./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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_27e2dac7-3f7e-4576-82db-2798d311dd24/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 71774aeec0d0f8840a1b18b633767b26c38c9eb9d26569d28cdf01c44c9881ac --- 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 22:38:22,529 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:38:22,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:38:22,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:38:22,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:38:22,583 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:38:22,586 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:38:22,590 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:38:22,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:38:22,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:38:22,602 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:38:22,603 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:38:22,605 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:38:22,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:38:22,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:38:22,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:38:22,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:38:22,615 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:38:22,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:38:22,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:38:22,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:38:22,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:38:22,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:38:22,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:38:22,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:38:22,644 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:38:22,645 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:38:22,648 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:38:22,649 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:38:22,650 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:38:22,650 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:38:22,651 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:38:22,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:38:22,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:38:22,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:38:22,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:38:22,658 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:38:22,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:38:22,659 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:38:22,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:38:22,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:38:22,662 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 22:38:22,709 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:38:22,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:38:22,710 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:38:22,710 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:38:22,711 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:38:22,711 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:38:22,712 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:38:22,712 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:38:22,712 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:38:22,712 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:38:22,713 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:38:22,714 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:38:22,714 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:38:22,714 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:38:22,714 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:38:22,715 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:38:22,715 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:38:22,715 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:38:22,716 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:38:22,716 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:38:22,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:38:22,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:38:22,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:38:22,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:38:22,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:38:22,717 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:38:22,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:38:22,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:38:22,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:38:22,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:38:22,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:38:22,719 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:38:22,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:38:22,720 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:38:22,720 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:38:22,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:38:22,720 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:38:22,721 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:38:22,721 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_27e2dac7-3f7e-4576-82db-2798d311dd24/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71774aeec0d0f8840a1b18b633767b26c38c9eb9d26569d28cdf01c44c9881ac [2022-11-25 22:38:23,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:38:23,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:38:23,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:38:23,074 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:38:23,075 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:38:23,076 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i [2022-11-25 22:38:26,500 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:38:27,044 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:38:27,044 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i [2022-11-25 22:38:27,093 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/data/755e524d0/75f1fe64794347798a7916ce2dc69a85/FLAG28ae258f3 [2022-11-25 22:38:27,111 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/data/755e524d0/75f1fe64794347798a7916ce2dc69a85 [2022-11-25 22:38:27,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:38:27,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:38:27,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:38:27,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:38:27,124 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:38:27,125 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:38:27" (1/1) ... [2022-11-25 22:38:27,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e9ab053 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:38:27, skipping insertion in model container [2022-11-25 22:38:27,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:38:27" (1/1) ... [2022-11-25 22:38:27,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:38:27,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:38:27,629 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_27e2dac7-3f7e-4576-82db-2798d311dd24/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4496,4509] [2022-11-25 22:38:27,638 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_27e2dac7-3f7e-4576-82db-2798d311dd24/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4556,4569] [2022-11-25 22:38:28,880 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:38:28,886 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:28,896 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:28,897 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:28,898 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:28,901 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:28,906 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:38:28,920 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:28,923 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:38:28,923 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:28,930 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:28,934 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:28,940 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:28,943 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:38:28,944 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:28,945 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:28,946 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:29,096 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:38:29,097 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:38:29,099 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:38:29,104 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 22:38:29,109 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 22:38:29,110 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 22:38:29,567 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 22:38:29,568 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 22:38:29,569 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 22:38:29,571 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 22:38:29,572 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 22:38:29,574 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 22:38:29,574 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 22:38:29,575 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 22:38:29,576 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 22:38:29,577 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 22:38:29,578 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 22:38:29,755 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-25 22:38:29,787 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:29,790 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:38:29,793 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:38:29,794 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:38:29,796 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:29,799 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:38:29,803 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:38:29,804 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:38:29,804 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:38:29,805 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:38:29,806 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:38:29,806 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:38:29,855 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 22:38:29,874 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:29,875 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:29,875 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:29,876 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:29,876 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:29,877 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:29,877 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:29,878 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 22:38:29,879 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:29,879 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:29,879 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:29,880 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:29,880 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:29,881 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:29,884 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:29,884 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:29,885 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:29,885 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:29,889 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:29,889 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:29,898 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:29,899 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:29,900 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:29,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:38:29,945 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:38:29,960 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_27e2dac7-3f7e-4576-82db-2798d311dd24/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4496,4509] [2022-11-25 22:38:29,961 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_27e2dac7-3f7e-4576-82db-2798d311dd24/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4556,4569] [2022-11-25 22:38:29,998 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:38:30,013 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,014 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,015 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,016 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,017 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,019 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:38:30,030 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,036 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:38:30,036 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,037 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,040 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,041 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,042 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:38:30,043 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,044 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,044 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,052 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:38:30,054 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:38:30,056 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:38:30,061 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 22:38:30,065 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 22:38:30,065 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 22:38:30,109 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 22:38:30,118 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 22:38:30,120 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 22:38:30,121 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 22:38:30,124 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 22:38:30,128 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 22:38:30,128 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 22:38:30,129 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 22:38:30,130 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 22:38:30,130 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 22:38:30,131 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 22:38:30,180 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-25 22:38:30,204 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,206 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:38:30,209 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:38:30,210 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:38:30,212 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,214 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:38:30,216 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:38:30,216 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:38:30,217 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:38:30,219 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:38:30,220 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:38:30,221 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:38:30,251 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 22:38:30,259 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,261 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,262 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,262 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,263 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,263 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,264 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,264 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 22:38:30,265 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,265 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,265 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,266 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,266 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,266 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,267 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,268 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,268 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,268 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,271 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,272 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,283 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,288 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,289 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:38:30,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:38:30,598 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:38:30,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:38:30 WrapperNode [2022-11-25 22:38:30,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:38:30,601 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:38:30,601 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:38:30,601 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:38:30,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:38:30" (1/1) ... [2022-11-25 22:38:30,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:38:30" (1/1) ... [2022-11-25 22:38:30,777 INFO L138 Inliner]: procedures = 697, calls = 1917, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 1032 [2022-11-25 22:38:30,778 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:38:30,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:38:30,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:38:30,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:38:30,789 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:38:30" (1/1) ... [2022-11-25 22:38:30,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:38:30" (1/1) ... [2022-11-25 22:38:30,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:38:30" (1/1) ... [2022-11-25 22:38:30,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:38:30" (1/1) ... [2022-11-25 22:38:30,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:38:30" (1/1) ... [2022-11-25 22:38:30,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:38:30" (1/1) ... [2022-11-25 22:38:30,896 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:38:30" (1/1) ... [2022-11-25 22:38:30,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:38:30" (1/1) ... [2022-11-25 22:38:30,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:38:30,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:38:30,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:38:30,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:38:30,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:38:30" (1/1) ... [2022-11-25 22:38:30,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:38:30,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:38:30,957 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:38:30,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:38:31,005 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-11-25 22:38:31,006 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-11-25 22:38:31,006 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-11-25 22:38:31,006 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-11-25 22:38:31,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:38:31,006 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-25 22:38:31,006 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-25 22:38:31,007 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-25 22:38:31,007 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-25 22:38:31,008 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-25 22:38:31,008 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-25 22:38:31,008 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-11-25 22:38:31,009 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-11-25 22:38:31,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 22:38:31,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:38:31,010 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-25 22:38:31,010 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-25 22:38:31,010 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 22:38:31,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 22:38:31,011 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_node [2022-11-25 22:38:31,011 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_node [2022-11-25 22:38:31,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 22:38:31,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:38:31,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 22:38:31,011 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-11-25 22:38:31,012 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-11-25 22:38:31,012 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-25 22:38:31,012 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-25 22:38:31,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:38:31,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:38:31,012 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-25 22:38:31,012 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-25 22:38:31,012 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-25 22:38:31,013 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-25 22:38:31,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 22:38:31,013 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-11-25 22:38:31,013 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-11-25 22:38:31,014 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-11-25 22:38:31,014 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-11-25 22:38:31,014 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-25 22:38:31,016 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-25 22:38:31,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 22:38:31,016 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 22:38:31,016 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 22:38:31,017 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 22:38:31,018 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-25 22:38:31,018 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-25 22:38:31,018 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2022-11-25 22:38:31,018 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2022-11-25 22:38:31,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:38:31,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 22:38:31,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 22:38:31,018 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-11-25 22:38:31,019 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-11-25 22:38:31,019 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-25 22:38:31,019 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-25 22:38:31,019 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-25 22:38:31,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-25 22:38:31,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:38:31,019 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-25 22:38:31,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-25 22:38:31,020 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-11-25 22:38:31,020 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-11-25 22:38:31,020 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-25 22:38:31,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-25 22:38:31,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:38:31,020 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2022-11-25 22:38:31,020 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2022-11-25 22:38:31,530 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:38:31,533 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:38:33,783 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:38:34,089 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:38:34,090 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-25 22:38:34,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:38:34 BoogieIcfgContainer [2022-11-25 22:38:34,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:38:34,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:38:34,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:38:34,142 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:38:34,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:38:27" (1/3) ... [2022-11-25 22:38:34,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b9d727 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:38:34, skipping insertion in model container [2022-11-25 22:38:34,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:38:30" (2/3) ... [2022-11-25 22:38:34,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b9d727 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:38:34, skipping insertion in model container [2022-11-25 22:38:34,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:38:34" (3/3) ... [2022-11-25 22:38:34,145 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_pop_harness.i [2022-11-25 22:38:34,167 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:38:34,167 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 22:38:34,233 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:38:34,241 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;@687e22dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:38:34,241 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 22:38:34,247 INFO L276 IsEmpty]: Start isEmpty. Operand has 377 states, 192 states have (on average 1.2083333333333333) internal successors, (232), 195 states have internal predecessors, (232), 156 states have call successors, (156), 27 states have call predecessors, (156), 27 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2022-11-25 22:38:34,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-25 22:38:34,264 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:38:34,265 INFO L195 NwaCegarLoop]: trace histogram [9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:38:34,265 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:38:34,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:38:34,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1100861225, now seen corresponding path program 1 times [2022-11-25 22:38:34,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:38:34,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453616318] [2022-11-25 22:38:34,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:34,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:38:34,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:35,535 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-11-25 22:38:35,536 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:38:35,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453616318] [2022-11-25 22:38:35,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453616318] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:38:35,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480548722] [2022-11-25 22:38:35,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:35,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:38:35,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:38:35,541 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:38:35,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:38:36,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:36,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 2412 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 22:38:36,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:38:36,526 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-25 22:38:36,526 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:38:36,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480548722] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:38:36,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:38:36,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-11-25 22:38:36,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850505620] [2022-11-25 22:38:36,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:38:36,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:38:36,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:38:36,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:38:36,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-25 22:38:36,605 INFO L87 Difference]: Start difference. First operand has 377 states, 192 states have (on average 1.2083333333333333) internal successors, (232), 195 states have internal predecessors, (232), 156 states have call successors, (156), 27 states have call predecessors, (156), 27 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-25 22:38:38,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:38:40,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:38:40,420 INFO L93 Difference]: Finished difference Result 725 states and 1115 transitions. [2022-11-25 22:38:40,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:38:40,423 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 101 [2022-11-25 22:38:40,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:38:40,439 INFO L225 Difference]: With dead ends: 725 [2022-11-25 22:38:40,440 INFO L226 Difference]: Without dead ends: 376 [2022-11-25 22:38:40,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-25 22:38:40,454 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 40 mSDsluCounter, 1317 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 1785 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:38:40,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 1785 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-25 22:38:40,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-11-25 22:38:40,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2022-11-25 22:38:40,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 191 states have (on average 1.193717277486911) internal successors, (228), 195 states have internal predecessors, (228), 156 states have call successors, (156), 27 states have call predecessors, (156), 27 states have return successors, (167), 154 states have call predecessors, (167), 154 states have call successors, (167) [2022-11-25 22:38:40,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 551 transitions. [2022-11-25 22:38:40,584 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 551 transitions. Word has length 101 [2022-11-25 22:38:40,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:38:40,585 INFO L495 AbstractCegarLoop]: Abstraction has 376 states and 551 transitions. [2022-11-25 22:38:40,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-25 22:38:40,586 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 551 transitions. [2022-11-25 22:38:40,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-25 22:38:40,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:38:40,598 INFO L195 NwaCegarLoop]: trace histogram [9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:38:40,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 22:38:40,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-25 22:38:40,809 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:38:40,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:38:40,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1354502779, now seen corresponding path program 1 times [2022-11-25 22:38:40,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:38:40,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153046377] [2022-11-25 22:38:40,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:40,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:38:40,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:41,536 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-25 22:38:41,537 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:38:41,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153046377] [2022-11-25 22:38:41,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153046377] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:38:41,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360936409] [2022-11-25 22:38:41,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:41,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:38:41,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:38:41,539 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:38:41,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 22:38:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:42,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 2462 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 22:38:42,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:38:42,428 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-25 22:38:42,428 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:38:42,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360936409] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:38:42,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:38:42,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-25 22:38:42,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383697074] [2022-11-25 22:38:42,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:38:42,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 22:38:42,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:38:42,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 22:38:42,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-11-25 22:38:42,434 INFO L87 Difference]: Start difference. First operand 376 states and 551 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-25 22:38:44,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:38:47,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:38:47,228 INFO L93 Difference]: Finished difference Result 735 states and 1109 transitions. [2022-11-25 22:38:47,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:38:47,228 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 109 [2022-11-25 22:38:47,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:38:47,233 INFO L225 Difference]: With dead ends: 735 [2022-11-25 22:38:47,233 INFO L226 Difference]: Without dead ends: 389 [2022-11-25 22:38:47,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-25 22:38:47,238 INFO L413 NwaCegarLoop]: 454 mSDtfsCounter, 55 mSDsluCounter, 2139 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 2593 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:38:47,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 2593 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-25 22:38:47,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2022-11-25 22:38:47,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 387. [2022-11-25 22:38:47,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 199 states have (on average 1.1959798994974875) internal successors, (238), 203 states have internal predecessors, (238), 158 states have call successors, (158), 27 states have call predecessors, (158), 28 states have return successors, (186), 157 states have call predecessors, (186), 156 states have call successors, (186) [2022-11-25 22:38:47,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 582 transitions. [2022-11-25 22:38:47,279 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 582 transitions. Word has length 109 [2022-11-25 22:38:47,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:38:47,279 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 582 transitions. [2022-11-25 22:38:47,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-25 22:38:47,280 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 582 transitions. [2022-11-25 22:38:47,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-25 22:38:47,282 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:38:47,282 INFO L195 NwaCegarLoop]: trace histogram [9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:38:47,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 22:38:47,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-25 22:38:47,493 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:38:47,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:38:47,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1604406546, now seen corresponding path program 1 times [2022-11-25 22:38:47,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:38:47,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103504045] [2022-11-25 22:38:47,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:47,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:38:47,633 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:38:47,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [382302256] [2022-11-25 22:38:47,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:47,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:38:47,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:38:47,636 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:38:47,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 22:38:48,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:48,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 2594 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 22:38:48,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:38:48,436 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-25 22:38:48,436 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:38:48,436 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:38:48,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103504045] [2022-11-25 22:38:48,437 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:38:48,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382302256] [2022-11-25 22:38:48,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [382302256] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:38:48,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:38:48,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 22:38:48,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982928144] [2022-11-25 22:38:48,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:38:48,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:38:48,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:38:48,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:38:48,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:38:48,441 INFO L87 Difference]: Start difference. First operand 387 states and 582 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-25 22:38:51,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:38:52,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:38:52,341 INFO L93 Difference]: Finished difference Result 752 states and 1170 transitions. [2022-11-25 22:38:52,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:38:52,342 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 118 [2022-11-25 22:38:52,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:38:52,355 INFO L225 Difference]: With dead ends: 752 [2022-11-25 22:38:52,356 INFO L226 Difference]: Without dead ends: 395 [2022-11-25 22:38:52,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-25 22:38:52,367 INFO L413 NwaCegarLoop]: 466 mSDtfsCounter, 51 mSDsluCounter, 1744 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 2210 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:38:52,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 2210 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-25 22:38:52,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2022-11-25 22:38:52,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 387. [2022-11-25 22:38:52,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 199 states have (on average 1.1959798994974875) internal successors, (238), 203 states have internal predecessors, (238), 158 states have call successors, (158), 27 states have call predecessors, (158), 28 states have return successors, (186), 157 states have call predecessors, (186), 156 states have call successors, (186) [2022-11-25 22:38:52,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 582 transitions. [2022-11-25 22:38:52,449 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 582 transitions. Word has length 118 [2022-11-25 22:38:52,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:38:52,450 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 582 transitions. [2022-11-25 22:38:52,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-25 22:38:52,451 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 582 transitions. [2022-11-25 22:38:52,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-25 22:38:52,455 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:38:52,456 INFO L195 NwaCegarLoop]: trace histogram [9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:38:52,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 22:38:52,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:38:52,672 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:38:52,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:38:52,673 INFO L85 PathProgramCache]: Analyzing trace with hash 477784719, now seen corresponding path program 1 times [2022-11-25 22:38:52,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:38:52,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257484392] [2022-11-25 22:38:52,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:52,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:38:52,807 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:38:52,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1470935002] [2022-11-25 22:38:52,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:52,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:38:52,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:38:52,811 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:38:52,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 22:38:53,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:53,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 2648 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 22:38:53,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:38:53,710 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-25 22:38:53,710 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:38:53,710 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:38:53,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257484392] [2022-11-25 22:38:53,712 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:38:53,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470935002] [2022-11-25 22:38:53,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470935002] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:38:53,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:38:53,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 22:38:53,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791779642] [2022-11-25 22:38:53,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:38:53,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 22:38:53,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:38:53,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 22:38:53,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 22:38:53,715 INFO L87 Difference]: Start difference. First operand 387 states and 582 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2022-11-25 22:38:56,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:38:57,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:38:57,188 INFO L93 Difference]: Finished difference Result 754 states and 1162 transitions. [2022-11-25 22:38:57,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 22:38:57,189 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) Word has length 126 [2022-11-25 22:38:57,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:38:57,193 INFO L225 Difference]: With dead ends: 754 [2022-11-25 22:38:57,193 INFO L226 Difference]: Without dead ends: 397 [2022-11-25 22:38:57,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-25 22:38:57,202 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 57 mSDsluCounter, 2576 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 3029 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:38:57,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 3029 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 772 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-11-25 22:38:57,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2022-11-25 22:38:57,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 395. [2022-11-25 22:38:57,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 205 states have (on average 1.1951219512195121) internal successors, (245), 209 states have internal predecessors, (245), 159 states have call successors, (159), 27 states have call predecessors, (159), 29 states have return successors, (201), 159 states have call predecessors, (201), 157 states have call successors, (201) [2022-11-25 22:38:57,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 605 transitions. [2022-11-25 22:38:57,248 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 605 transitions. Word has length 126 [2022-11-25 22:38:57,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:38:57,251 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 605 transitions. [2022-11-25 22:38:57,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2022-11-25 22:38:57,252 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 605 transitions. [2022-11-25 22:38:57,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-25 22:38:57,257 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:38:57,257 INFO L195 NwaCegarLoop]: trace histogram [9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:38:57,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 22:38:57,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:38:57,476 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:38:57,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:38:57,476 INFO L85 PathProgramCache]: Analyzing trace with hash -868814432, now seen corresponding path program 2 times [2022-11-25 22:38:57,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:38:57,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187905667] [2022-11-25 22:38:57,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:57,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:38:57,593 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:38:57,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2095688160] [2022-11-25 22:38:57,593 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 22:38:57,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:38:57,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:38:57,595 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:38:57,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 22:38:58,565 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-25 22:38:58,566 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:38:58,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 1881 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 22:38:58,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:38:58,624 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-11-25 22:38:58,624 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:38:58,624 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:38:58,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187905667] [2022-11-25 22:38:58,625 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:38:58,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095688160] [2022-11-25 22:38:58,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2095688160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:38:58,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:38:58,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:38:58,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128010243] [2022-11-25 22:38:58,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:38:58,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:38:58,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:38:58,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:38:58,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:38:58,629 INFO L87 Difference]: Start difference. First operand 395 states and 605 transitions. Second operand has 5 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-25 22:39:01,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:39:01,234 INFO L93 Difference]: Finished difference Result 728 states and 1147 transitions. [2022-11-25 22:39:01,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:39:01,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 135 [2022-11-25 22:39:01,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:39:01,239 INFO L225 Difference]: With dead ends: 728 [2022-11-25 22:39:01,239 INFO L226 Difference]: Without dead ends: 395 [2022-11-25 22:39:01,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:39:01,243 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 0 mSDsluCounter, 1321 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1780 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-25 22:39:01,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1780 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-25 22:39:01,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2022-11-25 22:39:01,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 395. [2022-11-25 22:39:01,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 205 states have (on average 1.1951219512195121) internal successors, (245), 209 states have internal predecessors, (245), 159 states have call successors, (159), 27 states have call predecessors, (159), 29 states have return successors, (200), 159 states have call predecessors, (200), 157 states have call successors, (200) [2022-11-25 22:39:01,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 604 transitions. [2022-11-25 22:39:01,273 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 604 transitions. Word has length 135 [2022-11-25 22:39:01,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:39:01,274 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 604 transitions. [2022-11-25 22:39:01,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-25 22:39:01,275 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 604 transitions. [2022-11-25 22:39:01,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-25 22:39:01,277 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:39:01,277 INFO L195 NwaCegarLoop]: trace histogram [9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:39:01,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 22:39:01,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:39:01,489 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:39:01,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:39:01,489 INFO L85 PathProgramCache]: Analyzing trace with hash 2041113535, now seen corresponding path program 3 times [2022-11-25 22:39:01,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:39:01,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111603546] [2022-11-25 22:39:01,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:01,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:39:01,592 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:39:01,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1597367169] [2022-11-25 22:39:01,593 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 22:39:01,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:39:01,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:39:01,594 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:39:01,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 22:39:02,084 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 22:39:02,084 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:39:02,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-25 22:39:02,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:39:02,302 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 74 proven. 2 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-25 22:39:02,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:39:02,771 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-11-25 22:39:02,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:39:02,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111603546] [2022-11-25 22:39:02,772 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:39:02,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597367169] [2022-11-25 22:39:02,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597367169] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:39:02,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [155301697] [2022-11-25 22:39:02,796 INFO L159 IcfgInterpreter]: Started Sifa with 83 locations of interest [2022-11-25 22:39:02,796 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:39:02,800 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:39:02,806 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:39:02,806 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:39:06,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:06,798 INFO L217 Elim1Store]: Index analysis took 552 ms [2022-11-25 22:39:25,210 WARN L233 SmtUtils]: Spent 18.34s on a formula simplification. DAG size of input: 1758 DAG size of output: 1169 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:39:25,216 INFO L321 Elim1Store]: treesize reduction 1958, result has 47.2 percent of original size [2022-11-25 22:39:25,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 196 select indices, 196 select index equivalence classes, 19112 disjoint index pairs (out of 19110 index pairs), introduced 196 new quantified variables, introduced 195 case distinctions, treesize of input 987 treesize of output 2346 [2022-11-25 22:39:28,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:39:28,971 INFO L217 Elim1Store]: Index analysis took 803 ms [2022-11-25 22:39:57,509 WARN L233 SmtUtils]: Spent 28.48s on a formula simplification. DAG size of input: 2150 DAG size of output: 1173 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:39:57,513 INFO L321 Elim1Store]: treesize reduction 3510, result has 33.3 percent of original size [2022-11-25 22:39:57,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 198 select indices, 198 select index equivalence classes, 19308 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 390 case distinctions, treesize of input 997 treesize of output 2365 [2022-11-25 22:41:27,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:27,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:27,766 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 38 treesize of output 29 [2022-11-25 22:41:27,773 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 15 treesize of output 1 [2022-11-25 22:41:27,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:27,783 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 44 treesize of output 43 [2022-11-25 22:41:27,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:27,793 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 44 treesize of output 43 [2022-11-25 22:41:31,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:31,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:31,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:31,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:31,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:31,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:31,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:31,784 INFO L217 Elim1Store]: Index analysis took 149 ms [2022-11-25 22:41:31,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-25 22:41:32,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:32,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:32,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:32,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:32,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:32,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:32,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:32,457 INFO L217 Elim1Store]: Index analysis took 131 ms [2022-11-25 22:41:32,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-25 22:41:33,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:33,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 197 select indices, 197 select index equivalence classes, 19307 disjoint index pairs (out of 19306 index pairs), introduced 197 new quantified variables, introduced 0 case distinctions, treesize of input 986 treesize of output 592 [2022-11-25 22:41:33,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:33,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 198 select indices, 198 select index equivalence classes, 19503 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 0 case distinctions, treesize of input 991 treesize of output 595 [2022-11-25 22:41:34,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:34,280 INFO L217 Elim1Store]: Index analysis took 139 ms [2022-11-25 22:41:34,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 57 select indices, 57 select index equivalence classes, 1055 disjoint index pairs (out of 1596 index pairs), introduced 57 new quantified variables, introduced 0 case distinctions, treesize of input 588 treesize of output 260 [2022-11-25 22:41:42,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:42,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:42,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:42,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:42,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:42,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:42,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:42,263 INFO L217 Elim1Store]: Index analysis took 132 ms [2022-11-25 22:41:42,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-25 22:41:42,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:42,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 198 select indices, 198 select index equivalence classes, 19503 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 0 case distinctions, treesize of input 991 treesize of output 595 [2022-11-25 22:41:43,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 197 select indices, 197 select index equivalence classes, 19307 disjoint index pairs (out of 19306 index pairs), introduced 197 new quantified variables, introduced 0 case distinctions, treesize of input 986 treesize of output 592 [2022-11-25 22:41:43,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:43,932 INFO L217 Elim1Store]: Index analysis took 119 ms [2022-11-25 22:41:43,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 57 select indices, 57 select index equivalence classes, 1055 disjoint index pairs (out of 1596 index pairs), introduced 57 new quantified variables, introduced 0 case distinctions, treesize of input 588 treesize of output 260 [2022-11-25 22:41:44,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:44,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:44,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:44,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:44,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:44,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:44,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:41:44,513 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-25 22:42:01,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2022-11-25 22:42:01,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2022-11-25 22:42:02,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-25 22:42:02,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2022-11-25 22:42:02,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2022-11-25 22:42:02,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-25 22:42:18,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-25 22:42:18,096 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2022-11-25 22:42:18,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2022-11-25 22:42:18,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-25 22:42:18,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2022-11-25 22:42:18,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2022-11-25 22:42:21,099 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 2171 treesize of output 2161 [2022-11-25 22:42:21,638 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 2175 treesize of output 2154 [2022-11-25 22:42:21,823 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 2171 treesize of output 2161 [2022-11-25 22:42:22,948 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 15 treesize of output 1 [2022-11-25 22:42:36,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-25 22:42:36,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 22:42:36,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 22:42:36,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-25 22:42:36,743 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 15 treesize of output 1 [2022-11-25 22:42:36,750 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 15 treesize of output 1 [2022-11-25 22:42:36,757 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 13 treesize of output 9 [2022-11-25 22:42:36,778 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 15 treesize of output 1 [2022-11-25 22:42:36,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-25 22:42:36,854 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 22:42:36,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 38 [2022-11-25 22:42:36,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-25 22:42:36,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-25 22:42:36,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-25 22:42:36,946 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 22:42:36,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 38 [2022-11-25 22:42:37,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 22:42:37,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 22:42:37,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2022-11-25 22:42:37,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 22:42:37,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2022-11-25 22:42:39,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 2167 treesize of output 2139 [2022-11-25 22:42:39,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 2143 treesize of output 2115 [2022-11-25 22:42:39,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2111 treesize of output 2087 [2022-11-25 22:42:56,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 2167 treesize of output 2139 [2022-11-25 22:42:56,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2135 treesize of output 2111 [2022-11-25 22:42:56,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 2119 treesize of output 2091 [2022-11-25 22:44:09,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:44:09,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:44:09,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:44:09,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:44:09,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:44:09,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 44 [2022-11-25 22:44:09,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-25 22:44:09,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2022-11-25 22:44:10,387 INFO L321 Elim1Store]: treesize reduction 84, result has 9.7 percent of original size [2022-11-25 22:44:10,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 197 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 227 treesize of output 236 [2022-11-25 22:44:11,132 INFO L321 Elim1Store]: treesize reduction 156, result has 10.3 percent of original size [2022-11-25 22:44:11,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 197 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 221 treesize of output 240 [2022-11-25 22:44:11,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 198 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 89 [2022-11-25 22:44:11,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 198 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 92 [2022-11-25 22:44:12,050 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 7 treesize of output 3 [2022-11-25 22:44:12,137 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 7 treesize of output 3 [2022-11-25 22:44:12,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 22:44:12,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 9 [2022-11-25 22:44:13,680 INFO L321 Elim1Store]: treesize reduction 84, result has 9.7 percent of original size [2022-11-25 22:44:13,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 197 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 227 treesize of output 236 [2022-11-25 22:44:16,165 INFO L321 Elim1Store]: treesize reduction 156, result has 10.3 percent of original size [2022-11-25 22:44:16,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 197 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 221 treesize of output 240 [2022-11-25 22:44:16,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 198 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 89 [2022-11-25 22:44:16,619 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 7 treesize of output 3 [2022-11-25 22:44:17,288 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-25 22:44:17,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 197 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 237 treesize of output 233 [2022-11-25 22:44:17,687 INFO L321 Elim1Store]: treesize reduction 21, result has 46.2 percent of original size [2022-11-25 22:44:17,687 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 197 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 50 [2022-11-25 22:44:18,026 INFO L321 Elim1Store]: treesize reduction 108, result has 14.3 percent of original size [2022-11-25 22:44:18,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 197 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 131 treesize of output 150 [2022-11-25 22:44:18,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 302 treesize of output 294 [2022-11-25 22:44:18,700 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 95 treesize of output 84 [2022-11-25 22:44:18,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 238 treesize of output 214 [2022-11-25 22:44:18,950 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 110 treesize of output 103 [2022-11-25 22:44:19,136 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 106 treesize of output 99 [2022-11-25 22:44:19,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 196 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 102 [2022-11-25 22:44:19,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 22:44:19,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:44:19,668 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: no need to replace index at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:333) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructDerEnabler(DerPreprocessor.java:187) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.(DerPreprocessor.java:144) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:353) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:122) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:627) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:606) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:528) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:285) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:119) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-25 22:44:19,672 INFO L158 Benchmark]: Toolchain (without parser) took 352555.53ms. Allocated memory was 172.0MB in the beginning and 620.8MB in the end (delta: 448.8MB). Free memory was 120.1MB in the beginning and 351.5MB in the end (delta: -231.4MB). Peak memory consumption was 414.6MB. Max. memory is 16.1GB. [2022-11-25 22:44:19,673 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 123.7MB. Free memory was 87.7MB in the beginning and 87.7MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:44:19,673 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3480.20ms. Allocated memory is still 172.0MB. Free memory was 120.1MB in the beginning and 75.8MB in the end (delta: 44.3MB). Peak memory consumption was 76.1MB. Max. memory is 16.1GB. [2022-11-25 22:44:19,673 INFO L158 Benchmark]: Boogie Procedure Inliner took 177.01ms. Allocated memory is still 172.0MB. Free memory was 75.8MB in the beginning and 64.3MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 22:44:19,674 INFO L158 Benchmark]: Boogie Preprocessor took 137.97ms. Allocated memory is still 172.0MB. Free memory was 64.3MB in the beginning and 114.6MB in the end (delta: -50.3MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2022-11-25 22:44:19,674 INFO L158 Benchmark]: RCFGBuilder took 3176.83ms. Allocated memory was 172.0MB in the beginning and 222.3MB in the end (delta: 50.3MB). Free memory was 114.6MB in the beginning and 66.7MB in the end (delta: 47.9MB). Peak memory consumption was 101.4MB. Max. memory is 16.1GB. [2022-11-25 22:44:19,674 INFO L158 Benchmark]: TraceAbstraction took 345534.12ms. Allocated memory was 222.3MB in the beginning and 620.8MB in the end (delta: 398.5MB). Free memory was 160.8MB in the beginning and 351.5MB in the end (delta: -190.7MB). Peak memory consumption was 402.6MB. Max. memory is 16.1GB. [2022-11-25 22:44:19,676 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 123.7MB. Free memory was 87.7MB in the beginning and 87.7MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3480.20ms. Allocated memory is still 172.0MB. Free memory was 120.1MB in the beginning and 75.8MB in the end (delta: 44.3MB). Peak memory consumption was 76.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 177.01ms. Allocated memory is still 172.0MB. Free memory was 75.8MB in the beginning and 64.3MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 137.97ms. Allocated memory is still 172.0MB. Free memory was 64.3MB in the beginning and 114.6MB in the end (delta: -50.3MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. * RCFGBuilder took 3176.83ms. Allocated memory was 172.0MB in the beginning and 222.3MB in the end (delta: 50.3MB). Free memory was 114.6MB in the beginning and 66.7MB in the end (delta: 47.9MB). Peak memory consumption was 101.4MB. Max. memory is 16.1GB. * TraceAbstraction took 345534.12ms. Allocated memory was 222.3MB in the beginning and 620.8MB in the end (delta: 398.5MB). Free memory was 160.8MB in the beginning and 351.5MB in the end (delta: -190.7MB). Peak memory consumption was 402.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: no need to replace index de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: no need to replace index: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:333) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-25 22:44:19,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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_27e2dac7-3f7e-4576-82db-2798d311dd24/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 71774aeec0d0f8840a1b18b633767b26c38c9eb9d26569d28cdf01c44c9881ac --- 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 22:44:22,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:44:22,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:44:22,499 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:44:22,501 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:44:22,503 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:44:22,509 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:44:22,516 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:44:22,518 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:44:22,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:44:22,523 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:44:22,525 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:44:22,528 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:44:22,532 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:44:22,534 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:44:22,538 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:44:22,539 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:44:22,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:44:22,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:44:22,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:44:22,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:44:22,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:44:22,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:44:22,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:44:22,573 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:44:22,574 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:44:22,574 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:44:22,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:44:22,576 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:44:22,578 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:44:22,579 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:44:22,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:44:22,581 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:44:22,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:44:22,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:44:22,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:44:22,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:44:22,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:44:22,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:44:22,587 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:44:22,588 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:44:22,589 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-25 22:44:22,638 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:44:22,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:44:22,639 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:44:22,639 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:44:22,640 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:44:22,640 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:44:22,641 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:44:22,641 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:44:22,641 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:44:22,642 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:44:22,642 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:44:22,642 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:44:22,643 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:44:22,644 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:44:22,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:44:22,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:44:22,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:44:22,645 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 22:44:22,645 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 22:44:22,645 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 22:44:22,646 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:44:22,646 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:44:22,646 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:44:22,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:44:22,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 22:44:22,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:44:22,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:44:22,652 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:44:22,653 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:44:22,653 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:44:22,653 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 22:44:22,654 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 22:44:22,654 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:44:22,655 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:44:22,655 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 22:44:22,655 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_27e2dac7-3f7e-4576-82db-2798d311dd24/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71774aeec0d0f8840a1b18b633767b26c38c9eb9d26569d28cdf01c44c9881ac [2022-11-25 22:44:23,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:44:23,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:44:23,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:44:23,134 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:44:23,135 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:44:23,137 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i [2022-11-25 22:44:26,475 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:44:26,968 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:44:26,968 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i [2022-11-25 22:44:27,030 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/data/1b025150a/1464fb04c3a94a2fa13a7ebd3aaf1873/FLAG66a5cb1be [2022-11-25 22:44:27,060 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/data/1b025150a/1464fb04c3a94a2fa13a7ebd3aaf1873 [2022-11-25 22:44:27,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:44:27,068 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:44:27,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:44:27,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:44:27,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:44:27,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:44:27" (1/1) ... [2022-11-25 22:44:27,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33d8643c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:44:27, skipping insertion in model container [2022-11-25 22:44:27,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:44:27" (1/1) ... [2022-11-25 22:44:27,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:44:27,228 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:44:27,579 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_27e2dac7-3f7e-4576-82db-2798d311dd24/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4496,4509] [2022-11-25 22:44:27,592 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_27e2dac7-3f7e-4576-82db-2798d311dd24/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4556,4569] [2022-11-25 22:44:28,770 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:28,776 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:28,777 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:28,778 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:28,779 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:28,780 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:28,783 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:28,795 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:28,798 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:28,799 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:28,802 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:28,805 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:28,811 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:28,812 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:28,814 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:28,816 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:28,818 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:28,922 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:44:28,923 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:44:28,929 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:44:28,952 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 22:44:28,954 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 22:44:28,955 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 22:44:29,370 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 22:44:29,372 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 22:44:29,373 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 22:44:29,374 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 22:44:29,379 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 22:44:29,381 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 22:44:29,382 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 22:44:29,383 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 22:44:29,384 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 22:44:29,385 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 22:44:29,386 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 22:44:29,598 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-25 22:44:29,681 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:29,682 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:29,690 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:29,698 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:29,700 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:29,702 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:29,710 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:29,716 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:29,717 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:29,718 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:29,731 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:29,732 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:29,797 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 22:44:29,816 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:29,817 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:29,818 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:29,818 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:29,819 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:29,820 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:29,820 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:29,821 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 22:44:29,821 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:29,822 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:29,822 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:29,823 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:29,823 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:29,824 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:29,827 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:29,828 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:29,828 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:29,829 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:29,832 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:29,833 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:29,842 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:29,843 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:29,843 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:29,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:44:29,901 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-25 22:44:29,972 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:44:29,977 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_27e2dac7-3f7e-4576-82db-2798d311dd24/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4496,4509] [2022-11-25 22:44:29,978 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_27e2dac7-3f7e-4576-82db-2798d311dd24/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4556,4569] [2022-11-25 22:44:30,049 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:30,052 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,054 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,054 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,055 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,055 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,060 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:30,067 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,068 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:30,069 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,070 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,071 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,073 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,073 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:30,074 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,074 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,088 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,103 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:44:30,105 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:44:30,106 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:44:30,110 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 22:44:30,112 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 22:44:30,113 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 22:44:30,160 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 22:44:30,161 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 22:44:30,162 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 22:44:30,163 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 22:44:30,166 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 22:44:30,168 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 22:44:30,168 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 22:44:30,169 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 22:44:30,170 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 22:44:30,170 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 22:44:30,171 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 22:44:30,206 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-25 22:44:30,235 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,237 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:30,240 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:30,242 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:30,244 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,246 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:30,248 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:30,250 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:30,250 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:30,256 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:30,257 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:30,257 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:30,298 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 22:44:30,305 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,306 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,306 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,307 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,308 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,309 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,311 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,311 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 22:44:30,312 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,312 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,313 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,313 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,313 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,314 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,314 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,315 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,315 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,316 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,320 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,321 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,349 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,351 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,352 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:44:30,405 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:44:30,432 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_27e2dac7-3f7e-4576-82db-2798d311dd24/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4496,4509] [2022-11-25 22:44:30,439 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_27e2dac7-3f7e-4576-82db-2798d311dd24/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4556,4569] [2022-11-25 22:44:30,474 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:30,485 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,486 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,487 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,488 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,493 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,495 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:30,499 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,500 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:30,500 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,501 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,502 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,503 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,504 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:30,504 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,505 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,505 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,513 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:44:30,514 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:44:30,514 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 22:44:30,518 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 22:44:30,519 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 22:44:30,519 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 22:44:30,542 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 22:44:30,543 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 22:44:30,543 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 22:44:30,544 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 22:44:30,545 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 22:44:30,546 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 22:44:30,576 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 22:44:30,576 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 22:44:30,576 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 22:44:30,577 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 22:44:30,577 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 22:44:30,604 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-25 22:44:30,616 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,618 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:30,619 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:30,620 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:30,622 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,623 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:30,624 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:30,625 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:30,625 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:30,626 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:30,626 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:30,627 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 22:44:30,640 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 22:44:30,646 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,651 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,652 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,652 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,652 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,653 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,653 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,654 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 22:44:30,654 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,654 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,655 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,655 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,655 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,656 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,656 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,657 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,657 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,657 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,666 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,667 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,679 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,682 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,682 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 22:44:30,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:44:31,169 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:44:31,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:44:31 WrapperNode [2022-11-25 22:44:31,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:44:31,171 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:44:31,171 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:44:31,172 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:44:31,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:44:31" (1/1) ... [2022-11-25 22:44:31,308 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:44:31" (1/1) ... [2022-11-25 22:44:31,401 INFO L138 Inliner]: procedures = 717, calls = 1917, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 1014 [2022-11-25 22:44:31,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:44:31,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:44:31,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:44:31,403 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:44:31,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:44:31" (1/1) ... [2022-11-25 22:44:31,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:44:31" (1/1) ... [2022-11-25 22:44:31,431 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:44:31" (1/1) ... [2022-11-25 22:44:31,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:44:31" (1/1) ... [2022-11-25 22:44:31,494 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:44:31" (1/1) ... [2022-11-25 22:44:31,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:44:31" (1/1) ... [2022-11-25 22:44:31,527 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:44:31" (1/1) ... [2022-11-25 22:44:31,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:44:31" (1/1) ... [2022-11-25 22:44:31,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:44:31,564 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:44:31,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:44:31,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:44:31,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:44:31" (1/1) ... [2022-11-25 22:44:31,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:44:31,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:44:31,637 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:44:31,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:44:31,699 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-11-25 22:44:31,699 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-11-25 22:44:31,699 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-11-25 22:44:31,699 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-11-25 22:44:31,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:44:31,700 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-25 22:44:31,700 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-25 22:44:31,700 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-25 22:44:31,700 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-25 22:44:31,700 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-25 22:44:31,701 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-25 22:44:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 22:44:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-25 22:44:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-25 22:44:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-11-25 22:44:31,701 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-11-25 22:44:31,702 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-25 22:44:31,702 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-25 22:44:31,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 22:44:31,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 22:44:31,703 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_node [2022-11-25 22:44:31,708 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_node [2022-11-25 22:44:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-25 22:44:31,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-25 22:44:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 22:44:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:44:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 22:44:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-11-25 22:44:31,709 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-11-25 22:44:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-25 22:44:31,709 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-25 22:44:31,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:44:31,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:44:31,712 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-25 22:44:31,712 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-25 22:44:31,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-25 22:44:31,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-25 22:44:31,713 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-25 22:44:31,713 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-25 22:44:31,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 22:44:31,713 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-11-25 22:44:31,714 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-11-25 22:44:31,714 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-11-25 22:44:31,714 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-11-25 22:44:31,714 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-25 22:44:31,714 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-25 22:44:31,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 22:44:31,715 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 22:44:31,715 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 22:44:31,715 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 22:44:31,715 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-25 22:44:31,715 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-25 22:44:31,715 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2022-11-25 22:44:31,716 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2022-11-25 22:44:31,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:44:31,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 22:44:31,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-25 22:44:31,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 22:44:31,716 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-11-25 22:44:31,717 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-11-25 22:44:31,717 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-25 22:44:31,717 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-25 22:44:31,717 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-25 22:44:31,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-25 22:44:31,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-25 22:44:31,719 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-25 22:44:31,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-25 22:44:31,719 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-11-25 22:44:31,719 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-11-25 22:44:31,719 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2022-11-25 22:44:31,719 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2022-11-25 22:44:32,347 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:44:32,350 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:44:38,691 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:44:38,703 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:44:38,703 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-25 22:44:38,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:44:38 BoogieIcfgContainer [2022-11-25 22:44:38,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:44:38,709 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:44:38,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:44:38,713 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:44:38,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:44:27" (1/3) ... [2022-11-25 22:44:38,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f4b4867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:44:38, skipping insertion in model container [2022-11-25 22:44:38,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:44:31" (2/3) ... [2022-11-25 22:44:38,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f4b4867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:44:38, skipping insertion in model container [2022-11-25 22:44:38,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:44:38" (3/3) ... [2022-11-25 22:44:38,717 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_pop_harness.i [2022-11-25 22:44:38,739 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:44:38,740 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 22:44:38,829 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:44:38,842 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;@35c9282, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:44:38,842 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 22:44:38,852 INFO L276 IsEmpty]: Start isEmpty. Operand has 436 states, 251 states have (on average 1.2589641434262948) internal successors, (316), 254 states have internal predecessors, (316), 156 states have call successors, (156), 27 states have call predecessors, (156), 27 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2022-11-25 22:44:38,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-25 22:44:38,917 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:44:38,918 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:44:38,919 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:44:38,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:44:38,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1918255772, now seen corresponding path program 1 times [2022-11-25 22:44:38,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:44:38,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1329839248] [2022-11-25 22:44:38,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:44:38,951 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 22:44:38,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:44:38,959 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:44:38,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:44:40,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:44:40,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 1625 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 22:44:40,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:44:40,413 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-25 22:44:40,413 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:44:40,414 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:44:40,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1329839248] [2022-11-25 22:44:40,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1329839248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:44:40,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:44:40,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:44:40,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752388906] [2022-11-25 22:44:40,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:44:40,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 22:44:40,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:44:40,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 22:44:40,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:44:40,482 INFO L87 Difference]: Start difference. First operand has 436 states, 251 states have (on average 1.2589641434262948) internal successors, (316), 254 states have internal predecessors, (316), 156 states have call successors, (156), 27 states have call predecessors, (156), 27 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-25 22:44:40,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:44:40,643 INFO L93 Difference]: Finished difference Result 859 states and 1367 transitions. [2022-11-25 22:44:40,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 22:44:40,645 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 133 [2022-11-25 22:44:40,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:44:40,667 INFO L225 Difference]: With dead ends: 859 [2022-11-25 22:44:40,668 INFO L226 Difference]: Without dead ends: 429 [2022-11-25 22:44:40,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 132 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 22:44:40,690 INFO L413 NwaCegarLoop]: 617 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, 617 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 22:44:40,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:44:40,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-11-25 22:44:40,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 429. [2022-11-25 22:44:40,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 245 states have (on average 1.2326530612244897) internal successors, (302), 248 states have internal predecessors, (302), 156 states have call successors, (156), 27 states have call predecessors, (156), 26 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2022-11-25 22:44:40,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 612 transitions. [2022-11-25 22:44:40,824 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 612 transitions. Word has length 133 [2022-11-25 22:44:40,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:44:40,826 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 612 transitions. [2022-11-25 22:44:40,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-25 22:44:40,826 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 612 transitions. [2022-11-25 22:44:40,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-25 22:44:40,836 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:44:40,840 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:44:40,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:44:41,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:44:41,055 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:44:41,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:44:41,056 INFO L85 PathProgramCache]: Analyzing trace with hash 49472870, now seen corresponding path program 1 times [2022-11-25 22:44:41,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:44:41,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1389464776] [2022-11-25 22:44:41,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:44:41,061 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 22:44:41,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:44:41,062 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:44:41,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:44:42,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:44:42,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 1625 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:44:42,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:44:42,768 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-25 22:44:42,769 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:44:42,769 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:44:42,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1389464776] [2022-11-25 22:44:42,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1389464776] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:44:42,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:44:42,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:44:42,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000816826] [2022-11-25 22:44:42,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:44:42,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:44:42,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:44:42,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:44:42,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:44:42,774 INFO L87 Difference]: Start difference. First operand 429 states and 612 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-25 22:44:45,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:44:45,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:44:45,816 INFO L93 Difference]: Finished difference Result 824 states and 1193 transitions. [2022-11-25 22:44:45,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:44:45,832 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 133 [2022-11-25 22:44:45,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:44:45,839 INFO L225 Difference]: With dead ends: 824 [2022-11-25 22:44:45,839 INFO L226 Difference]: Without dead ends: 431 [2022-11-25 22:44:45,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:44:45,855 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 35 mSDsluCounter, 1672 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 2259 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-25 22:44:45,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 2259 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2022-11-25 22:44:45,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2022-11-25 22:44:45,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 431. [2022-11-25 22:44:45,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 246 states have (on average 1.2317073170731707) internal successors, (303), 250 states have internal predecessors, (303), 156 states have call successors, (156), 27 states have call predecessors, (156), 27 states have return successors, (168), 154 states have call predecessors, (168), 154 states have call successors, (168) [2022-11-25 22:44:45,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 627 transitions. [2022-11-25 22:44:45,922 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 627 transitions. Word has length 133 [2022-11-25 22:44:45,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:44:45,922 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 627 transitions. [2022-11-25 22:44:45,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-25 22:44:45,939 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 627 transitions. [2022-11-25 22:44:45,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-25 22:44:45,941 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:44:45,942 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:44:46,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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)] Forceful destruction successful, exit code 0 [2022-11-25 22:44:46,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:44:46,143 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:44:46,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:44:46,143 INFO L85 PathProgramCache]: Analyzing trace with hash 339867980, now seen corresponding path program 1 times [2022-11-25 22:44:46,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:44:46,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928363906] [2022-11-25 22:44:46,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:44:46,147 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 22:44:46,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:44:46,148 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:44:46,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 (4)] Waiting until timeout for monitored process [2022-11-25 22:44:47,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:44:47,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 1655 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 22:44:47,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:44:47,838 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-25 22:44:47,841 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:44:47,842 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:44:47,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928363906] [2022-11-25 22:44:47,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1928363906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:44:47,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:44:47,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 22:44:47,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627391935] [2022-11-25 22:44:47,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:44:47,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 22:44:47,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:44:47,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 22:44:47,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 22:44:47,846 INFO L87 Difference]: Start difference. First operand 431 states and 627 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-25 22:44:50,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:44:52,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:44:52,070 INFO L93 Difference]: Finished difference Result 847 states and 1266 transitions. [2022-11-25 22:44:52,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:44:52,072 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 141 [2022-11-25 22:44:52,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:44:52,078 INFO L225 Difference]: With dead ends: 847 [2022-11-25 22:44:52,078 INFO L226 Difference]: Without dead ends: 452 [2022-11-25 22:44:52,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 22:44:52,084 INFO L413 NwaCegarLoop]: 582 mSDtfsCounter, 71 mSDsluCounter, 2747 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 3329 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:44:52,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 3329 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 343 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-11-25 22:44:52,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2022-11-25 22:44:52,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 450. [2022-11-25 22:44:52,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 262 states have (on average 1.2404580152671756) internal successors, (325), 266 states have internal predecessors, (325), 158 states have call successors, (158), 27 states have call predecessors, (158), 28 states have return successors, (187), 157 states have call predecessors, (187), 156 states have call successors, (187) [2022-11-25 22:44:52,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 670 transitions. [2022-11-25 22:44:52,129 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 670 transitions. Word has length 141 [2022-11-25 22:44:52,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:44:52,130 INFO L495 AbstractCegarLoop]: Abstraction has 450 states and 670 transitions. [2022-11-25 22:44:52,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-25 22:44:52,130 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 670 transitions. [2022-11-25 22:44:52,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-25 22:44:52,133 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:44:52,134 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:44:52,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 (4)] Forceful destruction successful, exit code 0 [2022-11-25 22:44:52,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:44:52,354 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:44:52,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:44:52,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1643588180, now seen corresponding path program 1 times [2022-11-25 22:44:52,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:44:52,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2080555691] [2022-11-25 22:44:52,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:44:52,356 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 22:44:52,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:44:52,357 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:44:52,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 (5)] Waiting until timeout for monitored process [2022-11-25 22:44:53,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:44:53,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 1767 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 22:44:54,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:44:54,292 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-25 22:44:54,293 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:44:54,293 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:44:54,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2080555691] [2022-11-25 22:44:54,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2080555691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:44:54,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:44:54,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 22:44:54,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482545192] [2022-11-25 22:44:54,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:44:54,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:44:54,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:44:54,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:44:54,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:44:54,301 INFO L87 Difference]: Start difference. First operand 450 states and 670 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-25 22:44:57,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:44:58,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:44:58,155 INFO L93 Difference]: Finished difference Result 872 states and 1341 transitions. [2022-11-25 22:44:58,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:44:58,157 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 156 [2022-11-25 22:44:58,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:44:58,163 INFO L225 Difference]: With dead ends: 872 [2022-11-25 22:44:58,164 INFO L226 Difference]: Without dead ends: 458 [2022-11-25 22:44:58,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-25 22:44:58,169 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 58 mSDsluCounter, 2198 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 2779 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:44:58,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 2779 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 268 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-11-25 22:44:58,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-11-25 22:44:58,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 450. [2022-11-25 22:44:58,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 262 states have (on average 1.2404580152671756) internal successors, (325), 266 states have internal predecessors, (325), 158 states have call successors, (158), 27 states have call predecessors, (158), 28 states have return successors, (187), 157 states have call predecessors, (187), 156 states have call successors, (187) [2022-11-25 22:44:58,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 670 transitions. [2022-11-25 22:44:58,222 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 670 transitions. Word has length 156 [2022-11-25 22:44:58,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:44:58,225 INFO L495 AbstractCegarLoop]: Abstraction has 450 states and 670 transitions. [2022-11-25 22:44:58,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-25 22:44:58,225 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 670 transitions. [2022-11-25 22:44:58,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-25 22:44:58,228 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:44:58,229 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:44:58,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 (5)] Forceful destruction successful, exit code 0 [2022-11-25 22:44:58,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:44:58,447 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:44:58,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:44:58,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1003251797, now seen corresponding path program 1 times [2022-11-25 22:44:58,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:44:58,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [502135096] [2022-11-25 22:44:58,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:44:58,451 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 22:44:58,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:44:58,452 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:44:58,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:44:59,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:45:00,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 1815 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 22:45:00,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:45:00,564 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-11-25 22:45:00,564 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:45:00,564 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:45:00,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [502135096] [2022-11-25 22:45:00,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [502135096] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:45:00,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:45:00,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 22:45:00,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186280722] [2022-11-25 22:45:00,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:45:00,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 22:45:00,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:45:00,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 22:45:00,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 22:45:00,568 INFO L87 Difference]: Start difference. First operand 450 states and 670 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2022-11-25 22:45:04,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:45:06,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:45:06,027 INFO L93 Difference]: Finished difference Result 894 states and 1360 transitions. [2022-11-25 22:45:06,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 22:45:06,029 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) Word has length 172 [2022-11-25 22:45:06,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:45:06,034 INFO L225 Difference]: With dead ends: 894 [2022-11-25 22:45:06,034 INFO L226 Difference]: Without dead ends: 480 [2022-11-25 22:45:06,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-25 22:45:06,039 INFO L413 NwaCegarLoop]: 566 mSDtfsCounter, 130 mSDsluCounter, 3215 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 3781 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:45:06,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 3781 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 587 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-11-25 22:45:06,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-11-25 22:45:06,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 462. [2022-11-25 22:45:06,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 272 states have (on average 1.2463235294117647) internal successors, (339), 276 states have internal predecessors, (339), 159 states have call successors, (159), 28 states have call predecessors, (159), 29 states have return successors, (188), 158 states have call predecessors, (188), 157 states have call successors, (188) [2022-11-25 22:45:06,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 686 transitions. [2022-11-25 22:45:06,074 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 686 transitions. Word has length 172 [2022-11-25 22:45:06,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:45:06,075 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 686 transitions. [2022-11-25 22:45:06,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2022-11-25 22:45:06,076 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 686 transitions. [2022-11-25 22:45:06,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-25 22:45:06,079 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:45:06,079 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:45:06,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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)] Ended with exit code 0 [2022-11-25 22:45:06,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:45:06,303 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:45:06,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:45:06,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1942699821, now seen corresponding path program 2 times [2022-11-25 22:45:06,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:45:06,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2135999022] [2022-11-25 22:45:06,306 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 22:45:06,306 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 22:45:06,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:45:06,307 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:45:06,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 (7)] Waiting until timeout for monitored process [2022-11-25 22:45:10,554 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 22:45:10,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 22:45:10,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 1927 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 22:45:10,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:45:11,612 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-25 22:45:11,612 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:45:11,613 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:45:11,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2135999022] [2022-11-25 22:45:11,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2135999022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:45:11,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:45:11,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 22:45:11,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302831155] [2022-11-25 22:45:11,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:45:11,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:45:11,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:45:11,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:45:11,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:45:11,616 INFO L87 Difference]: Start difference. First operand 462 states and 686 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 22:45:16,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:45:18,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:45:20,996 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 [] [2022-11-25 22:45:25,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:45:25,071 INFO L93 Difference]: Finished difference Result 924 states and 1434 transitions. [2022-11-25 22:45:25,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 22:45:25,075 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 187 [2022-11-25 22:45:25,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:45:25,080 INFO L225 Difference]: With dead ends: 924 [2022-11-25 22:45:25,080 INFO L226 Difference]: Without dead ends: 498 [2022-11-25 22:45:25,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-25 22:45:25,085 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 23 mSDsluCounter, 2267 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2890 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:45:25,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2890 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 258 Invalid, 3 Unknown, 0 Unchecked, 12.8s Time] [2022-11-25 22:45:25,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2022-11-25 22:45:25,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 470. [2022-11-25 22:45:25,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 280 states have (on average 1.2464285714285714) internal successors, (349), 284 states have internal predecessors, (349), 159 states have call successors, (159), 28 states have call predecessors, (159), 29 states have return successors, (188), 158 states have call predecessors, (188), 157 states have call successors, (188) [2022-11-25 22:45:25,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 696 transitions. [2022-11-25 22:45:25,116 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 696 transitions. Word has length 187 [2022-11-25 22:45:25,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:45:25,117 INFO L495 AbstractCegarLoop]: Abstraction has 470 states and 696 transitions. [2022-11-25 22:45:25,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 22:45:25,117 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 696 transitions. [2022-11-25 22:45:25,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-25 22:45:25,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:45:25,120 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:45:25,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 (7)] Forceful destruction successful, exit code 0 [2022-11-25 22:45:25,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:45:25,335 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:45:25,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:45:25,336 INFO L85 PathProgramCache]: Analyzing trace with hash -375941871, now seen corresponding path program 1 times [2022-11-25 22:45:25,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:45:25,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1587105246] [2022-11-25 22:45:25,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:45:25,338 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 22:45:25,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:45:25,339 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:45:25,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:45:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:45:27,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 1925 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 22:45:27,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:45:28,274 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-25 22:45:28,275 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:45:28,275 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:45:28,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1587105246] [2022-11-25 22:45:28,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1587105246] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:45:28,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:45:28,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 22:45:28,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402755739] [2022-11-25 22:45:28,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:45:28,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 22:45:28,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:45:28,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 22:45:28,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 22:45:28,279 INFO L87 Difference]: Start difference. First operand 470 states and 696 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 22:45:33,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:45:35,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:45:37,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:45:40,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:45:40,920 INFO L93 Difference]: Finished difference Result 934 states and 1444 transitions. [2022-11-25 22:45:40,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 22:45:40,924 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 187 [2022-11-25 22:45:40,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:45:40,929 INFO L225 Difference]: With dead ends: 934 [2022-11-25 22:45:40,930 INFO L226 Difference]: Without dead ends: 500 [2022-11-25 22:45:40,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-25 22:45:40,935 INFO L413 NwaCegarLoop]: 622 mSDtfsCounter, 20 mSDsluCounter, 2880 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 3502 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:45:40,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 3502 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 276 Invalid, 3 Unknown, 0 Unchecked, 11.6s Time] [2022-11-25 22:45:40,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2022-11-25 22:45:40,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 474. [2022-11-25 22:45:40,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 284 states have (on average 1.2429577464788732) internal successors, (353), 288 states have internal predecessors, (353), 159 states have call successors, (159), 28 states have call predecessors, (159), 29 states have return successors, (188), 158 states have call predecessors, (188), 157 states have call successors, (188) [2022-11-25 22:45:40,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 700 transitions. [2022-11-25 22:45:40,969 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 700 transitions. Word has length 187 [2022-11-25 22:45:40,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:45:40,970 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 700 transitions. [2022-11-25 22:45:40,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 22:45:40,970 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 700 transitions. [2022-11-25 22:45:40,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-25 22:45:40,973 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:45:40,974 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:45:41,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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)] Forceful destruction successful, exit code 0 [2022-11-25 22:45:41,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:45:41,199 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:45:41,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:45:41,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1518444337, now seen corresponding path program 1 times [2022-11-25 22:45:41,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:45:41,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [299099818] [2022-11-25 22:45:41,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:45:41,203 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 22:45:41,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:45:41,207 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:45:41,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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)] Waiting until timeout for monitored process [2022-11-25 22:45:42,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:45:43,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 1922 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-25 22:45:43,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:45:46,888 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_25| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_1| (_ BitVec 64))) (not (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_25|) (bvadd (_ bv80 64) |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_1|)) (_ bv0 64)))) (exists ((|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_25| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_1| (_ BitVec 64))) (not (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_25|) (bvadd (_ bv80 64) |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_1|)) (_ bv0 64))))) is different from true [2022-11-25 22:45:49,345 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_26| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_2| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_26|) (bvadd (_ bv80 64) |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_2|))))) (exists ((|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_26| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_2| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_26|) (bvadd (_ bv80 64) |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_2|)))))) is different from true [2022-11-25 22:45:49,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-11-25 22:45:49,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-25 22:45:50,143 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-25 22:45:50,144 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:45:50,144 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:45:50,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [299099818] [2022-11-25 22:45:50,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [299099818] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:45:50,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:45:50,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 22:45:50,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104616589] [2022-11-25 22:45:50,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:45:50,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 22:45:50,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:45:50,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 22:45:50,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=74, Unknown=2, NotChecked=34, Total=132 [2022-11-25 22:45:50,148 INFO L87 Difference]: Start difference. First operand 474 states and 700 transitions. Second operand has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 12 states have internal predecessors, (86), 6 states have call successors, (25), 4 states have call predecessors, (25), 5 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2022-11-25 22:45:56,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:46:03,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:46:03,929 INFO L93 Difference]: Finished difference Result 946 states and 1459 transitions. [2022-11-25 22:46:03,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 22:46:03,931 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 12 states have internal predecessors, (86), 6 states have call successors, (25), 4 states have call predecessors, (25), 5 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) Word has length 187 [2022-11-25 22:46:03,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:46:03,937 INFO L225 Difference]: With dead ends: 946 [2022-11-25 22:46:03,939 INFO L226 Difference]: Without dead ends: 535 [2022-11-25 22:46:03,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 174 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=68, Invalid=210, Unknown=2, NotChecked=62, Total=342 [2022-11-25 22:46:03,944 INFO L413 NwaCegarLoop]: 591 mSDtfsCounter, 73 mSDsluCounter, 4249 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 4840 SdHoareTripleChecker+Invalid, 2293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 1399 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:46:03,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 4840 Invalid, 2293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 883 Invalid, 1 Unknown, 1399 Unchecked, 12.1s Time] [2022-11-25 22:46:03,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-11-25 22:46:03,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 504. [2022-11-25 22:46:03,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 307 states have (on average 1.237785016286645) internal successors, (380), 311 states have internal predecessors, (380), 162 states have call successors, (162), 31 states have call predecessors, (162), 33 states have return successors, (207), 162 states have call predecessors, (207), 160 states have call successors, (207) [2022-11-25 22:46:03,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 749 transitions. [2022-11-25 22:46:03,993 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 749 transitions. Word has length 187 [2022-11-25 22:46:03,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:46:03,994 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 749 transitions. [2022-11-25 22:46:03,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 12 states have internal predecessors, (86), 6 states have call successors, (25), 4 states have call predecessors, (25), 5 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2022-11-25 22:46:03,995 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 749 transitions. [2022-11-25 22:46:03,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-25 22:46:03,999 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:46:03,999 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:46:04,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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)] Forceful destruction successful, exit code 0 [2022-11-25 22:46:04,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:46:04,219 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:46:04,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:46:04,220 INFO L85 PathProgramCache]: Analyzing trace with hash 473136529, now seen corresponding path program 1 times [2022-11-25 22:46:04,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:46:04,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [903221130] [2022-11-25 22:46:04,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:46:04,222 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 22:46:04,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:46:04,223 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:46:04,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:46:06,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:46:06,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 1924 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:46:06,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:46:06,302 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-25 22:46:06,302 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:46:06,302 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:46:06,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [903221130] [2022-11-25 22:46:06,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [903221130] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:46:06,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:46:06,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:46:06,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650841950] [2022-11-25 22:46:06,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:46:06,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:46:06,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:46:06,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:46:06,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:46:06,306 INFO L87 Difference]: Start difference. First operand 504 states and 749 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 22:46:06,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:46:06,574 INFO L93 Difference]: Finished difference Result 974 states and 1516 transitions. [2022-11-25 22:46:06,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:46:06,575 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 187 [2022-11-25 22:46:06,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:46:06,580 INFO L225 Difference]: With dead ends: 974 [2022-11-25 22:46:06,581 INFO L226 Difference]: Without dead ends: 524 [2022-11-25 22:46:06,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:46:06,585 INFO L413 NwaCegarLoop]: 636 mSDtfsCounter, 8 mSDsluCounter, 1882 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2518 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:46:06,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2518 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:46:06,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2022-11-25 22:46:06,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 512. [2022-11-25 22:46:06,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 315 states have (on average 1.234920634920635) internal successors, (389), 319 states have internal predecessors, (389), 162 states have call successors, (162), 31 states have call predecessors, (162), 33 states have return successors, (207), 162 states have call predecessors, (207), 160 states have call successors, (207) [2022-11-25 22:46:06,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 758 transitions. [2022-11-25 22:46:06,627 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 758 transitions. Word has length 187 [2022-11-25 22:46:06,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:46:06,628 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 758 transitions. [2022-11-25 22:46:06,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 22:46:06,628 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 758 transitions. [2022-11-25 22:46:06,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-11-25 22:46:06,632 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:46:06,632 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:46:06,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:46:06,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:46:06,855 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:46:06,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:46:06,856 INFO L85 PathProgramCache]: Analyzing trace with hash -755362783, now seen corresponding path program 1 times [2022-11-25 22:46:06,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:46:06,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1483053716] [2022-11-25 22:46:06,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:46:06,859 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 22:46:06,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:46:06,860 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:46:06,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 (11)] Waiting until timeout for monitored process [2022-11-25 22:46:08,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:46:08,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 1923 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 22:46:08,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:46:09,482 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-11-25 22:46:09,483 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:46:09,483 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:46:09,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1483053716] [2022-11-25 22:46:09,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1483053716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:46:09,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:46:09,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 22:46:09,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981518783] [2022-11-25 22:46:09,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:46:09,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 22:46:09,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:46:09,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 22:46:09,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 22:46:09,486 INFO L87 Difference]: Start difference. First operand 512 states and 758 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 22:46:11,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:46:11,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:46:11,860 INFO L93 Difference]: Finished difference Result 956 states and 1436 transitions. [2022-11-25 22:46:11,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:46:11,862 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) Word has length 188 [2022-11-25 22:46:11,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:46:11,867 INFO L225 Difference]: With dead ends: 956 [2022-11-25 22:46:11,868 INFO L226 Difference]: Without dead ends: 527 [2022-11-25 22:46:11,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 22:46:11,872 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 7 mSDsluCounter, 3037 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 3649 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:46:11,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 3649 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-11-25 22:46:11,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2022-11-25 22:46:11,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 525. [2022-11-25 22:46:11,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 325 states have (on average 1.236923076923077) internal successors, (402), 329 states have internal predecessors, (402), 164 states have call successors, (164), 31 states have call predecessors, (164), 34 states have return successors, (214), 165 states have call predecessors, (214), 162 states have call successors, (214) [2022-11-25 22:46:11,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 780 transitions. [2022-11-25 22:46:11,913 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 780 transitions. Word has length 188 [2022-11-25 22:46:11,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:46:11,914 INFO L495 AbstractCegarLoop]: Abstraction has 525 states and 780 transitions. [2022-11-25 22:46:11,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 22:46:11,914 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 780 transitions. [2022-11-25 22:46:11,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-11-25 22:46:11,917 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:46:11,917 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:46:11,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 (11)] Forceful destruction successful, exit code 0 [2022-11-25 22:46:12,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:46:12,131 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:46:12,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:46:12,132 INFO L85 PathProgramCache]: Analyzing trace with hash 120656223, now seen corresponding path program 1 times [2022-11-25 22:46:12,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:46:12,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1161565432] [2022-11-25 22:46:12,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:46:12,134 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 22:46:12,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:46:12,135 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:46:12,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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)] Waiting until timeout for monitored process [2022-11-25 22:46:14,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:46:14,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 1921 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 22:46:14,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:46:15,043 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-25 22:46:15,044 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:46:15,044 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:46:15,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1161565432] [2022-11-25 22:46:15,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1161565432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:46:15,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:46:15,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 22:46:15,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998274848] [2022-11-25 22:46:15,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:46:15,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 22:46:15,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:46:15,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 22:46:15,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 22:46:15,047 INFO L87 Difference]: Start difference. First operand 525 states and 780 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 8 states have internal predecessors, (87), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-25 22:46:17,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:46:19,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:46:19,573 INFO L93 Difference]: Finished difference Result 954 states and 1432 transitions. [2022-11-25 22:46:19,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 22:46:19,575 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 8 states have internal predecessors, (87), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 188 [2022-11-25 22:46:19,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:46:19,580 INFO L225 Difference]: With dead ends: 954 [2022-11-25 22:46:19,580 INFO L226 Difference]: Without dead ends: 510 [2022-11-25 22:46:19,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-25 22:46:19,585 INFO L413 NwaCegarLoop]: 574 mSDtfsCounter, 8 mSDsluCounter, 3920 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4494 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:46:19,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 4494 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 408 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-11-25 22:46:19,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2022-11-25 22:46:19,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 510. [2022-11-25 22:46:19,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 313 states have (on average 1.2300319488817892) internal successors, (385), 318 states have internal predecessors, (385), 162 states have call successors, (162), 31 states have call predecessors, (162), 33 states have return successors, (208), 161 states have call predecessors, (208), 160 states have call successors, (208) [2022-11-25 22:46:19,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 755 transitions. [2022-11-25 22:46:19,626 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 755 transitions. Word has length 188 [2022-11-25 22:46:19,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:46:19,627 INFO L495 AbstractCegarLoop]: Abstraction has 510 states and 755 transitions. [2022-11-25 22:46:19,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 8 states have internal predecessors, (87), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-25 22:46:19,628 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 755 transitions. [2022-11-25 22:46:19,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-11-25 22:46:19,630 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:46:19,630 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:46:19,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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)] Forceful destruction successful, exit code 0 [2022-11-25 22:46:19,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:46:19,855 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:46:19,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:46:19,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1113187243, now seen corresponding path program 1 times [2022-11-25 22:46:19,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:46:19,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1635603523] [2022-11-25 22:46:19,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:46:19,858 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 22:46:19,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:46:19,859 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:46:19,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:46:21,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:46:21,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 1946 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-25 22:46:21,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:46:25,805 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_27| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_3| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_27|) (bvadd (_ bv80 64) |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_3|))))) (exists ((|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_27| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_3| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_27|) (bvadd (_ bv80 64) |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_3|)))))) is different from true [2022-11-25 22:46:28,219 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_4| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_28| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_28|) (bvadd (_ bv80 64) |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_4|))))) (exists ((|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_4| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_28| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_28|) (bvadd (_ bv80 64) |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_4|)))))) is different from true [2022-11-25 22:46:29,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-11-25 22:46:29,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-25 22:46:29,187 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 4 not checked. [2022-11-25 22:46:29,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:46:33,571 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 22:46:33,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2022-11-25 22:46:33,681 INFO L321 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-11-25 22:46:33,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 19 [2022-11-25 22:46:33,986 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-25 22:46:33,986 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:46:33,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1635603523] [2022-11-25 22:46:33,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1635603523] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:46:33,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1745843601] [2022-11-25 22:46:33,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:46:33,987 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:46:33,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:46:33,988 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:46:33,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2022-11-25 22:46:35,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:46:35,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 1946 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 22:46:35,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:46:36,401 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-11-25 22:46:36,401 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:46:36,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1745843601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:46:36,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:46:36,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12, 10] total 18 [2022-11-25 22:46:36,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549942656] [2022-11-25 22:46:36,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:46:36,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:46:36,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:46:36,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:46:36,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=207, Unknown=2, NotChecked=58, Total=306 [2022-11-25 22:46:36,408 INFO L87 Difference]: Start difference. First operand 510 states and 755 transitions. Second operand has 6 states, 5 states have (on average 17.4) internal successors, (87), 6 states have internal predecessors, (87), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-25 22:46:39,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:46:40,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:46:40,120 INFO L93 Difference]: Finished difference Result 938 states and 1415 transitions. [2022-11-25 22:46:40,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:46:40,121 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 6 states have internal predecessors, (87), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) Word has length 198 [2022-11-25 22:46:40,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:46:40,126 INFO L225 Difference]: With dead ends: 938 [2022-11-25 22:46:40,127 INFO L226 Difference]: Without dead ends: 512 [2022-11-25 22:46:40,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 574 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=47, Invalid=265, Unknown=2, NotChecked=66, Total=380 [2022-11-25 22:46:40,131 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 67 mSDsluCounter, 2178 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 24 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 2758 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:46:40,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 2758 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 176 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-11-25 22:46:40,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2022-11-25 22:46:40,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 512. [2022-11-25 22:46:40,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 314 states have (on average 1.2292993630573248) internal successors, (386), 320 states have internal predecessors, (386), 162 states have call successors, (162), 31 states have call predecessors, (162), 34 states have return successors, (219), 161 states have call predecessors, (219), 160 states have call successors, (219) [2022-11-25 22:46:40,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 767 transitions. [2022-11-25 22:46:40,175 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 767 transitions. Word has length 198 [2022-11-25 22:46:40,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:46:40,176 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 767 transitions. [2022-11-25 22:46:40,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 6 states have internal predecessors, (87), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-25 22:46:40,177 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 767 transitions. [2022-11-25 22:46:40,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-11-25 22:46:40,179 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:46:40,179 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:46:40,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:46:40,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2022-11-25 22:46:40,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt [2022-11-25 22:46:40,604 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:46:40,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:46:40,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1296624131, now seen corresponding path program 1 times [2022-11-25 22:46:40,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:46:40,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [337266172] [2022-11-25 22:46:40,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:46:40,607 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 22:46:40,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:46:40,608 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:46:40,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:46:42,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:46:42,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 2088 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-25 22:46:42,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:46:46,662 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_8| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_41| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_41|) (bvadd (_ bv80 64) |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_8|))))) (exists ((|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_8| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_41| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_41|) (bvadd (_ bv80 64) |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_8|)))))) is different from true [2022-11-25 22:46:49,064 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_42| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_9| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_42|) (bvadd (_ bv80 64) |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_9|))))) (exists ((|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_42| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_9| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_42|) (bvadd (_ bv80 64) |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_9|)))))) is different from true [2022-11-25 22:46:49,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-11-25 22:46:49,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-25 22:46:50,043 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 4 not checked. [2022-11-25 22:46:50,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:46:54,268 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 22:46:54,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2022-11-25 22:46:54,376 INFO L321 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-11-25 22:46:54,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 19 [2022-11-25 22:46:54,666 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2022-11-25 22:46:54,666 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:46:54,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [337266172] [2022-11-25 22:46:54,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [337266172] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:46:54,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1311495086] [2022-11-25 22:46:54,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:46:54,667 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:46:54,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:46:54,668 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:46:54,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2022-11-25 22:46:56,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:46:56,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 2088 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 22:46:56,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:46:57,384 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-11-25 22:46:57,384 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:46:57,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1311495086] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:46:57,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:46:57,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12, 10] total 19 [2022-11-25 22:46:57,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302407051] [2022-11-25 22:46:57,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:46:57,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 22:46:57,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:46:57,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 22:46:57,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=236, Unknown=2, NotChecked=62, Total=342 [2022-11-25 22:46:57,388 INFO L87 Difference]: Start difference. First operand 512 states and 767 transitions. Second operand has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 5 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) [2022-11-25 22:47:00,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:47:02,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:47:02,148 INFO L93 Difference]: Finished difference Result 943 states and 1440 transitions. [2022-11-25 22:47:02,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 22:47:02,150 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 5 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) Word has length 221 [2022-11-25 22:47:02,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:47:02,156 INFO L225 Difference]: With dead ends: 943 [2022-11-25 22:47:02,156 INFO L226 Difference]: Without dead ends: 515 [2022-11-25 22:47:02,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 667 GetRequests, 644 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=61, Invalid=365, Unknown=2, NotChecked=78, Total=506 [2022-11-25 22:47:02,161 INFO L413 NwaCegarLoop]: 574 mSDtfsCounter, 90 mSDsluCounter, 2687 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 3261 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:47:02,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 3261 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 328 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-11-25 22:47:02,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2022-11-25 22:47:02,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 513. [2022-11-25 22:47:02,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 315 states have (on average 1.2285714285714286) internal successors, (387), 321 states have internal predecessors, (387), 162 states have call successors, (162), 31 states have call predecessors, (162), 34 states have return successors, (219), 161 states have call predecessors, (219), 160 states have call successors, (219) [2022-11-25 22:47:02,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 768 transitions. [2022-11-25 22:47:02,277 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 768 transitions. Word has length 221 [2022-11-25 22:47:02,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:47:02,278 INFO L495 AbstractCegarLoop]: Abstraction has 513 states and 768 transitions. [2022-11-25 22:47:02,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 5 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) [2022-11-25 22:47:02,278 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 768 transitions. [2022-11-25 22:47:02,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-11-25 22:47:02,280 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:47:02,281 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:47:02,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:47:02,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2022-11-25 22:47:02,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt [2022-11-25 22:47:02,692 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:47:02,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:47:02,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1045098624, now seen corresponding path program 1 times [2022-11-25 22:47:02,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:47:02,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [672735684] [2022-11-25 22:47:02,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:47:02,696 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 22:47:02,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:47:02,697 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:47:02,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 (17)] Waiting until timeout for monitored process [2022-11-25 22:47:04,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:47:04,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 2019 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-25 22:47:04,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:47:08,550 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_13| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_55| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_55|) (bvadd |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_13| (_ bv80 64)))))) (exists ((|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_13| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_55| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_55|) (bvadd |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_13| (_ bv80 64))))))) is different from true [2022-11-25 22:47:10,926 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_14| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_56| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_56|) (bvadd |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_14| (_ bv80 64)))))) (exists ((|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_14| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_56| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_56|) (bvadd |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.offset_BEFORE_CALL_14| (_ bv80 64))))))) is different from true [2022-11-25 22:47:11,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-11-25 22:47:11,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-25 22:47:11,998 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 4 not checked. [2022-11-25 22:47:11,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:47:16,219 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 22:47:16,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2022-11-25 22:47:16,333 INFO L321 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-11-25 22:47:16,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 19 [2022-11-25 22:47:16,638 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2022-11-25 22:47:16,639 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:47:16,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [672735684] [2022-11-25 22:47:16,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [672735684] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:47:16,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1525843075] [2022-11-25 22:47:16,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:47:16,640 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:47:16,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:47:16,644 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:47:16,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2022-11-25 22:47:18,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:47:18,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 2019 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 22:47:18,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:47:19,742 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 153 proven. 3 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2022-11-25 22:47:19,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:47:21,171 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2022-11-25 22:47:21,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1525843075] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:47:21,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195199854] [2022-11-25 22:47:21,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:47:21,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:47:21,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:47:21,177 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:47:21,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-25 22:47:22,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:47:23,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 2019 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 22:47:23,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:47:23,543 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 153 proven. 3 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2022-11-25 22:47:23,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:47:24,604 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2022-11-25 22:47:24,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195199854] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:47:24,604 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-25 22:47:24,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 8, 8, 8, 8] total 22 [2022-11-25 22:47:24,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898761478] [2022-11-25 22:47:24,606 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-25 22:47:24,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-25 22:47:24,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:47:24,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-25 22:47:24,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=334, Unknown=2, NotChecked=74, Total=462 [2022-11-25 22:47:24,609 INFO L87 Difference]: Start difference. First operand 513 states and 768 transitions. Second operand has 22 states, 21 states have (on average 8.476190476190476) internal successors, (178), 22 states have internal predecessors, (178), 11 states have call successors, (57), 4 states have call predecessors, (57), 7 states have return successors, (55), 8 states have call predecessors, (55), 11 states have call successors, (55) [2022-11-25 22:47:33,595 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 [] [2022-11-25 22:47:35,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:47:41,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:47:43,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:47:45,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:47:47,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:47:49,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:47:51,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:47:53,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:47:55,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:47:57,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:47:59,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:48:01,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:48:03,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:48:05,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:48:07,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:48:09,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:48:12,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:48:14,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:48:16,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:48:18,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:48:21,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:48:23,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:48:35,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:48:35,358 INFO L93 Difference]: Finished difference Result 986 states and 1529 transitions. [2022-11-25 22:48:35,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-25 22:48:35,360 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 8.476190476190476) internal successors, (178), 22 states have internal predecessors, (178), 11 states have call successors, (57), 4 states have call predecessors, (57), 7 states have return successors, (55), 8 states have call predecessors, (55), 11 states have call successors, (55) Word has length 222 [2022-11-25 22:48:35,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:48:35,364 INFO L225 Difference]: With dead ends: 986 [2022-11-25 22:48:35,365 INFO L226 Difference]: Without dead ends: 552 [2022-11-25 22:48:35,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1360 GetRequests, 1316 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=290, Invalid=1438, Unknown=2, NotChecked=162, Total=1892 [2022-11-25 22:48:35,369 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 311 mSDsluCounter, 7138 mSDsCounter, 0 mSdLazyCounter, 1872 mSolverCounterSat, 78 mSolverCounterUnsat, 23 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 7713 SdHoareTripleChecker+Invalid, 3650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1872 IncrementalHoareTripleChecker+Invalid, 23 IncrementalHoareTripleChecker+Unknown, 1677 IncrementalHoareTripleChecker+Unchecked, 64.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:48:35,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 7713 Invalid, 3650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1872 Invalid, 23 Unknown, 1677 Unchecked, 64.8s Time] [2022-11-25 22:48:35,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2022-11-25 22:48:35,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 526. [2022-11-25 22:48:35,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 324 states have (on average 1.2222222222222223) internal successors, (396), 329 states have internal predecessors, (396), 164 states have call successors, (164), 33 states have call predecessors, (164), 36 states have return successors, (207), 164 states have call predecessors, (207), 162 states have call successors, (207) [2022-11-25 22:48:35,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 767 transitions. [2022-11-25 22:48:35,406 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 767 transitions. Word has length 222 [2022-11-25 22:48:35,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:48:35,407 INFO L495 AbstractCegarLoop]: Abstraction has 526 states and 767 transitions. [2022-11-25 22:48:35,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 8.476190476190476) internal successors, (178), 22 states have internal predecessors, (178), 11 states have call successors, (57), 4 states have call predecessors, (57), 7 states have return successors, (55), 8 states have call predecessors, (55), 11 states have call successors, (55) [2022-11-25 22:48:35,407 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 767 transitions. [2022-11-25 22:48:35,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-11-25 22:48:35,409 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:48:35,409 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:48:35,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2022-11-25 22:48:35,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-25 22:48:35,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 (17)] Forceful destruction successful, exit code 0 [2022-11-25 22:48:36,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:48:36,023 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:48:36,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:48:36,024 INFO L85 PathProgramCache]: Analyzing trace with hash -989243332, now seen corresponding path program 1 times [2022-11-25 22:48:36,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:48:36,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1564627959] [2022-11-25 22:48:36,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:48:36,026 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 22:48:36,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:48:36,027 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:48:36,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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)] Waiting until timeout for monitored process [2022-11-25 22:48:38,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:48:39,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 2244 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 22:48:39,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:48:39,756 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-11-25 22:48:39,756 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:48:39,757 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:48:39,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1564627959] [2022-11-25 22:48:39,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1564627959] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:48:39,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:48:39,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 22:48:39,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292727227] [2022-11-25 22:48:39,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:48:39,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 22:48:39,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:48:39,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 22:48:39,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 22:48:39,760 INFO L87 Difference]: Start difference. First operand 526 states and 767 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) [2022-11-25 22:48:42,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:48:44,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:48:44,566 INFO L93 Difference]: Finished difference Result 958 states and 1420 transitions. [2022-11-25 22:48:44,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 22:48:44,567 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) Word has length 253 [2022-11-25 22:48:44,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:48:44,572 INFO L225 Difference]: With dead ends: 958 [2022-11-25 22:48:44,573 INFO L226 Difference]: Without dead ends: 538 [2022-11-25 22:48:44,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-25 22:48:44,576 INFO L413 NwaCegarLoop]: 574 mSDtfsCounter, 63 mSDsluCounter, 3280 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 3854 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-25 22:48:44,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 3854 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 337 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-11-25 22:48:44,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2022-11-25 22:48:44,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2022-11-25 22:48:44,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 330 states have (on average 1.2212121212121212) internal successors, (403), 335 states have internal predecessors, (403), 169 states have call successors, (169), 34 states have call predecessors, (169), 37 states have return successors, (212), 169 states have call predecessors, (212), 167 states have call successors, (212) [2022-11-25 22:48:44,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 784 transitions. [2022-11-25 22:48:44,618 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 784 transitions. Word has length 253 [2022-11-25 22:48:44,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:48:44,619 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 784 transitions. [2022-11-25 22:48:44,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) [2022-11-25 22:48:44,619 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 784 transitions. [2022-11-25 22:48:44,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-11-25 22:48:44,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:48:44,622 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:48:44,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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)] Forceful destruction successful, exit code 0 [2022-11-25 22:48:44,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:48:44,847 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:48:44,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:48:44,848 INFO L85 PathProgramCache]: Analyzing trace with hash 104648524, now seen corresponding path program 1 times [2022-11-25 22:48:44,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:48:44,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130490754] [2022-11-25 22:48:44,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:48:44,850 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 22:48:44,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:48:44,851 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:48:44,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 (21)] Waiting until timeout for monitored process [2022-11-25 22:48:52,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:48:52,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 2468 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-25 22:48:52,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:48:54,468 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 22:48:54,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 65 treesize of output 17 [2022-11-25 22:48:54,777 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-11-25 22:48:54,777 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:48:54,777 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:48:54,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [130490754] [2022-11-25 22:48:54,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [130490754] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:48:54,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:48:54,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 22:48:54,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949589110] [2022-11-25 22:48:54,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:48:54,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 22:48:54,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:48:54,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 22:48:54,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-11-25 22:48:54,781 INFO L87 Difference]: Start difference. First operand 538 states and 784 transitions. Second operand has 12 states, 11 states have (on average 10.181818181818182) internal successors, (112), 12 states have internal predecessors, (112), 7 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) [2022-11-25 22:49:04,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:49:14,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:49:14,402 INFO L93 Difference]: Finished difference Result 1090 states and 1679 transitions. [2022-11-25 22:49:14,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 22:49:14,405 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.181818181818182) internal successors, (112), 12 states have internal predecessors, (112), 7 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) Word has length 283 [2022-11-25 22:49:14,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:49:14,409 INFO L225 Difference]: With dead ends: 1090 [2022-11-25 22:49:14,409 INFO L226 Difference]: Without dead ends: 588 [2022-11-25 22:49:14,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2022-11-25 22:49:14,412 INFO L413 NwaCegarLoop]: 572 mSDtfsCounter, 113 mSDsluCounter, 4746 mSDsCounter, 0 mSdLazyCounter, 1310 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 5318 SdHoareTripleChecker+Invalid, 1324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1310 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:49:14,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 5318 Invalid, 1324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1310 Invalid, 1 Unknown, 0 Unchecked, 17.8s Time] [2022-11-25 22:49:14,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2022-11-25 22:49:14,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 548. [2022-11-25 22:49:14,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 338 states have (on average 1.2159763313609468) internal successors, (411), 343 states have internal predecessors, (411), 169 states have call successors, (169), 34 states have call predecessors, (169), 39 states have return successors, (231), 171 states have call predecessors, (231), 167 states have call successors, (231) [2022-11-25 22:49:14,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 811 transitions. [2022-11-25 22:49:14,452 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 811 transitions. Word has length 283 [2022-11-25 22:49:14,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:49:14,453 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 811 transitions. [2022-11-25 22:49:14,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.181818181818182) internal successors, (112), 12 states have internal predecessors, (112), 7 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) [2022-11-25 22:49:14,453 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 811 transitions. [2022-11-25 22:49:14,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-11-25 22:49:14,456 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:49:14,456 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:49:14,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 (21)] Forceful destruction successful, exit code 0 [2022-11-25 22:49:14,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:49:14,679 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:49:14,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:49:14,680 INFO L85 PathProgramCache]: Analyzing trace with hash 199429900, now seen corresponding path program 1 times [2022-11-25 22:49:14,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:49:14,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1490930919] [2022-11-25 22:49:14,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:49:14,683 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 22:49:14,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:49:14,685 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:49:14,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:49:17,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:49:17,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 2462 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:49:17,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:49:17,502 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 235 proven. 0 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2022-11-25 22:49:17,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:49:17,502 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:49:17,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1490930919] [2022-11-25 22:49:17,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1490930919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:49:17,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:49:17,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:49:17,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851365323] [2022-11-25 22:49:17,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:49:17,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:49:17,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:49:17,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:49:17,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:49:17,505 INFO L87 Difference]: Start difference. First operand 548 states and 811 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 22:49:17,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:49:17,676 INFO L93 Difference]: Finished difference Result 1060 states and 1657 transitions. [2022-11-25 22:49:17,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:49:17,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 283 [2022-11-25 22:49:17,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:49:17,683 INFO L225 Difference]: With dead ends: 1060 [2022-11-25 22:49:17,683 INFO L226 Difference]: Without dead ends: 548 [2022-11-25 22:49:17,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:49:17,689 INFO L413 NwaCegarLoop]: 615 mSDtfsCounter, 7 mSDsluCounter, 1210 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1825 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:49:17,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1825 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:49:17,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-11-25 22:49:17,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2022-11-25 22:49:17,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 338 states have (on average 1.2100591715976332) internal successors, (409), 343 states have internal predecessors, (409), 169 states have call successors, (169), 34 states have call predecessors, (169), 39 states have return successors, (231), 171 states have call predecessors, (231), 167 states have call successors, (231) [2022-11-25 22:49:17,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 809 transitions. [2022-11-25 22:49:17,725 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 809 transitions. Word has length 283 [2022-11-25 22:49:17,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:49:17,726 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 809 transitions. [2022-11-25 22:49:17,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 22:49:17,726 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 809 transitions. [2022-11-25 22:49:17,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-11-25 22:49:17,728 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:49:17,729 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:49:17,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:49:17,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:49:17,951 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:49:17,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:49:17,952 INFO L85 PathProgramCache]: Analyzing trace with hash -98388864, now seen corresponding path program 1 times [2022-11-25 22:49:17,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:49:17,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1416983627] [2022-11-25 22:49:17,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:49:17,956 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 22:49:17,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:49:17,957 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:49:17,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:49:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:49:20,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 2489 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:49:20,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:49:20,977 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-11-25 22:49:20,977 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:49:20,977 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:49:20,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1416983627] [2022-11-25 22:49:20,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1416983627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:49:20,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:49:20,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:49:20,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511042023] [2022-11-25 22:49:20,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:49:20,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:49:20,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:49:20,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:49:20,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:49:20,980 INFO L87 Difference]: Start difference. First operand 548 states and 809 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-25 22:49:21,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:49:21,248 INFO L93 Difference]: Finished difference Result 1039 states and 1594 transitions. [2022-11-25 22:49:21,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:49:21,250 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 291 [2022-11-25 22:49:21,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:49:21,254 INFO L225 Difference]: With dead ends: 1039 [2022-11-25 22:49:21,254 INFO L226 Difference]: Without dead ends: 553 [2022-11-25 22:49:21,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:49:21,259 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 7 mSDsluCounter, 1199 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1803 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:49:21,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1803 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:49:21,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-11-25 22:49:21,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 549. [2022-11-25 22:49:21,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 339 states have (on average 1.2094395280235988) internal successors, (410), 344 states have internal predecessors, (410), 169 states have call successors, (169), 34 states have call predecessors, (169), 39 states have return successors, (231), 171 states have call predecessors, (231), 167 states have call successors, (231) [2022-11-25 22:49:21,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 810 transitions. [2022-11-25 22:49:21,297 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 810 transitions. Word has length 291 [2022-11-25 22:49:21,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:49:21,297 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 810 transitions. [2022-11-25 22:49:21,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-25 22:49:21,298 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 810 transitions. [2022-11-25 22:49:21,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-11-25 22:49:21,300 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:49:21,300 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:49:21,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:49:21,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:49:21,515 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:49:21,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:49:21,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1671550249, now seen corresponding path program 1 times [2022-11-25 22:49:21,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:49:21,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [528059559] [2022-11-25 22:49:21,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:49:21,520 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 22:49:21,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:49:21,522 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:49:21,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 (24)] Waiting until timeout for monitored process [2022-11-25 22:49:24,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:49:24,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 2491 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 22:49:24,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:49:24,765 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-11-25 22:49:24,765 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:49:24,766 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:49:24,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [528059559] [2022-11-25 22:49:24,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [528059559] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:49:24,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:49:24,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 22:49:24,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414155197] [2022-11-25 22:49:24,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:49:24,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 22:49:24,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:49:24,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 22:49:24,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-25 22:49:24,770 INFO L87 Difference]: Start difference. First operand 549 states and 810 transitions. Second operand has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 8 states have internal predecessors, (124), 3 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-25 22:49:27,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:49:27,629 INFO L93 Difference]: Finished difference Result 1047 states and 1595 transitions. [2022-11-25 22:49:27,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 22:49:27,630 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 8 states have internal predecessors, (124), 3 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 291 [2022-11-25 22:49:27,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:49:27,636 INFO L225 Difference]: With dead ends: 1047 [2022-11-25 22:49:27,636 INFO L226 Difference]: Without dead ends: 563 [2022-11-25 22:49:27,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-25 22:49:27,641 INFO L413 NwaCegarLoop]: 589 mSDtfsCounter, 5 mSDsluCounter, 4578 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5167 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:49:27,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5167 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-25 22:49:27,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2022-11-25 22:49:27,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 556. [2022-11-25 22:49:27,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 344 states have (on average 1.2063953488372092) internal successors, (415), 350 states have internal predecessors, (415), 169 states have call successors, (169), 34 states have call predecessors, (169), 41 states have return successors, (250), 172 states have call predecessors, (250), 167 states have call successors, (250) [2022-11-25 22:49:27,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 834 transitions. [2022-11-25 22:49:27,685 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 834 transitions. Word has length 291 [2022-11-25 22:49:27,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:49:27,686 INFO L495 AbstractCegarLoop]: Abstraction has 556 states and 834 transitions. [2022-11-25 22:49:27,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 8 states have internal predecessors, (124), 3 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-25 22:49:27,686 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 834 transitions. [2022-11-25 22:49:27,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-11-25 22:49:27,689 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:49:27,689 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:49:27,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 (24)] Forceful destruction successful, exit code 0 [2022-11-25 22:49:27,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:49:27,903 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:49:27,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:49:27,903 INFO L85 PathProgramCache]: Analyzing trace with hash -2082220468, now seen corresponding path program 1 times [2022-11-25 22:49:27,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:49:27,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1932936297] [2022-11-25 22:49:27,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:49:27,906 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 22:49:27,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:49:27,907 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 22:49:27,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e2dac7-3f7e-4576-82db-2798d311dd24/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 (25)] Waiting until timeout for monitored process