... [2022-11-25 22:18:55,656 INFO L112 eAbstractionObserver]: Analyzing ICFG memset_override_0_harness.i [2022-11-25 22:18:55,676 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:18:55,677 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 22:18:55,730 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:18:55,737 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;@6465d20, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:18:55,737 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 22:18:55,742 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 40 states have internal predecessors, (49), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-25 22:18:55,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-25 22:18:55,751 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:18:55,751 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:18:55,752 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:18:55,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:18:55,758 INFO L85 PathProgramCache]: Analyzing trace with hash 16590849, now seen corresponding path program 1 times [2022-11-25 22:18:55,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:18:55,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1782781139] [2022-11-25 22:18:55,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:55,788 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:18:55,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:18:55,799 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:18:55,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 22:18:56,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:18:56,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 22:18:56,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:18:56,054 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-25 22:18:56,055 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:18:56,057 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:18:56,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1782781139] [2022-11-25 22:18:56,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1782781139] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:18:56,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:18:56,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:18:56,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605000968] [2022-11-25 22:18:56,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:18:56,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 22:18:56,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:18:56,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 22:18:56,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:18:56,126 INFO L87 Difference]: Start difference. First operand has 60 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 40 states have internal predecessors, (49), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-25 22:18:56,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:18:56,180 INFO L93 Difference]: Finished difference Result 117 states and 167 transitions. [2022-11-25 22:18:56,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 22:18:56,183 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 36 [2022-11-25 22:18:56,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:18:56,193 INFO L225 Difference]: With dead ends: 117 [2022-11-25 22:18:56,193 INFO L226 Difference]: Without dead ends: 52 [2022-11-25 22:18:56,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:18:56,205 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:18:56,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:18:56,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-25 22:18:56,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-25 22:18:56,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 34 states have internal predecessors, (38), 15 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 22:18:56,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 66 transitions. [2022-11-25 22:18:56,290 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 66 transitions. Word has length 36 [2022-11-25 22:18:56,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:18:56,291 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 66 transitions. [2022-11-25 22:18:56,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-25 22:18:56,291 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 66 transitions. [2022-11-25 22:18:56,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-25 22:18:56,293 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:18:56,294 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:18:56,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:18:56,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:18:56,495 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:18:56,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:18:56,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1271235587, now seen corresponding path program 1 times [2022-11-25 22:18:56,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:18:56,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [198499296] [2022-11-25 22:18:56,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:56,497 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:18:56,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:18:56,536 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:18:56,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-25 22:18:56,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:18:56,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 22:18:56,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:18:56,877 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-25 22:18:56,878 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:18:57,037 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-25 22:18:57,037 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:18:57,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [198499296] [2022-11-25 22:18:57,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [198499296] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:18:57,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1577750619] [2022-11-25 22:18:57,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:57,038 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:18:57,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:18:57,047 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:18:57,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-25 22:18:57,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:18:57,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 22:18:57,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:18:57,473 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-25 22:18:57,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:18:57,565 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-25 22:18:57,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1577750619] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:18:57,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884077303] [2022-11-25 22:18:57,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:57,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:18:57,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:18:57,570 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:18:57,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 22:18:57,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:18:57,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 22:18:57,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:18:57,797 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-25 22:18:57,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:18:57,994 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-25 22:18:57,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884077303] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:18:57,995 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-25 22:18:57,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 9] total 12 [2022-11-25 22:18:57,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900812965] [2022-11-25 22:18:57,997 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-25 22:18:57,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 22:18:58,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:18:58,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 22:18:58,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-11-25 22:18:58,005 INFO L87 Difference]: Start difference. First operand 52 states and 66 transitions. Second operand has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 9 states have internal predecessors, (21), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-25 22:18:58,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:18:58,263 INFO L93 Difference]: Finished difference Result 58 states and 71 transitions. [2022-11-25 22:18:58,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 22:18:58,264 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 9 states have internal predecessors, (21), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 36 [2022-11-25 22:18:58,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:18:58,266 INFO L225 Difference]: With dead ends: 58 [2022-11-25 22:18:58,266 INFO L226 Difference]: Without dead ends: 56 [2022-11-25 22:18:58,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-11-25 22:18:58,267 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 62 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:18:58,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 251 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:18:58,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-25 22:18:58,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-11-25 22:18:58,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 37 states have internal predecessors, (41), 15 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 22:18:58,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 69 transitions. [2022-11-25 22:18:58,291 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 69 transitions. Word has length 36 [2022-11-25 22:18:58,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:18:58,296 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 69 transitions. [2022-11-25 22:18:58,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 9 states have internal predecessors, (21), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-25 22:18:58,297 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 69 transitions. [2022-11-25 22:18:58,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-25 22:18:58,299 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:18:58,299 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2022-11-25 22:18:58,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 22:18:58,509 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2022-11-25 22:18:58,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-11-25 22:18:58,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:18:58,907 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:18:58,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:18:58,908 INFO L85 PathProgramCache]: Analyzing trace with hash 2010040638, now seen corresponding path program 1 times [2022-11-25 22:18:58,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:18:58,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1926860925] [2022-11-25 22:18:58,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:58,909 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:18:58,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:18:58,910 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:18:58,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-25 22:18:59,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:18:59,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 22:18:59,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:18:59,399 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-25 22:18:59,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:18:59,726 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-25 22:18:59,726 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:18:59,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1926860925] [2022-11-25 22:18:59,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1926860925] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:18:59,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1305723605] [2022-11-25 22:18:59,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:59,727 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:18:59,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:18:59,728 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:18:59,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-25 22:18:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:18:59,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 22:18:59,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:19:00,301 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-25 22:19:00,302 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:19:00,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1305723605] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:19:00,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:19:00,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9, 9] total 17 [2022-11-25 22:19:00,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911702400] [2022-11-25 22:19:00,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:19:00,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 22:19:00,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:19:00,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 22:19:00,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-11-25 22:19:00,304 INFO L87 Difference]: Start difference. First operand 56 states and 69 transitions. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-25 22:19:00,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:19:00,840 INFO L93 Difference]: Finished difference Result 83 states and 104 transitions. [2022-11-25 22:19:00,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 22:19:00,841 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 42 [2022-11-25 22:19:00,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:19:00,842 INFO L225 Difference]: With dead ends: 83 [2022-11-25 22:19:00,842 INFO L226 Difference]: Without dead ends: 81 [2022-11-25 22:19:00,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 106 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2022-11-25 22:19:00,844 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 69 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:19:00,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 420 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 22:19:00,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-25 22:19:00,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 66. [2022-11-25 22:19:00,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 42 states have (on average 1.119047619047619) internal successors, (47), 44 states have internal predecessors, (47), 18 states have call successors, (18), 6 states have call predecessors, (18), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-25 22:19:00,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 81 transitions. [2022-11-25 22:19:00,865 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 81 transitions. Word has length 42 [2022-11-25 22:19:00,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:19:00,867 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 81 transitions. [2022-11-25 22:19:00,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-25 22:19:00,867 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 81 transitions. [2022-11-25 22:19:00,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-25 22:19:00,871 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:19:00,871 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2022-11-25 22:19:00,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2022-11-25 22:19:01,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-25 22:19:01,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:19:01,275 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:19:01,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:19:01,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1722148702, now seen corresponding path program 1 times [2022-11-25 22:19:01,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:19:01,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1095066534] [2022-11-25 22:19:01,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:19:01,276 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:19:01,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:19:01,277 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:19:01,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-25 22:19:01,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:19:01,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 22:19:01,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:19:01,702 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-25 22:19:01,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:19:02,017 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-25 22:19:02,017 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:19:02,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1095066534] [2022-11-25 22:19:02,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1095066534] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:19:02,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1500066734] [2022-11-25 22:19:02,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:19:02,018 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:19:02,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:19:02,019 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:19:02,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2022-11-25 22:19:02,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:19:02,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:19:02,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:19:02,260 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-25 22:19:02,260 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:19:02,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1500066734] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:19:02,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:19:02,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9, 9] total 15 [2022-11-25 22:19:02,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714988353] [2022-11-25 22:19:02,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:19:02,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:19:02,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:19:02,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:19:02,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-11-25 22:19:02,263 INFO L87 Difference]: Start difference. First operand 66 states and 81 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-25 22:19:02,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:19:02,314 INFO L93 Difference]: Finished difference Result 113 states and 136 transitions. [2022-11-25 22:19:02,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:19:02,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2022-11-25 22:19:02,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:19:02,326 INFO L225 Difference]: With dead ends: 113 [2022-11-25 22:19:02,328 INFO L226 Difference]: Without dead ends: 68 [2022-11-25 22:19:02,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 112 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-11-25 22:19:02,330 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 1 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:19:02,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 123 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:19:02,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-25 22:19:02,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 67. [2022-11-25 22:19:02,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 43 states have (on average 1.1162790697674418) internal successors, (48), 45 states have internal predecessors, (48), 18 states have call successors, (18), 6 states have call predecessors, (18), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-25 22:19:02,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 82 transitions. [2022-11-25 22:19:02,354 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 82 transitions. Word has length 43 [2022-11-25 22:19:02,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:19:02,355 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 82 transitions. [2022-11-25 22:19:02,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-25 22:19:02,355 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 82 transitions. [2022-11-25 22:19:02,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-25 22:19:02,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:19:02,357 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2022-11-25 22:19:02,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-11-25 22:19:02,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2022-11-25 22:19:02,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt [2022-11-25 22:19:02,776 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:19:02,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:19:02,777 INFO L85 PathProgramCache]: Analyzing trace with hash 982661572, now seen corresponding path program 1 times [2022-11-25 22:19:02,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:19:02,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1539961803] [2022-11-25 22:19:02,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:19:02,778 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:19:02,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:19:02,779 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:19:02,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-25 22:19:02,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:19:02,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 22:19:02,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:19:03,176 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-25 22:19:03,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:19:03,431 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-25 22:19:03,431 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:19:03,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1539961803] [2022-11-25 22:19:03,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1539961803] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:19:03,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1368684738] [2022-11-25 22:19:03,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:19:03,431 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:19:03,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:19:03,436 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:19:03,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2022-11-25 22:19:03,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:19:03,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 22:19:03,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:19:04,110 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-25 22:19:04,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:19:04,471 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-25 22:19:04,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1368684738] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:19:04,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1938623211] [2022-11-25 22:19:04,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:19:04,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:19:04,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:19:04,476 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:19:04,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-25 22:19:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:19:04,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 22:19:04,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:19:04,882 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-25 22:19:04,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:19:05,309 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-25 22:19:05,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1938623211] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:19:05,310 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-25 22:19:05,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8, 8, 9, 9] total 23 [2022-11-25 22:19:05,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410581363] [2022-11-25 22:19:05,311 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-25 22:19:05,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-25 22:19:05,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:19:05,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-25 22:19:05,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=439, Unknown=0, NotChecked=0, Total=506 [2022-11-25 22:19:05,313 INFO L87 Difference]: Start difference. First operand 67 states and 82 transitions. Second operand has 23 states, 21 states have (on average 2.5238095238095237) internal successors, (53), 20 states have internal predecessors, (53), 10 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2022-11-25 22:19:07,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:19:07,387 INFO L93 Difference]: Finished difference Result 122 states and 147 transitions. [2022-11-25 22:19:07,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 22:19:07,388 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 2.5238095238095237) internal successors, (53), 20 states have internal predecessors, (53), 10 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) Word has length 45 [2022-11-25 22:19:07,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:19:07,389 INFO L225 Difference]: With dead ends: 122 [2022-11-25 22:19:07,389 INFO L226 Difference]: Without dead ends: 77 [2022-11-25 22:19:07,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 240 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=166, Invalid=890, Unknown=0, NotChecked=0, Total=1056 [2022-11-25 22:19:07,393 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 141 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:19:07,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 534 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-25 22:19:07,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-25 22:19:07,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 67. [2022-11-25 22:19:07,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 46 states have (on average 1.108695652173913) internal successors, (51), 47 states have internal predecessors, (51), 15 states have call successors, (15), 6 states have call predecessors, (15), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 22:19:07,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 79 transitions. [2022-11-25 22:19:07,411 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 79 transitions. Word has length 45 [2022-11-25 22:19:07,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:19:07,411 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 79 transitions. [2022-11-25 22:19:07,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 2.5238095238095237) internal successors, (53), 20 states have internal predecessors, (53), 10 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2022-11-25 22:19:07,412 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 79 transitions. [2022-11-25 22:19:07,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-25 22:19:07,413 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:19:07,413 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 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] [2022-11-25 22:19:07,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-25 22:19:07,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-25 22:19:07,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2022-11-25 22:19:08,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt [2022-11-25 22:19:08,028 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:19:08,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:19:08,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1110629482, now seen corresponding path program 1 times [2022-11-25 22:19:08,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:19:08,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [780448222] [2022-11-25 22:19:08,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:19:08,029 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:19:08,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:19:08,031 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:19:08,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-25 22:19:08,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:19:08,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 22:19:08,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:19:08,321 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-11-25 22:19:08,321 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:19:08,322 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:19:08,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [780448222] [2022-11-25 22:19:08,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [780448222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:19:08,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:19:08,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 22:19:08,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424449577] [2022-11-25 22:19:08,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:19:08,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:19:08,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:19:08,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:19:08,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:19:08,324 INFO L87 Difference]: Start difference. First operand 67 states and 79 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-25 22:19:08,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:19:08,491 INFO L93 Difference]: Finished difference Result 73 states and 84 transitions. [2022-11-25 22:19:08,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:19:08,492 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 51 [2022-11-25 22:19:08,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:19:08,493 INFO L225 Difference]: With dead ends: 73 [2022-11-25 22:19:08,493 INFO L226 Difference]: Without dead ends: 71 [2022-11-25 22:19:08,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-25 22:19:08,494 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 24 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:19:08,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 249 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:19:08,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-11-25 22:19:08,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2022-11-25 22:19:08,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 49 states have (on average 1.1020408163265305) internal successors, (54), 50 states have internal predecessors, (54), 15 states have call successors, (15), 7 states have call predecessors, (15), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 22:19:08,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 82 transitions. [2022-11-25 22:19:08,527 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 82 transitions. Word has length 51 [2022-11-25 22:19:08,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:19:08,528 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 82 transitions. [2022-11-25 22:19:08,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-25 22:19:08,528 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 82 transitions. [2022-11-25 22:19:08,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-25 22:19:08,536 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:19:08,536 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 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] [2022-11-25 22:19:08,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-25 22:19:08,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:19:08,751 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:19:08,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:19:08,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1132287315, now seen corresponding path program 1 times [2022-11-25 22:19:08,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:19:08,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1010180739] [2022-11-25 22:19:08,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:19:08,753 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:19:08,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:19:08,755 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:19:08,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-25 22:19:08,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:19:08,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 22:19:08,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:19:09,116 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 32 proven. 12 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-25 22:19:09,117 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:19:09,267 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-25 22:19:09,267 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:19:09,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1010180739] [2022-11-25 22:19:09,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1010180739] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-25 22:19:09,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:19:09,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2022-11-25 22:19:09,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476838084] [2022-11-25 22:19:09,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:19:09,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:19:09,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:19:09,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:19:09,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-25 22:19:09,269 INFO L87 Difference]: Start difference. First operand 71 states and 82 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 5 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-25 22:19:09,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:19:09,415 INFO L93 Difference]: Finished difference Result 114 states and 133 transitions. [2022-11-25 22:19:09,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:19:09,416 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), 5 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 68 [2022-11-25 22:19:09,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:19:09,417 INFO L225 Difference]: With dead ends: 114 [2022-11-25 22:19:09,417 INFO L226 Difference]: Without dead ends: 86 [2022-11-25 22:19:09,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-11-25 22:19:09,418 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 26 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:19:09,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 214 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:19:09,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-25 22:19:09,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84. [2022-11-25 22:19:09,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 58 states have (on average 1.103448275862069) internal successors, (64), 59 states have internal predecessors, (64), 19 states have call successors, (19), 7 states have call predecessors, (19), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-25 22:19:09,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 100 transitions. [2022-11-25 22:19:09,440 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 100 transitions. Word has length 68 [2022-11-25 22:19:09,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:19:09,440 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 100 transitions. [2022-11-25 22:19:09,441 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), 5 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-25 22:19:09,441 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 100 transitions. [2022-11-25 22:19:09,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-25 22:19:09,442 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:19:09,442 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 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, 1, 1] [2022-11-25 22:19:09,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-25 22:19:09,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:19:09,665 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:19:09,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:19:09,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1383518092, now seen corresponding path program 1 times [2022-11-25 22:19:09,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:19:09,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [877168941] [2022-11-25 22:19:09,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:19:09,666 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:19:09,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:19:09,667 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:19:09,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-25 22:19:09,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:19:09,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 22:19:09,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:19:10,136 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 32 proven. 12 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-25 22:19:10,136 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:19:10,338 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-25 22:19:10,338 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:19:10,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [877168941] [2022-11-25 22:19:10,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [877168941] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-25 22:19:10,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:19:10,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 13 [2022-11-25 22:19:10,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643835632] [2022-11-25 22:19:10,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:19:10,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:19:10,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:19:10,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:19:10,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-25 22:19:10,341 INFO L87 Difference]: Start difference. First operand 84 states and 100 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 4 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2022-11-25 22:19:10,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:19:10,499 INFO L93 Difference]: Finished difference Result 106 states and 121 transitions. [2022-11-25 22:19:10,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:19:10,500 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 4 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 72 [2022-11-25 22:19:10,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:19:10,501 INFO L225 Difference]: With dead ends: 106 [2022-11-25 22:19:10,501 INFO L226 Difference]: Without dead ends: 71 [2022-11-25 22:19:10,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-25 22:19:10,502 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 24 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:19:10,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 243 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:19:10,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-11-25 22:19:10,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2022-11-25 22:19:10,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 49 states have (on average 1.0816326530612246) internal successors, (53), 50 states have internal predecessors, (53), 15 states have call successors, (15), 7 states have call predecessors, (15), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 22:19:10,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 81 transitions. [2022-11-25 22:19:10,529 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 81 transitions. Word has length 72 [2022-11-25 22:19:10,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:19:10,529 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 81 transitions. [2022-11-25 22:19:10,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 4 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2022-11-25 22:19:10,530 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 81 transitions. [2022-11-25 22:19:10,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-25 22:19:10,531 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:19:10,531 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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] [2022-11-25 22:19:10,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-25 22:19:10,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:19:10,746 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:19:10,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:19:10,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1704630079, now seen corresponding path program 1 times [2022-11-25 22:19:10,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:19:10,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1990223372] [2022-11-25 22:19:10,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:19:10,747 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:19:10,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:19:10,748 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:19:10,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-25 22:19:10,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:19:10,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-25 22:19:10,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:19:11,556 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 38 proven. 22 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-25 22:19:11,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:19:12,401 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 9 proven. 28 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-11-25 22:19:12,401 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:19:12,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1990223372] [2022-11-25 22:19:12,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1990223372] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:19:12,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2108775941] [2022-11-25 22:19:12,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:19:12,402 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:19:12,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:19:12,403 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:19:12,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2022-11-25 22:19:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:19:12,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-25 22:19:12,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:19:13,588 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 35 proven. 22 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-25 22:19:13,590 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:19:15,007 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 9 proven. 28 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-11-25 22:19:15,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2108775941] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:19:15,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729056799] [2022-11-25 22:19:15,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:19:15,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:19:15,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:19:15,012 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:19:15,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-25 22:19:15,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:19:15,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-25 22:19:15,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:19:15,895 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 38 proven. 12 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-11-25 22:19:15,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:19:16,567 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-11-25 22:19:16,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729056799] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:19:16,567 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-25 22:19:16,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12, 12, 11, 10] total 44 [2022-11-25 22:19:16,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332316006] [2022-11-25 22:19:16,568 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-25 22:19:16,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-11-25 22:19:16,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:19:16,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-11-25 22:19:16,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=1614, Unknown=0, NotChecked=0, Total=1892 [2022-11-25 22:19:16,572 INFO L87 Difference]: Start difference. First operand 71 states and 81 transitions. Second operand has 44 states, 44 states have (on average 2.227272727272727) internal successors, (98), 39 states have internal predecessors, (98), 16 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (34), 17 states have call predecessors, (34), 16 states have call successors, (34) [2022-11-25 22:19:23,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:19:23,912 INFO L93 Difference]: Finished difference Result 138 states and 160 transitions. [2022-11-25 22:19:23,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 22:19:23,914 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 2.227272727272727) internal successors, (98), 39 states have internal predecessors, (98), 16 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (34), 17 states have call predecessors, (34), 16 states have call successors, (34) Word has length 77 [2022-11-25 22:19:23,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:19:23,915 INFO L225 Difference]: With dead ends: 138 [2022-11-25 22:19:23,915 INFO L226 Difference]: Without dead ends: 85 [2022-11-25 22:19:23,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 414 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 976 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=720, Invalid=3062, Unknown=0, NotChecked=0, Total=3782 [2022-11-25 22:19:23,917 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 252 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-25 22:19:23,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 768 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-25 22:19:23,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-11-25 22:19:23,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 84. [2022-11-25 22:19:23,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 62 states have (on average 1.0806451612903225) internal successors, (67), 63 states have internal predecessors, (67), 15 states have call successors, (15), 7 states have call predecessors, (15), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-25 22:19:23,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 95 transitions. [2022-11-25 22:19:23,942 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 95 transitions. Word has length 77 [2022-11-25 22:19:23,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:19:23,942 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 95 transitions. [2022-11-25 22:19:23,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 2.227272727272727) internal successors, (98), 39 states have internal predecessors, (98), 16 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (34), 17 states have call predecessors, (34), 16 states have call successors, (34) [2022-11-25 22:19:23,942 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 95 transitions. [2022-11-25 22:19:23,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-25 22:19:23,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:19:23,944 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 4, 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, 1] [2022-11-25 22:19:23,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-25 22:19:24,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-25 22:19:24,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2022-11-25 22:19:24,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt [2022-11-25 22:19:24,556 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:19:24,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:19:24,556 INFO L85 PathProgramCache]: Analyzing trace with hash 24387113, now seen corresponding path program 1 times [2022-11-25 22:19:24,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:19:24,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [382900281] [2022-11-25 22:19:24,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:19:24,557 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:19:24,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:19:24,558 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:19:24,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-25 22:19:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:19:25,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 91 conjunts are in the unsatisfiable core [2022-11-25 22:19:25,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:19:25,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 10 [2022-11-25 22:19:26,153 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 26 treesize of output 25 [2022-11-25 22:19:26,646 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 37 treesize of output 39 [2022-11-25 22:19:27,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:27,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:27,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:27,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:27,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:27,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 48 [2022-11-25 22:19:27,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:27,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:27,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:27,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:27,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:27,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:27,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:27,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:27,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 62 [2022-11-25 22:19:28,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:28,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:28,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:28,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:28,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:28,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:28,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:28,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:28,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:28,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 74 [2022-11-25 22:19:28,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:28,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:28,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:28,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:28,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:28,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:28,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:28,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:28,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:28,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:28,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:28,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:28,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:28,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:28,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 88 [2022-11-25 22:19:29,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:29,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:29,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:29,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:29,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:29,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:29,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:29,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:29,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:29,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:29,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:29,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:29,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:29,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:29,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:29,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:29,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:29,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:29,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:29,708 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 22:19:29,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 77 treesize of output 94 [2022-11-25 22:19:33,678 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:33,679 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:33,679 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:33,680 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:33,681 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:33,681 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:33,682 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:33,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,698 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:33,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,700 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:33,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,711 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:33,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,719 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:33,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,727 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:33,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,731 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:33,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:33,735 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:33,838 INFO L321 Elim1Store]: treesize reduction 150, result has 32.1 percent of original size [2022-11-25 22:19:33,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 45 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 125 treesize of output 173 [2022-11-25 22:19:38,432 INFO L321 Elim1Store]: treesize reduction 386, result has 1.8 percent of original size [2022-11-25 22:19:38,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 28 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 153 case distinctions, treesize of input 127 treesize of output 61 [2022-11-25 22:19:38,704 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 26 proven. 89 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-25 22:19:38,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:19:39,566 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:19:39,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [382900281] [2022-11-25 22:19:39,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [382900281] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:19:39,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1994283995] [2022-11-25 22:19:39,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:19:39,567 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:19:39,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:19:39,568 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:19:39,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2022-11-25 22:19:40,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:19:40,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 88 conjunts are in the unsatisfiable core [2022-11-25 22:19:40,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:19:41,073 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 10 treesize of output 8 [2022-11-25 22:19:42,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:42,567 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 22 treesize of output 21 [2022-11-25 22:19:43,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:43,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:43,239 INFO L321 Elim1Store]: treesize reduction 18, result has 28.0 percent of original size [2022-11-25 22:19:43,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 32 [2022-11-25 22:19:43,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:43,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:43,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:43,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:43,983 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:43,987 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:19:43,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 45 [2022-11-25 22:19:44,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:44,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:44,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:44,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:44,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:44,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:44,854 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:44,859 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:19:44,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 51 treesize of output 59 [2022-11-25 22:19:45,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:45,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:45,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:45,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:45,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:45,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:45,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:45,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:45,982 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:45,987 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:19:45,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 62 treesize of output 73 [2022-11-25 22:19:47,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:47,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:47,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:47,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:47,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:47,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:47,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:47,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:47,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:47,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:47,334 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:47,340 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:19:47,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 73 treesize of output 87 [2022-11-25 22:19:48,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:48,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:48,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:48,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:48,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:48,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:48,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:48,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:48,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:48,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:48,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:48,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:48,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:48,678 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:48,684 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:19:48,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 80 treesize of output 97 [2022-11-25 22:19:49,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:49,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:49,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:49,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:49,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:49,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:49,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:49,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:49,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:49,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:49,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:50,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:50,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:50,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:50,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:50,006 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:50,012 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:19:50,012 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 29 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 7 case distinctions, treesize of input 82 treesize of output 102 [2022-11-25 22:19:57,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:57,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:57,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:57,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:57,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:57,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:57,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:57,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:57,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:57,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:57,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:57,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:57,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:57,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:57,905 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:57,906 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:57,906 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:57,907 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:57,908 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:57,909 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:57,909 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:57,911 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:57,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:19:57,917 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:19:57,937 INFO L321 Elim1Store]: treesize reduction 26, result has 21.2 percent of original size [2022-11-25 22:19:57,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 57 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 9 case distinctions, treesize of input 132 treesize of output 183 [2022-11-25 22:20:07,667 INFO L321 Elim1Store]: treesize reduction 162, result has 4.1 percent of original size [2022-11-25 22:20:07,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 19 select indices, 19 select index equivalence classes, 29 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 34 case distinctions, treesize of input 134 treesize of output 64 [2022-11-25 22:20:07,683 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 41 proven. 83 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-25 22:20:07,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:20:07,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1994283995] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:20:07,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721255747] [2022-11-25 22:20:07,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:20:07,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:20:07,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:20:07,759 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:20:07,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-25 22:20:08,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:20:08,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 102 conjunts are in the unsatisfiable core [2022-11-25 22:20:08,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:20:08,050 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 10 treesize of output 8 [2022-11-25 22:20:10,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 10 [2022-11-25 22:20:11,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:11,100 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 23 treesize of output 22 [2022-11-25 22:20:12,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:12,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:12,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:12,203 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 33 treesize of output 35 [2022-11-25 22:20:13,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:13,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:13,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:13,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:13,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:13,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 48 [2022-11-25 22:20:14,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:14,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:14,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:14,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:14,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:14,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:14,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:14,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 61 [2022-11-25 22:20:16,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:16,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:16,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:16,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:16,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:16,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:16,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:16,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:16,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:16,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:16,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:16,513 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 75 [2022-11-25 22:20:18,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:18,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:18,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:18,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:18,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:18,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:18,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:18,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:18,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:18,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:18,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:18,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:18,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:18,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:18,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:18,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 89 [2022-11-25 22:20:20,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:20,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:20,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:20,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:20,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:20,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:20,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:20,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 29 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 92 [2022-11-25 22:20:28,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:28,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:28,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:28,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:28,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:28,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:28,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:20:28,217 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:20:28,218 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:20:28,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:20:28,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:20:28,220 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:20:28,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:20:28,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:20:28,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 57 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 198 [2022-11-25 22:20:44,692 INFO L321 Elim1Store]: treesize reduction 122, result has 5.4 percent of original size [2022-11-25 22:20:44,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 29 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 16 case distinctions, treesize of input 127 treesize of output 61 [2022-11-25 22:20:44,708 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 35 proven. 89 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-25 22:20:44,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:20:44,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721255747] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:20:44,790 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 22:20:44,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 37, 40] total 103 [2022-11-25 22:20:44,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319158191] [2022-11-25 22:20:44,794 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 22:20:44,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2022-11-25 22:20:44,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:20:44,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2022-11-25 22:20:44,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=568, Invalid=10988, Unknown=0, NotChecked=0, Total=11556 [2022-11-25 22:20:44,800 INFO L87 Difference]: Start difference. First operand 84 states and 95 transitions. Second operand has 103 states, 97 states have (on average 1.5360824742268042) internal successors, (149), 95 states have internal predecessors, (149), 19 states have call successors, (31), 7 states have call predecessors, (31), 11 states have return successors, (30), 20 states have call predecessors, (30), 18 states have call successors, (30) [2022-11-25 22:20:51,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:20:53,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:20:56,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:20:58,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:21:01,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:21:03,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:21:06,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:21:08,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:21:11,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:21:13,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:21:17,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:21:19,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:21:22,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:21:24,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:21:28,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:21:30,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:21:34,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:21:37,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:21:41,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:21:43,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:22:05,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:22:25,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:22:27,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:22:39,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:22:42,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:22:51,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:22:51,738 INFO L93 Difference]: Finished difference Result 208 states and 241 transitions. [2022-11-25 22:22:51,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-11-25 22:22:51,741 INFO L78 Accepts]: Start accepts. Automaton has has 103 states, 97 states have (on average 1.5360824742268042) internal successors, (149), 95 states have internal predecessors, (149), 19 states have call successors, (31), 7 states have call predecessors, (31), 11 states have return successors, (30), 20 states have call predecessors, (30), 18 states have call successors, (30) Word has length 87 [2022-11-25 22:22:51,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:22:51,746 INFO L225 Difference]: With dead ends: 208 [2022-11-25 22:22:51,747 INFO L226 Difference]: Without dead ends: 170 [2022-11-25 22:22:51,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 144 SyntacticMatches, 30 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9007 ImplicationChecksByTransitivity, 88.8s TimeCoverageRelationStatistics Valid=1876, Invalid=21686, Unknown=0, NotChecked=0, Total=23562 [2022-11-25 22:22:51,757 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 715 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 3996 mSolverCounterSat, 364 mSolverCounterUnsat, 25 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 94.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 4385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 3996 IncrementalHoareTripleChecker+Invalid, 25 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 97.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:22:51,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 1231 Invalid, 4385 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [364 Valid, 3996 Invalid, 25 Unknown, 0 Unchecked, 97.2s Time] [2022-11-25 22:22:51,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-11-25 22:22:51,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 149. [2022-11-25 22:22:51,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 106 states have (on average 1.0943396226415094) internal successors, (116), 109 states have internal predecessors, (116), 30 states have call successors, (30), 14 states have call predecessors, (30), 12 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2022-11-25 22:22:51,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 172 transitions. [2022-11-25 22:22:51,861 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 172 transitions. Word has length 87 [2022-11-25 22:22:51,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:22:51,863 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 172 transitions. [2022-11-25 22:22:51,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 97 states have (on average 1.5360824742268042) internal successors, (149), 95 states have internal predecessors, (149), 19 states have call successors, (31), 7 states have call predecessors, (31), 11 states have return successors, (30), 20 states have call predecessors, (30), 18 states have call successors, (30) [2022-11-25 22:22:51,864 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 172 transitions. [2022-11-25 22:22:51,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-25 22:22:51,866 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:22:51,867 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 4, 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, 1, 1, 1, 1, 1] [2022-11-25 22:22:51,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2022-11-25 22:22:52,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-25 22:22:52,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2022-11-25 22:22:52,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt [2022-11-25 22:22:52,485 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:22:52,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:22:52,486 INFO L85 PathProgramCache]: Analyzing trace with hash 865156450, now seen corresponding path program 1 times [2022-11-25 22:22:52,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:22:52,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1153018812] [2022-11-25 22:22:52,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:22:52,487 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:22:52,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:22:52,488 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:22:52,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-25 22:22:52,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:22:52,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 22:22:52,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:22:53,192 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-11-25 22:22:53,192 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:22:53,192 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:22:53,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1153018812] [2022-11-25 22:22:53,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1153018812] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:22:53,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:22:53,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 22:22:53,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748111080] [2022-11-25 22:22:53,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:22:53,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:22:53,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:22:53,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:22:53,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:22:53,194 INFO L87 Difference]: Start difference. First operand 149 states and 172 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 5 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-25 22:22:53,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:22:53,578 INFO L93 Difference]: Finished difference Result 191 states and 213 transitions. [2022-11-25 22:22:53,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:22:53,579 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 5 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 91 [2022-11-25 22:22:53,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:22:53,580 INFO L225 Difference]: With dead ends: 191 [2022-11-25 22:22:53,580 INFO L226 Difference]: Without dead ends: 149 [2022-11-25 22:22:53,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-25 22:22:53,581 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 29 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:22:53,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 181 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:22:53,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-11-25 22:22:53,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2022-11-25 22:22:53,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 106 states have (on average 1.0660377358490567) internal successors, (113), 109 states have internal predecessors, (113), 30 states have call successors, (30), 14 states have call predecessors, (30), 12 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2022-11-25 22:22:53,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 169 transitions. [2022-11-25 22:22:53,646 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 169 transitions. Word has length 91 [2022-11-25 22:22:53,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:22:53,647 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 169 transitions. [2022-11-25 22:22:53,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 5 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-25 22:22:53,648 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 169 transitions. [2022-11-25 22:22:53,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-25 22:22:53,649 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:22:53,649 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 6, 6, 4, 3, 3, 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] [2022-11-25 22:22:53,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-11-25 22:22:53,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:22:53,850 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:22:53,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:22:53,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1569275855, now seen corresponding path program 2 times [2022-11-25 22:22:53,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:22:53,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [577840889] [2022-11-25 22:22:53,851 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 22:22:53,851 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:22:53,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:22:53,852 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:22:53,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-25 22:22:54,136 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 22:22:54,136 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:22:54,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-25 22:22:54,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:22:55,487 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 38 proven. 106 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-25 22:22:55,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:22:57,632 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 9 proven. 112 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-11-25 22:22:57,632 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:22:57,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [577840889] [2022-11-25 22:22:57,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [577840889] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:22:57,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [233455589] [2022-11-25 22:22:57,633 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 22:22:57,633 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:22:57,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:22:57,640 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:22:57,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2022-11-25 22:22:58,216 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 22:22:58,216 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:22:58,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-25 22:22:58,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:23:00,456 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 35 proven. 101 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-25 22:23:00,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:23:05,237 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 9 proven. 101 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-25 22:23:05,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [233455589] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:23:05,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988644907] [2022-11-25 22:23:05,237 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 22:23:05,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:23:05,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:23:05,238 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:23:05,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-11-25 22:23:05,519 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 22:23:05,519 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:23:05,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-25 22:23:05,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:23:07,880 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 38 proven. 106 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-25 22:23:07,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:23:20,157 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 6 proven. 104 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-25 22:23:20,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [988644907] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:23:20,157 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-25 22:23:20,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18, 19, 19, 19, 22] total 101 [2022-11-25 22:23:20,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196215177] [2022-11-25 22:23:20,158 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-25 22:23:20,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2022-11-25 22:23:20,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:23:20,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2022-11-25 22:23:20,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1381, Invalid=8719, Unknown=0, NotChecked=0, Total=10100 [2022-11-25 22:23:20,163 INFO L87 Difference]: Start difference. First operand 149 states and 169 transitions. Second operand has 101 states, 100 states have (on average 1.99) internal successors, (199), 98 states have internal predecessors, (199), 16 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (34), 17 states have call predecessors, (34), 16 states have call successors, (34) [2022-11-25 22:23:52,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:23:52,580 INFO L93 Difference]: Finished difference Result 290 states and 338 transitions. [2022-11-25 22:23:52,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-11-25 22:23:52,584 INFO L78 Accepts]: Start accepts. Automaton has has 101 states, 100 states have (on average 1.99) internal successors, (199), 98 states have internal predecessors, (199), 16 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (34), 17 states have call predecessors, (34), 16 states have call successors, (34) Word has length 93 [2022-11-25 22:23:52,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:23:52,588 INFO L225 Difference]: With dead ends: 290 [2022-11-25 22:23:52,588 INFO L226 Difference]: Without dead ends: 185 [2022-11-25 22:23:52,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 453 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 4977 ImplicationChecksByTransitivity, 44.9s TimeCoverageRelationStatistics Valid=2710, Invalid=14846, Unknown=0, NotChecked=0, Total=17556 [2022-11-25 22:23:52,593 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 782 mSDsluCounter, 1625 mSDsCounter, 0 mSdLazyCounter, 2028 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 1675 SdHoareTripleChecker+Invalid, 2395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 2028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:23:52,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [782 Valid, 1675 Invalid, 2395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [367 Valid, 2028 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2022-11-25 22:23:52,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-11-25 22:23:52,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 173. [2022-11-25 22:23:52,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 130 states have (on average 1.0615384615384615) internal successors, (138), 133 states have internal predecessors, (138), 30 states have call successors, (30), 14 states have call predecessors, (30), 12 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2022-11-25 22:23:52,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 194 transitions. [2022-11-25 22:23:52,671 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 194 transitions. Word has length 93 [2022-11-25 22:23:52,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:23:52,671 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 194 transitions. [2022-11-25 22:23:52,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 100 states have (on average 1.99) internal successors, (199), 98 states have internal predecessors, (199), 16 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (34), 17 states have call predecessors, (34), 16 states have call successors, (34) [2022-11-25 22:23:52,672 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 194 transitions. [2022-11-25 22:23:52,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-25 22:23:52,673 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:23:52,674 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 5, 4, 4, 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] [2022-11-25 22:23:52,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2022-11-25 22:23:52,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-11-25 22:23:53,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-11-25 22:23:53,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:23:53,280 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:23:53,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:23:53,281 INFO L85 PathProgramCache]: Analyzing trace with hash 609255285, now seen corresponding path program 1 times [2022-11-25 22:23:53,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:23:53,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1039305437] [2022-11-25 22:23:53,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:23:53,281 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:23:53,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:23:53,283 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:23:53,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-25 22:23:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:23:53,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 57 conjunts are in the unsatisfiable core [2022-11-25 22:23:53,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:23:55,554 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:23:55,555 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:23:55,556 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:23:55,557 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:23:55,557 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:23:55,558 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:23:55,558 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:23:55,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:23:55,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:23:55,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:23:55,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:23:55,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:23:55,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:23:55,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:23:55,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 79 [2022-11-25 22:24:01,821 INFO L321 Elim1Store]: treesize reduction 62, result has 4.6 percent of original size [2022-11-25 22:24:01,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 64 treesize of output 31 [2022-11-25 22:24:01,996 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 54 proven. 96 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-25 22:24:01,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:24:02,559 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:24:02,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1039305437] [2022-11-25 22:24:02,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1039305437] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:24:02,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [514135701] [2022-11-25 22:24:02,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:24:02,559 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:24:02,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:24:02,561 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:24:02,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2022-11-25 22:24:03,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:24:03,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-25 22:24:03,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:24:05,989 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:24:05,989 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:24:05,990 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:24:05,991 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:24:05,991 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:24:05,992 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:24:05,992 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:24:05,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:24:05,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:24:06,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:24:06,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:24:06,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:24:06,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:24:06,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:24:06,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 79 [2022-11-25 22:24:10,675 INFO L321 Elim1Store]: treesize reduction 62, result has 4.6 percent of original size [2022-11-25 22:24:10,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 64 treesize of output 31 [2022-11-25 22:24:10,688 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 60 proven. 84 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-25 22:24:10,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:24:10,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [514135701] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:24:10,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491831112] [2022-11-25 22:24:10,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:24:10,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:24:10,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:24:10,755 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:24:10,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-11-25 22:24:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:24:11,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-25 22:24:11,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:24:12,719 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:24:12,720 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:24:12,721 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:24:12,721 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:24:12,721 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:24:12,722 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:24:12,722 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:24:12,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 104 [2022-11-25 22:24:18,694 INFO L321 Elim1Store]: treesize reduction 62, result has 4.6 percent of original size [2022-11-25 22:24:18,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 64 treesize of output 31 [2022-11-25 22:24:18,711 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 54 proven. 54 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-11-25 22:24:18,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:24:18,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491831112] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:24:18,780 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 22:24:18,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 30, 27] total 52 [2022-11-25 22:24:18,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8886630] [2022-11-25 22:24:18,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 22:24:18,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-11-25 22:24:18,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:24:18,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-11-25 22:24:18,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=293, Invalid=2899, Unknown=0, NotChecked=0, Total=3192 [2022-11-25 22:24:18,783 INFO L87 Difference]: Start difference. First operand 173 states and 194 transitions. Second operand has 52 states, 48 states have (on average 2.0416666666666665) internal successors, (98), 47 states have internal predecessors, (98), 13 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (20), 12 states have call predecessors, (20), 12 states have call successors, (20) [2022-11-25 22:24:22,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:24:24,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:24:27,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:24:29,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:24:32,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:24:34,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:24:36,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:24:39,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:24:42,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:25:05,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:25:08,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 22:25:10,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:25:10,465 INFO L93 Difference]: Finished difference Result 203 states and 228 transitions. [2022-11-25 22:25:10,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-25 22:25:10,465 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 48 states have (on average 2.0416666666666665) internal successors, (98), 47 states have internal predecessors, (98), 13 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (20), 12 states have call predecessors, (20), 12 states have call successors, (20) Word has length 108 [2022-11-25 22:25:10,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:25:10,466 INFO L225 Difference]: With dead ends: 203 [2022-11-25 22:25:10,467 INFO L226 Difference]: Without dead ends: 152 [2022-11-25 22:25:10,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 249 SyntacticMatches, 36 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3261 ImplicationChecksByTransitivity, 21.5s TimeCoverageRelationStatistics Valid=856, Invalid=7154, Unknown=0, NotChecked=0, Total=8010 [2022-11-25 22:25:10,468 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 445 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 2114 mSolverCounterSat, 244 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 2369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 2114 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:25:10,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 623 Invalid, 2369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 2114 Invalid, 11 Unknown, 0 Unchecked, 43.7s Time] [2022-11-25 22:25:10,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2022-11-25 22:25:10,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 150. [2022-11-25 22:25:10,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 115 states have (on average 1.0521739130434782) internal successors, (121), 117 states have internal predecessors, (121), 23 states have call successors, (23), 13 states have call predecessors, (23), 11 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-25 22:25:10,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 163 transitions. [2022-11-25 22:25:10,547 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 163 transitions. Word has length 108 [2022-11-25 22:25:10,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:25:10,547 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 163 transitions. [2022-11-25 22:25:10,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 48 states have (on average 2.0416666666666665) internal successors, (98), 47 states have internal predecessors, (98), 13 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (20), 12 states have call predecessors, (20), 12 states have call successors, (20) [2022-11-25 22:25:10,547 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 163 transitions. [2022-11-25 22:25:10,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-25 22:25:10,548 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:25:10,548 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 6, 6, 6, 4, 3, 3, 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] [2022-11-25 22:25:10,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-11-25 22:25:10,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2022-11-25 22:25:10,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-11-25 22:25:11,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:25:11,152 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:25:11,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:25:11,152 INFO L85 PathProgramCache]: Analyzing trace with hash -55356389, now seen corresponding path program 3 times [2022-11-25 22:25:11,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:25:11,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1598821314] [2022-11-25 22:25:11,153 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 22:25:11,153 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:25:11,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:25:11,154 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:25:11,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-25 22:25:14,703 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2022-11-25 22:25:14,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:25:14,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 148 conjunts are in the unsatisfiable core [2022-11-25 22:25:14,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:25:15,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 14 treesize of output 10 [2022-11-25 22:25:15,391 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 26 treesize of output 25 [2022-11-25 22:25:15,810 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 37 treesize of output 39 [2022-11-25 22:25:16,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:16,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:16,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:16,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:16,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:16,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 48 [2022-11-25 22:25:16,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:16,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:16,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:16,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:16,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:16,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:16,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:16,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 61 [2022-11-25 22:25:17,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 74 [2022-11-25 22:25:17,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:17,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 87 [2022-11-25 22:25:18,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:18,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:18,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:18,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:18,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:18,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:18,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:18,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:18,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:18,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:18,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:18,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:18,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:18,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 100 [2022-11-25 22:25:19,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:19,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:19,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:19,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:19,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:19,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:19,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:19,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:19,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:19,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:19,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:19,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:19,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:19,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:19,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:19,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:19,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:19,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:19,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:19,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:19,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 114 [2022-11-25 22:25:20,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 126 [2022-11-25 22:25:20,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:20,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:21,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:21,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:21,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:21,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:21,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:21,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:21,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:21,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:21,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:21,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:21,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:21,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:21,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:21,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:21,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:21,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:21,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:21,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 139 [2022-11-25 22:25:21,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:21,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:21,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:21,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:21,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:21,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:21,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:21,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:21,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:21,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:21,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:21,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:21,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:22,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:22,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:22,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:22,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:22,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:22,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:22,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:22,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:22,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 152 [2022-11-25 22:25:23,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:23,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 166 [2022-11-25 22:25:24,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:24,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 91 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 178 [2022-11-25 22:25:25,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:25,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 105 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 154 treesize of output 192 [2022-11-25 22:25:26,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:26,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:26,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:26,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:26,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:26,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:26,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:26,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:26,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:26,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:26,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:26,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:26,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:26,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:26,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:26,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:26,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:26,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:26,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:26,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:26,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:27,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:27,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:27,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:27,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:27,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:27,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:27,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:27,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:27,021 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 22:25:27,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 120 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 105 case distinctions, treesize of input 147 treesize of output 188 [2022-11-25 22:25:36,717 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:36,717 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:36,718 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:36,718 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:36,719 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:36,720 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:36,720 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:36,721 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:36,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,784 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:36,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,823 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:36,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,838 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:36,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,869 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:36,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,879 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:36,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,884 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:36,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:36,905 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:37,022 INFO L321 Elim1Store]: treesize reduction 150, result has 32.1 percent of original size [2022-11-25 22:25:37,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 148 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 128 case distinctions, treesize of input 222 treesize of output 294 [2022-11-25 22:25:40,045 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:40,045 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:40,046 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:40,046 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:40,047 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:40,047 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:40,048 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:40,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,101 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:40,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,111 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:40,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,114 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:40,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,165 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:40,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,179 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:40,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,185 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:40,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,196 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:40,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,245 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:40,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,305 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:40,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,313 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:40,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,316 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:40,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,319 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:40,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,325 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:40,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,327 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:40,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:25:40,330 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:25:40,458 INFO L321 Elim1Store]: treesize reduction 216, result has 25.3 percent of original size [2022-11-25 22:25:40,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 24 select indices, 24 select index equivalence classes, 127 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 284 case distinctions, treesize of input 300 treesize of output 396 [2022-11-25 22:25:52,725 INFO L321 Elim1Store]: treesize reduction 770, result has 0.9 percent of original size [2022-11-25 22:25:52,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 34 select indices, 34 select index equivalence classes, 120 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 561 case distinctions, treesize of input 239 treesize of output 109 [2022-11-25 22:25:53,384 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 35 proven. 284 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-25 22:25:53,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:25:55,158 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:25:55,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1598821314] [2022-11-25 22:25:55,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1598821314] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:25:55,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [220967887] [2022-11-25 22:25:55,158 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 22:25:55,159 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:25:55,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:25:55,160 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:25:55,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2022-11-25 22:26:03,050 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2022-11-25 22:26:03,050 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:26:03,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 141 conjunts are in the unsatisfiable core [2022-11-25 22:26:03,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:26:03,356 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 10 treesize of output 8 [2022-11-25 22:26:05,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:05,894 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 22 treesize of output 21 [2022-11-25 22:26:07,169 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:26:07,191 INFO L321 Elim1Store]: treesize reduction 18, result has 28.0 percent of original size [2022-11-25 22:26:07,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 35 [2022-11-25 22:26:08,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:08,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:08,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:08,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:08,477 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:26:08,483 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:26:08,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 45 [2022-11-25 22:26:09,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:09,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:09,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:09,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:09,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:09,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:09,969 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:26:09,977 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:26:09,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 51 treesize of output 59 [2022-11-25 22:26:11,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:11,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:11,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:11,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:11,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:11,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:11,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:11,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:11,787 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:26:11,794 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:26:11,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 62 treesize of output 73 [2022-11-25 22:26:13,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:13,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:13,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:13,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:13,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:13,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:13,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:13,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:13,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:13,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:13,493 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:26:13,499 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:26:13,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 73 treesize of output 87 [2022-11-25 22:26:15,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:15,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:15,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:15,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:15,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:15,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:15,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:15,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:15,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:15,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:15,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:15,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:15,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:15,128 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:26:15,134 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:26:15,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 80 treesize of output 97 [2022-11-25 22:26:16,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:16,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:16,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:16,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:16,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:16,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:16,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:16,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:16,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:16,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:16,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:16,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:16,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:16,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:16,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:16,695 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:26:16,701 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:26:16,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 7 case distinctions, treesize of input 90 treesize of output 110 [2022-11-25 22:26:18,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:18,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:18,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:18,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:18,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:18,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:18,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:18,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:18,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:18,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:18,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:18,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:18,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:18,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:18,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:18,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:18,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:18,359 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:26:18,366 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:26:18,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 8 case distinctions, treesize of input 100 treesize of output 123 [2022-11-25 22:26:20,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:20,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:20,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:20,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:20,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:20,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:20,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:20,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:20,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:20,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:20,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:20,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:20,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:20,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:20,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:20,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:20,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:20,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:20,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:20,209 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:26:20,215 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:26:20,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 9 case distinctions, treesize of input 110 treesize of output 136 [2022-11-25 22:26:22,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:22,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:22,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:22,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:22,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:22,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:22,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:22,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:22,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:22,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:22,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:22,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:22,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:22,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:22,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:22,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:22,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:22,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:22,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:22,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:22,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:22,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:22,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:22,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:22,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:22,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:22,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:22,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:22,209 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:26:22,216 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:26:22,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 55 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 10 case distinctions, treesize of input 121 treesize of output 150 [2022-11-25 22:26:24,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:24,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:24,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:24,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:24,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:24,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:24,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:24,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:24,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:24,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:24,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:24,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:24,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:24,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:24,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:24,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:24,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:24,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:24,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:24,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:24,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:24,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:24,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:24,389 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:26:24,396 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:26:24,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 66 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 11 case distinctions, treesize of input 130 treesize of output 162 [2022-11-25 22:26:26,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:26,755 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:26:26,763 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:26:26,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 78 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 12 case distinctions, treesize of input 141 treesize of output 176 [2022-11-25 22:26:29,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:29,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:29,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:29,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:29,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:29,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:29,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:29,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:29,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:29,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:29,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:29,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:29,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:29,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:29,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:29,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:29,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:29,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:29,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:29,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:29,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:29,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:29,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:29,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:29,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:29,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:29,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:29,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:29,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:29,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:29,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:29,229 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:26:29,237 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:26:29,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 13 case distinctions, treesize of input 150 treesize of output 188 [2022-11-25 22:26:31,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:31,907 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:26:31,916 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:26:31,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 105 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 14 case distinctions, treesize of input 160 treesize of output 201 [2022-11-25 22:26:35,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:35,137 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:26:35,146 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 22:26:35,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 121 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 15 case distinctions, treesize of input 155 treesize of output 199 [2022-11-25 22:26:57,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:57,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:57,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:57,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:57,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:57,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:57,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:57,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:57,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:57,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:57,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:57,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:57,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:57,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:57,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:57,304 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:26:57,304 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:26:57,305 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:26:57,306 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:26:57,306 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:26:57,307 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:26:57,307 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:26:57,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:57,312 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:26:57,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:57,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:57,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:57,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:57,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:57,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:57,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:57,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:57,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:26:57,336 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:26:57,360 INFO L321 Elim1Store]: treesize reduction 26, result has 21.2 percent of original size [2022-11-25 22:26:57,361 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 17 select indices, 17 select index equivalence classes, 150 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 17 case distinctions, treesize of input 229 treesize of output 304 [2022-11-25 22:27:03,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,476 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:27:03,477 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:27:03,478 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:27:03,478 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:27:03,479 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:27:03,479 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:27:03,480 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:27:03,480 INFO L217 Elim1Store]: Index analysis took 162 ms [2022-11-25 22:27:03,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,497 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:27:03,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:27:03,503 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 22:27:03,514 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-25 22:27:03,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 25 select indices, 25 select index equivalence classes, 241 disjoint index pairs (out of 300 index pairs), introduced 25 new quantified variables, introduced 24 case distinctions, treesize of input 307 treesize of output 406 [2022-11-25 22:27:28,143 INFO L321 Elim1Store]: treesize reduction 290, result has 2.4 percent of original size [2022-11-25 22:27:28,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 35 select indices, 35 select index equivalence classes, 121 disjoint index pairs (out of 595 index pairs), introduced 35 new quantified variables, introduced 66 case distinctions, treesize of input 246 treesize of output 112 [2022-11-25 22:27:28,167 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 41 proven. 281 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-25 22:27:28,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:27:28,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [220967887] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:27:28,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006926899] [2022-11-25 22:27:28,254 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 22:27:28,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:27:28,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:27:28,255 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:27:28,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12949e33-3c0c-4edc-b03f-f314ec88589a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process