./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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_f730880d-6419-4635-9fb0-639a27db2255/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 1ebada516f0ccae5e55b91f6e0fe5802f70171054dc79c047f46877ad506c65e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:18:16,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:18:16,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:18:16,809 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:18:16,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:18:16,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:18:16,815 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:18:16,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:18:16,820 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:18:16,826 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:18:16,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:18:16,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:18:16,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:18:16,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:18:16,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:18:16,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:18:16,839 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:18:16,840 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:18:16,842 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:18:16,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:18:16,850 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:18:16,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:18:16,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:18:16,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:18:16,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:18:16,865 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:18:16,865 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:18:16,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:18:16,868 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:18:16,869 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:18:16,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:18:16,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:18:16,872 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:18:16,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:18:16,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:18:16,876 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:18:16,877 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:18:16,877 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:18:16,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:18:16,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:18:16,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:18:16,881 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-26 00:18:16,924 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:18:16,925 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:18:16,925 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:18:16,925 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:18:16,926 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:18:16,927 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:18:16,927 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:18:16,927 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:18:16,927 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:18:16,927 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:18:16,928 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:18:16,929 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:18:16,929 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:18:16,929 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:18:16,929 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:18:16,930 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:18:16,930 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:18:16,930 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:18:16,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:18:16,931 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:18:16,932 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:18:16,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:18:16,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:18:16,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:18:16,932 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:18:16,933 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:18:16,933 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:18:16,933 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:18:16,934 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:18:16,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:18:16,934 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:18:16,935 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:18:16,935 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:18:16,935 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:18:16,935 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:18:16,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:18:16,936 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:18:16,936 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:18:16,936 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_f730880d-6419-4635-9fb0-639a27db2255/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ebada516f0ccae5e55b91f6e0fe5802f70171054dc79c047f46877ad506c65e [2022-11-26 00:18:17,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:18:17,305 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:18:17,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:18:17,309 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:18:17,310 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:18:17,311 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i [2022-11-26 00:18:20,406 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:18:20,946 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:18:20,946 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i [2022-11-26 00:18:20,981 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/data/b81a9ddb1/cec7ff578bdd440392acbac01a5d8ee4/FLAG16a811345 [2022-11-26 00:18:20,999 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/data/b81a9ddb1/cec7ff578bdd440392acbac01a5d8ee4 [2022-11-26 00:18:21,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:18:21,004 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:18:21,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:18:21,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:18:21,011 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:18:21,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:18:21" (1/1) ... [2022-11-26 00:18:21,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10f5e640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:21, skipping insertion in model container [2022-11-26 00:18:21,014 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:18:21" (1/1) ... [2022-11-26 00:18:21,022 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:18:21,139 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:18:21,432 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_f730880d-6419-4635-9fb0-639a27db2255/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4499,4512] [2022-11-26 00:18:21,443 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_f730880d-6419-4635-9fb0-639a27db2255/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4559,4572] [2022-11-26 00:18:22,410 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:18:22,423 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:22,424 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:22,424 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:22,425 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:22,426 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:22,428 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:18:22,440 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:22,441 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:18:22,450 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:22,453 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:22,453 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:22,458 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:22,459 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:18:22,460 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:22,460 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:22,461 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:22,547 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:18:22,548 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:18:22,549 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:18:22,553 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-26 00:18:22,556 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-26 00:18:22,556 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-26 00:18:22,816 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-26 00:18:22,819 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-26 00:18:22,820 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-26 00:18:22,821 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-26 00:18:22,822 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-26 00:18:22,824 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-26 00:18:22,825 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-26 00:18:22,825 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-26 00:18:22,826 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-26 00:18:22,827 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-26 00:18:22,828 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-26 00:18:22,978 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-26 00:18:23,005 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,007 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:18:23,010 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:18:23,011 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:18:23,013 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,015 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:18:23,018 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:18:23,019 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:18:23,019 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:18:23,020 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:18:23,020 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:18:23,021 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:18:23,062 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:18:23,080 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,081 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,081 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,082 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,082 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,083 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,083 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,083 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-26 00:18:23,084 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,084 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,085 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,085 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,085 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,086 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,088 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,089 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,089 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,090 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,093 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,093 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,101 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,101 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,102 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,112 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,113 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,113 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:18:23,156 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:18:23,183 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_f730880d-6419-4635-9fb0-639a27db2255/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4499,4512] [2022-11-26 00:18:23,184 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_f730880d-6419-4635-9fb0-639a27db2255/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4559,4572] [2022-11-26 00:18:23,219 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:18:23,221 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,222 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,222 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,223 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,223 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,225 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:18:23,229 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,230 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:18:23,230 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,231 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,231 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,232 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,233 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:18:23,233 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,234 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,234 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,240 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:18:23,241 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:18:23,241 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:18:23,244 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-26 00:18:23,245 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-26 00:18:23,245 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-26 00:18:23,265 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-26 00:18:23,266 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-26 00:18:23,267 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-26 00:18:23,268 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-26 00:18:23,268 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-26 00:18:23,269 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-26 00:18:23,270 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-26 00:18:23,270 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-26 00:18:23,271 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-26 00:18:23,271 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-26 00:18:23,272 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-26 00:18:23,291 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-26 00:18:23,336 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,340 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:18:23,342 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:18:23,343 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:18:23,344 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,346 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:18:23,347 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:18:23,348 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:18:23,348 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:18:23,349 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:18:23,349 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:18:23,350 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:18:23,365 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:18:23,370 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,370 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,371 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,371 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,371 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,372 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,372 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,372 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-26 00:18:23,373 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,373 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,373 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,374 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,374 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,374 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,375 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,376 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,376 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,376 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,378 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,379 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,384 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,385 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,385 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,391 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,391 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,392 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:18:23,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:18:23,633 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:18:23,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:23 WrapperNode [2022-11-26 00:18:23,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:18:23,635 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:18:23,635 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:18:23,635 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:18:23,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:23" (1/1) ... [2022-11-26 00:18:23,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:23" (1/1) ... [2022-11-26 00:18:23,847 INFO L138 Inliner]: procedures = 697, calls = 1920, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 1059 [2022-11-26 00:18:23,847 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:18:23,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:18:23,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:18:23,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:18:23,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:23" (1/1) ... [2022-11-26 00:18:23,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:23" (1/1) ... [2022-11-26 00:18:23,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:23" (1/1) ... [2022-11-26 00:18:23,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:23" (1/1) ... [2022-11-26 00:18:23,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:23" (1/1) ... [2022-11-26 00:18:23,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:23" (1/1) ... [2022-11-26 00:18:23,981 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:23" (1/1) ... [2022-11-26 00:18:23,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:23" (1/1) ... [2022-11-26 00:18:23,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:18:23,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:18:23,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:18:23,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:18:23,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:23" (1/1) ... [2022-11-26 00:18:24,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:18:24,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:18:24,041 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:18:24,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:18:24,092 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-11-26 00:18:24,093 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-11-26 00:18:24,093 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-11-26 00:18:24,093 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-11-26 00:18:24,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:18:24,093 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-26 00:18:24,094 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-26 00:18:24,095 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-26 00:18:24,095 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-26 00:18:24,095 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-26 00:18:24,095 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-26 00:18:24,095 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-11-26 00:18:24,095 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-11-26 00:18:24,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-26 00:18:24,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:18:24,097 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-26 00:18:24,097 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-26 00:18:24,097 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-26 00:18:24,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-26 00:18:24,097 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_node [2022-11-26 00:18:24,098 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_node [2022-11-26 00:18:24,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:18:24,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:18:24,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:18:24,098 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-11-26 00:18:24,098 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-11-26 00:18:24,099 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-26 00:18:24,099 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-26 00:18:24,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:18:24,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:18:24,099 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-26 00:18:24,099 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-26 00:18:24,100 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-26 00:18:24,100 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-26 00:18:24,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-26 00:18:24,100 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-11-26 00:18:24,100 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-11-26 00:18:24,100 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-11-26 00:18:24,100 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-11-26 00:18:24,101 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-26 00:18:24,101 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-26 00:18:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-26 00:18:24,102 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-26 00:18:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-26 00:18:24,102 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-26 00:18:24,103 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-26 00:18:24,103 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-26 00:18:24,103 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2022-11-26 00:18:24,103 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2022-11-26 00:18:24,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:18:24,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:18:24,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 00:18:24,104 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-11-26 00:18:24,105 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-11-26 00:18:24,105 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-26 00:18:24,105 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-26 00:18:24,105 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-26 00:18:24,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-26 00:18:24,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:18:24,106 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-26 00:18:24,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-26 00:18:24,106 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-11-26 00:18:24,106 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-11-26 00:18:24,106 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-26 00:18:24,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-26 00:18:24,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:18:24,107 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2022-11-26 00:18:24,107 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2022-11-26 00:18:24,581 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:18:24,583 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:18:26,722 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:18:27,067 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:18:27,068 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-26 00:18:27,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:18:27 BoogieIcfgContainer [2022-11-26 00:18:27,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:18:27,077 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:18:27,077 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:18:27,081 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:18:27,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:18:21" (1/3) ... [2022-11-26 00:18:27,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c880244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:18:27, skipping insertion in model container [2022-11-26 00:18:27,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:23" (2/3) ... [2022-11-26 00:18:27,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c880244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:18:27, skipping insertion in model container [2022-11-26 00:18:27,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:18:27" (3/3) ... [2022-11-26 00:18:27,086 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_remove_harness.i [2022-11-26 00:18:27,106 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:18:27,106 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:18:27,187 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:18:27,199 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;@50b656e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:18:27,200 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:18:27,208 INFO L276 IsEmpty]: Start isEmpty. Operand has 389 states, 199 states have (on average 1.221105527638191) internal successors, (243), 204 states have internal predecessors, (243), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2022-11-26 00:18:27,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-26 00:18:27,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:27,222 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-26 00:18:27,223 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:18:27,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:27,228 INFO L85 PathProgramCache]: Analyzing trace with hash -555384632, now seen corresponding path program 1 times [2022-11-26 00:18:27,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:27,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138070087] [2022-11-26 00:18:27,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:27,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:27,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:28,406 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-11-26 00:18:28,406 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:28,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138070087] [2022-11-26 00:18:28,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138070087] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:18:28,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032639484] [2022-11-26 00:18:28,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:28,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:28,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:18:28,411 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:18:28,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:18:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:29,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 2394 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-26 00:18:29,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:29,259 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-11-26 00:18:29,259 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:18:29,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032639484] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:29,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:18:29,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2022-11-26 00:18:29,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117969417] [2022-11-26 00:18:29,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:29,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:18:29,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:29,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:18:29,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:18:29,304 INFO L87 Difference]: Start difference. First operand has 389 states, 199 states have (on average 1.221105527638191) internal successors, (243), 204 states have internal predecessors, (243), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-26 00:18:30,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:30,602 INFO L93 Difference]: Finished difference Result 710 states and 1085 transitions. [2022-11-26 00:18:30,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:18:30,605 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 106 [2022-11-26 00:18:30,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:30,624 INFO L225 Difference]: With dead ends: 710 [2022-11-26 00:18:30,631 INFO L226 Difference]: Without dead ends: 386 [2022-11-26 00:18:30,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:18:30,653 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:30,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 513 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:18:30,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2022-11-26 00:18:30,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2022-11-26 00:18:30,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 198 states have (on average 1.1919191919191918) internal successors, (236), 201 states have internal predecessors, (236), 160 states have call successors, (160), 27 states have call predecessors, (160), 26 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2022-11-26 00:18:30,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 554 transitions. [2022-11-26 00:18:30,781 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 554 transitions. Word has length 106 [2022-11-26 00:18:30,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:30,783 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 554 transitions. [2022-11-26 00:18:30,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-26 00:18:30,784 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 554 transitions. [2022-11-26 00:18:30,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-26 00:18:30,793 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:30,793 INFO L195 NwaCegarLoop]: trace histogram [11, 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] [2022-11-26 00:18:30,809 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-26 00:18:31,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:31,005 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:18:31,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:31,005 INFO L85 PathProgramCache]: Analyzing trace with hash -2113776520, now seen corresponding path program 1 times [2022-11-26 00:18:31,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:31,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52287552] [2022-11-26 00:18:31,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:31,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:31,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:31,548 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2022-11-26 00:18:31,549 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:31,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52287552] [2022-11-26 00:18:31,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52287552] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:18:31,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635623780] [2022-11-26 00:18:31,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:31,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:31,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:18:31,558 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:18:31,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:18:32,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:32,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 2468 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 00:18:32,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:32,332 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-11-26 00:18:32,333 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:18:32,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635623780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:32,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:18:32,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-11-26 00:18:32,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108255434] [2022-11-26 00:18:32,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:32,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:18:32,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:32,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:18:32,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:18:32,336 INFO L87 Difference]: Start difference. First operand 386 states and 554 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-26 00:18:34,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:34,531 INFO L93 Difference]: Finished difference Result 744 states and 1084 transitions. [2022-11-26 00:18:34,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:18:34,532 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 118 [2022-11-26 00:18:34,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:34,537 INFO L225 Difference]: With dead ends: 744 [2022-11-26 00:18:34,537 INFO L226 Difference]: Without dead ends: 388 [2022-11-26 00:18:34,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:18:34,540 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 49 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 1837 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:34,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 1837 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-26 00:18:34,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2022-11-26 00:18:34,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 388. [2022-11-26 00:18:34,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 199 states have (on average 1.1909547738693467) internal successors, (237), 203 states have internal predecessors, (237), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (171), 158 states have call predecessors, (171), 158 states have call successors, (171) [2022-11-26 00:18:34,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 568 transitions. [2022-11-26 00:18:34,570 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 568 transitions. Word has length 118 [2022-11-26 00:18:34,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:34,572 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 568 transitions. [2022-11-26 00:18:34,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-26 00:18:34,573 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 568 transitions. [2022-11-26 00:18:34,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-26 00:18:34,580 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:34,580 INFO L195 NwaCegarLoop]: trace histogram [11, 3, 3, 3, 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] [2022-11-26 00:18:34,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:18:34,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:34,789 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:18:34,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:34,790 INFO L85 PathProgramCache]: Analyzing trace with hash 281380248, now seen corresponding path program 1 times [2022-11-26 00:18:34,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:34,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785386771] [2022-11-26 00:18:34,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:34,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:34,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:35,415 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-11-26 00:18:35,419 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:35,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785386771] [2022-11-26 00:18:35,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785386771] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:18:35,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969745209] [2022-11-26 00:18:35,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:35,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:35,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:18:35,424 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:18:35,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:18:36,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:36,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 2518 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-26 00:18:36,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:36,250 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-11-26 00:18:36,252 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:18:36,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969745209] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:36,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:18:36,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-26 00:18:36,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092452254] [2022-11-26 00:18:36,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:36,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:18:36,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:36,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:18:36,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-11-26 00:18:36,258 INFO L87 Difference]: Start difference. First operand 388 states and 568 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-26 00:18:40,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:40,079 INFO L93 Difference]: Finished difference Result 759 states and 1143 transitions. [2022-11-26 00:18:40,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:18:40,079 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 126 [2022-11-26 00:18:40,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:40,083 INFO L225 Difference]: With dead ends: 759 [2022-11-26 00:18:40,084 INFO L226 Difference]: Without dead ends: 401 [2022-11-26 00:18:40,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:18:40,091 INFO L413 NwaCegarLoop]: 471 mSDtfsCounter, 64 mSDsluCounter, 2211 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 2682 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:40,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 2682 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-26 00:18:40,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2022-11-26 00:18:40,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 399. [2022-11-26 00:18:40,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 207 states have (on average 1.1932367149758454) internal successors, (247), 211 states have internal predecessors, (247), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (190), 161 states have call predecessors, (190), 160 states have call successors, (190) [2022-11-26 00:18:40,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 599 transitions. [2022-11-26 00:18:40,132 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 599 transitions. Word has length 126 [2022-11-26 00:18:40,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:40,133 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 599 transitions. [2022-11-26 00:18:40,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-26 00:18:40,133 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 599 transitions. [2022-11-26 00:18:40,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-26 00:18:40,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:40,136 INFO L195 NwaCegarLoop]: trace histogram [11, 3, 3, 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] [2022-11-26 00:18:40,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:18:40,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:40,345 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:18:40,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:40,346 INFO L85 PathProgramCache]: Analyzing trace with hash 80229462, now seen corresponding path program 1 times [2022-11-26 00:18:40,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:40,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131496793] [2022-11-26 00:18:40,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:40,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:40,451 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:18:40,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [35910140] [2022-11-26 00:18:40,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:40,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:40,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:18:40,453 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:18:40,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 00:18:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:41,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 2650 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-26 00:18:41,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:41,307 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-11-26 00:18:41,307 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:18:41,307 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:41,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131496793] [2022-11-26 00:18:41,308 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:18:41,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35910140] [2022-11-26 00:18:41,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35910140] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:41,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:41,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-26 00:18:41,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245561481] [2022-11-26 00:18:41,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:41,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:18:41,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:41,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:18:41,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:18:41,311 INFO L87 Difference]: Start difference. First operand 399 states and 599 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-26 00:18:43,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:43,709 INFO L93 Difference]: Finished difference Result 776 states and 1204 transitions. [2022-11-26 00:18:43,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:18:43,709 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 135 [2022-11-26 00:18:43,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:43,713 INFO L225 Difference]: With dead ends: 776 [2022-11-26 00:18:43,713 INFO L226 Difference]: Without dead ends: 407 [2022-11-26 00:18:43,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:18:43,717 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 60 mSDsluCounter, 1799 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 2282 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:43,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 2282 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-26 00:18:43,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-11-26 00:18:43,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 399. [2022-11-26 00:18:43,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 207 states have (on average 1.1932367149758454) internal successors, (247), 211 states have internal predecessors, (247), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (190), 161 states have call predecessors, (190), 160 states have call successors, (190) [2022-11-26 00:18:43,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 599 transitions. [2022-11-26 00:18:43,743 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 599 transitions. Word has length 135 [2022-11-26 00:18:43,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:43,744 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 599 transitions. [2022-11-26 00:18:43,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-26 00:18:43,744 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 599 transitions. [2022-11-26 00:18:43,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-26 00:18:43,746 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:43,747 INFO L195 NwaCegarLoop]: trace histogram [11, 4, 4, 3, 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] [2022-11-26 00:18:43,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-26 00:18:43,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:43,956 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:18:43,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:43,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1121658856, now seen corresponding path program 1 times [2022-11-26 00:18:43,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:43,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861881311] [2022-11-26 00:18:43,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:43,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:44,105 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:18:44,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [410886501] [2022-11-26 00:18:44,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:44,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:44,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:18:44,107 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:18:44,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-26 00:18:44,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:44,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 2704 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-26 00:18:44,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:45,017 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-11-26 00:18:45,017 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:18:45,017 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:45,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861881311] [2022-11-26 00:18:45,018 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:18:45,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410886501] [2022-11-26 00:18:45,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410886501] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:45,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:45,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-26 00:18:45,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684474473] [2022-11-26 00:18:45,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:45,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:18:45,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:45,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:18:45,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:18:45,020 INFO L87 Difference]: Start difference. First operand 399 states and 599 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2022-11-26 00:18:46,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:18:50,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:50,991 INFO L93 Difference]: Finished difference Result 778 states and 1196 transitions. [2022-11-26 00:18:50,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-26 00:18:50,992 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 143 [2022-11-26 00:18:50,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:50,995 INFO L225 Difference]: With dead ends: 778 [2022-11-26 00:18:50,995 INFO L226 Difference]: Without dead ends: 409 [2022-11-26 00:18:50,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-26 00:18:50,998 INFO L413 NwaCegarLoop]: 466 mSDtfsCounter, 83 mSDsluCounter, 2623 mSDsCounter, 0 mSdLazyCounter, 787 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 3089 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:50,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 3089 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 787 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-11-26 00:18:51,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2022-11-26 00:18:51,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 399. [2022-11-26 00:18:51,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 207 states have (on average 1.1932367149758454) internal successors, (247), 211 states have internal predecessors, (247), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (190), 161 states have call predecessors, (190), 160 states have call successors, (190) [2022-11-26 00:18:51,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 599 transitions. [2022-11-26 00:18:51,030 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 599 transitions. Word has length 143 [2022-11-26 00:18:51,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:51,031 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 599 transitions. [2022-11-26 00:18:51,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2022-11-26 00:18:51,031 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 599 transitions. [2022-11-26 00:18:51,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-26 00:18:51,033 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:51,034 INFO L195 NwaCegarLoop]: trace histogram [11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:51,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-26 00:18:51,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:51,244 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:18:51,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:51,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1813581476, now seen corresponding path program 2 times [2022-11-26 00:18:51,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:51,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484287363] [2022-11-26 00:18:51,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:51,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:51,354 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:18:51,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1704455745] [2022-11-26 00:18:51,355 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:18:51,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:51,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:18:51,356 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:18:51,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-26 00:18:52,519 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-26 00:18:52,519 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:18:52,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 1881 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-26 00:18:52,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:52,564 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2022-11-26 00:18:52,565 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:18:52,565 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:52,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484287363] [2022-11-26 00:18:52,565 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:18:52,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704455745] [2022-11-26 00:18:52,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704455745] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:52,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:52,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:18:52,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286520612] [2022-11-26 00:18:52,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:52,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:18:52,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:52,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:18:52,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:18:52,568 INFO L87 Difference]: Start difference. First operand 399 states and 599 transitions. Second operand has 5 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-26 00:18:55,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:55,345 INFO L93 Difference]: Finished difference Result 730 states and 1127 transitions. [2022-11-26 00:18:55,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:18:55,346 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 152 [2022-11-26 00:18:55,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:55,349 INFO L225 Difference]: With dead ends: 730 [2022-11-26 00:18:55,349 INFO L226 Difference]: Without dead ends: 399 [2022-11-26 00:18:55,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:18:55,353 INFO L413 NwaCegarLoop]: 474 mSDtfsCounter, 0 mSDsluCounter, 1364 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1838 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:55,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1838 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-26 00:18:55,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2022-11-26 00:18:55,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 399. [2022-11-26 00:18:55,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 207 states have (on average 1.1932367149758454) internal successors, (247), 211 states have internal predecessors, (247), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (189), 161 states have call predecessors, (189), 160 states have call successors, (189) [2022-11-26 00:18:55,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 598 transitions. [2022-11-26 00:18:55,383 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 598 transitions. Word has length 152 [2022-11-26 00:18:55,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:55,384 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 598 transitions. [2022-11-26 00:18:55,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-26 00:18:55,385 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 598 transitions. [2022-11-26 00:18:55,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-26 00:18:55,387 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:55,387 INFO L195 NwaCegarLoop]: trace histogram [11, 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, 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] [2022-11-26 00:18:55,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-26 00:18:55,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:55,605 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:18:55,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:55,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1704981436, now seen corresponding path program 3 times [2022-11-26 00:18:55,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:55,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144938372] [2022-11-26 00:18:55,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:55,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:55,705 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:18:55,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [999458182] [2022-11-26 00:18:55,705 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-26 00:18:55,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:18:55,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:18:55,707 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:18:55,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-26 00:18:56,215 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-26 00:18:56,215 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:18:56,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-26 00:18:56,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:56,405 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 94 proven. 2 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-11-26 00:18:56,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:18:56,836 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-11-26 00:18:56,836 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:56,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144938372] [2022-11-26 00:18:56,836 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:18:56,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999458182] [2022-11-26 00:18:56,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999458182] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:18:56,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1494450136] [2022-11-26 00:18:56,861 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2022-11-26 00:18:56,861 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:18:56,865 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:18:56,870 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:18:56,871 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:19:00,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:00,990 INFO L217 Elim1Store]: Index analysis took 546 ms [2022-11-26 00:19:19,483 WARN L233 SmtUtils]: Spent 18.41s 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) [2022-11-26 00:19:19,489 INFO L321 Elim1Store]: treesize reduction 1958, result has 47.2 percent of original size [2022-11-26 00:19:19,493 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 [2022-11-26 00:19:23,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:24,090 INFO L217 Elim1Store]: Index analysis took 904 ms [2022-11-26 00:19:53,066 WARN L233 SmtUtils]: Spent 28.92s 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) [2022-11-26 00:19:53,069 INFO L321 Elim1Store]: treesize reduction 3510, result has 33.3 percent of original size [2022-11-26 00:19:53,071 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 [2022-11-26 00:21:27,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:27,024 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 [2022-11-26 00:21:27,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:27,031 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 [2022-11-26 00:21:27,037 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 [2022-11-26 00:21:27,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:27,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:27,047 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 [2022-11-26 00:21:30,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:30,931 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 [2022-11-26 00:21:31,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,407 INFO L217 Elim1Store]: Index analysis took 114 ms [2022-11-26 00:21:31,413 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 [2022-11-26 00:21:31,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:31,982 INFO L217 Elim1Store]: Index analysis took 125 ms [2022-11-26 00:21:32,021 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 [2022-11-26 00:21:32,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:32,622 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 [2022-11-26 00:21:33,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:33,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:33,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:33,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:33,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:33,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:33,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:33,263 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 [2022-11-26 00:21:41,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,213 INFO L217 Elim1Store]: Index analysis took 107 ms [2022-11-26 00:21:41,219 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 [2022-11-26 00:21:41,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:41,670 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 [2022-11-26 00:21:42,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:42,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:42,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:42,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:42,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:42,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:42,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:42,265 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 [2022-11-26 00:21:42,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:42,838 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 [2022-11-26 00:21:43,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:43,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:43,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:43,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:43,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:43,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:43,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:21:43,497 INFO L217 Elim1Store]: Index analysis took 116 ms [2022-11-26 00:21:43,529 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 [2022-11-26 00:22:01,538 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 [2022-11-26 00:22:01,651 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 [2022-11-26 00:22:01,703 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 [2022-11-26 00:22:02,024 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 [2022-11-26 00:22:02,114 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 [2022-11-26 00:22:02,163 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 [2022-11-26 00:22:18,893 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 [2022-11-26 00:22:18,985 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 [2022-11-26 00:22:19,032 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 [2022-11-26 00:22:19,289 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 [2022-11-26 00:22:19,387 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 [2022-11-26 00:22:19,433 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 [2022-11-26 00:22:22,087 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 [2022-11-26 00:22:22,198 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 [2022-11-26 00:22:22,703 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 [2022-11-26 00:22:22,943 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 [2022-11-26 00:22:37,177 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 [2022-11-26 00:22:37,184 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 [2022-11-26 00:22:37,217 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 [2022-11-26 00:22:37,224 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 [2022-11-26 00:22:37,256 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 [2022-11-26 00:22:37,262 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 [2022-11-26 00:22:37,268 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 [2022-11-26 00:22:37,288 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 [2022-11-26 00:22:37,332 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 [2022-11-26 00:22:37,339 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 [2022-11-26 00:22:37,368 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:22:37,369 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 [2022-11-26 00:22:37,426 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:22:37,426 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 [2022-11-26 00:22:37,437 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 [2022-11-26 00:22:37,447 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 [2022-11-26 00:22:37,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 00:22:37,606 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 [2022-11-26 00:22:37,609 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 [2022-11-26 00:22:37,621 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 [2022-11-26 00:22:37,624 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 [2022-11-26 00:22:39,445 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 [2022-11-26 00:22:39,735 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 [2022-11-26 00:22:39,915 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 [2022-11-26 00:22:56,614 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 [2022-11-26 00:22:56,867 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 [2022-11-26 00:22:56,974 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 [2022-11-26 00:24:36,452 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-26 00:24:36,453 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 [2022-11-26 00:24:36,984 INFO L321 Elim1Store]: treesize reduction 118, result has 13.2 percent of original size [2022-11-26 00:24:36,985 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 138 treesize of output 157 [2022-11-26 00:24:37,231 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 322 treesize of output 314 [2022-11-26 00:24:37,500 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 100 treesize of output 89 [2022-11-26 00:24:37,653 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 [2022-11-26 00:24:37,820 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 [2022-11-26 00:24:38,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-26 00:24:38,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:24:38,200 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) [2022-11-26 00:24:38,204 INFO L158 Benchmark]: Toolchain (without parser) took 377200.29ms. Allocated memory was 151.0MB in the beginning and 704.6MB in the end (delta: 553.6MB). Free memory was 98.7MB in the beginning and 567.4MB in the end (delta: -468.6MB). Peak memory consumption was 455.4MB. Max. memory is 16.1GB. [2022-11-26 00:24:38,204 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 151.0MB. Free memory is still 91.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:24:38,205 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2627.04ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 98.7MB in the beginning and 116.9MB in the end (delta: -18.1MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. [2022-11-26 00:24:38,205 INFO L158 Benchmark]: Boogie Procedure Inliner took 212.49ms. Allocated memory is still 182.5MB. Free memory was 116.9MB in the beginning and 105.3MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-26 00:24:38,205 INFO L158 Benchmark]: Boogie Preprocessor took 149.48ms. Allocated memory is still 182.5MB. Free memory was 105.3MB in the beginning and 95.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-26 00:24:38,206 INFO L158 Benchmark]: RCFGBuilder took 3075.23ms. Allocated memory was 182.5MB in the beginning and 228.6MB in the end (delta: 46.1MB). Free memory was 95.9MB in the beginning and 109.8MB in the end (delta: -13.9MB). Peak memory consumption was 71.1MB. Max. memory is 16.1GB. [2022-11-26 00:24:38,206 INFO L158 Benchmark]: TraceAbstraction took 371126.90ms. Allocated memory was 228.6MB in the beginning and 704.6MB in the end (delta: 476.1MB). Free memory was 108.7MB in the beginning and 567.4MB in the end (delta: -458.7MB). Peak memory consumption was 386.5MB. Max. memory is 16.1GB. [2022-11-26 00:24:38,208 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 151.0MB. Free memory is still 91.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2627.04ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 98.7MB in the beginning and 116.9MB in the end (delta: -18.1MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 212.49ms. Allocated memory is still 182.5MB. Free memory was 116.9MB in the beginning and 105.3MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 149.48ms. Allocated memory is still 182.5MB. Free memory was 105.3MB in the beginning and 95.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 3075.23ms. Allocated memory was 182.5MB in the beginning and 228.6MB in the end (delta: 46.1MB). Free memory was 95.9MB in the beginning and 109.8MB in the end (delta: -13.9MB). Peak memory consumption was 71.1MB. Max. memory is 16.1GB. * TraceAbstraction took 371126.90ms. Allocated memory was 228.6MB in the beginning and 704.6MB in the end (delta: 476.1MB). Free memory was 108.7MB in the beginning and 567.4MB in the end (delta: -458.7MB). Peak memory consumption was 386.5MB. 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. [2022-11-26 00:24:38,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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_f730880d-6419-4635-9fb0-639a27db2255/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 1ebada516f0ccae5e55b91f6e0fe5802f70171054dc79c047f46877ad506c65e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:24:40,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:24:40,535 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:24:40,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:24:40,555 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:24:40,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:24:40,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:24:40,559 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:24:40,561 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:24:40,562 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:24:40,563 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:24:40,564 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:24:40,565 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:24:40,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:24:40,568 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:24:40,569 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:24:40,570 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:24:40,571 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:24:40,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:24:40,575 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:24:40,577 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:24:40,578 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:24:40,579 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:24:40,580 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:24:40,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:24:40,585 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:24:40,585 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:24:40,586 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:24:40,586 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:24:40,587 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:24:40,595 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:24:40,596 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:24:40,598 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:24:40,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:24:40,601 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:24:40,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:24:40,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:24:40,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:24:40,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:24:40,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:24:40,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:24:40,618 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-26 00:24:40,659 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:24:40,663 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:24:40,664 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:24:40,664 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:24:40,665 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:24:40,666 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:24:40,666 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:24:40,666 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:24:40,666 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:24:40,666 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:24:40,667 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:24:40,668 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:24:40,669 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:24:40,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:24:40,669 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:24:40,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:24:40,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:24:40,670 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:24:40,670 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 00:24:40,670 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 00:24:40,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:24:40,670 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:24:40,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:24:40,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:24:40,671 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 00:24:40,671 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:24:40,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:24:40,672 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:24:40,672 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:24:40,672 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:24:40,672 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 00:24:40,673 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 00:24:40,673 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:24:40,673 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:24:40,673 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 00:24:40,674 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_f730880d-6419-4635-9fb0-639a27db2255/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ebada516f0ccae5e55b91f6e0fe5802f70171054dc79c047f46877ad506c65e [2022-11-26 00:24:41,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:24:41,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:24:41,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:24:41,085 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:24:41,085 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:24:41,087 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i [2022-11-26 00:24:44,351 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:24:44,910 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:24:44,912 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i [2022-11-26 00:24:44,951 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/data/76b066fd5/152451ed05b74a869a497f060ba5a71f/FLAG1a487d3a7 [2022-11-26 00:24:44,974 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/data/76b066fd5/152451ed05b74a869a497f060ba5a71f [2022-11-26 00:24:44,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:24:44,981 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:24:44,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:24:44,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:24:44,988 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:24:44,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:24:44" (1/1) ... [2022-11-26 00:24:44,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@656f3589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:44, skipping insertion in model container [2022-11-26 00:24:44,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:24:44" (1/1) ... [2022-11-26 00:24:44,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:24:45,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:24:45,449 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_f730880d-6419-4635-9fb0-639a27db2255/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4499,4512] [2022-11-26 00:24:45,459 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_f730880d-6419-4635-9fb0-639a27db2255/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4559,4572] [2022-11-26 00:24:46,452 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:46,458 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:46,459 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:46,460 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:46,461 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:46,462 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:46,465 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:46,477 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:46,478 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:46,478 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:46,480 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:46,481 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:46,483 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:46,484 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:46,485 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:46,486 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:46,486 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:46,568 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:24:46,568 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:24:46,569 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:24:46,576 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-26 00:24:46,578 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-26 00:24:46,579 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-26 00:24:46,948 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-26 00:24:46,949 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-26 00:24:46,951 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-26 00:24:46,952 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-26 00:24:46,954 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-26 00:24:46,955 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-26 00:24:46,956 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-26 00:24:46,957 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-26 00:24:46,958 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-26 00:24:46,959 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-26 00:24:46,960 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-26 00:24:47,128 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-26 00:24:47,158 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,161 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,164 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,166 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,168 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,170 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,175 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,175 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,176 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,177 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,178 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,178 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,247 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:24:47,270 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,273 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,273 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,273 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,274 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,275 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,279 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,280 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-26 00:24:47,281 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,281 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,281 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,282 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,282 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,282 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,286 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,286 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,286 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,286 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,290 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,291 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,311 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,312 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,313 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,349 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,350 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,350 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:24:47,388 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-26 00:24:47,432 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:24:47,437 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_f730880d-6419-4635-9fb0-639a27db2255/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4499,4512] [2022-11-26 00:24:47,438 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_f730880d-6419-4635-9fb0-639a27db2255/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4559,4572] [2022-11-26 00:24:47,505 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,507 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,508 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,508 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,509 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,510 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,511 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,517 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,517 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,518 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,519 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,519 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,520 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,521 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,521 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,522 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,522 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,529 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:24:47,530 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:24:47,531 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:24:47,534 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-26 00:24:47,535 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-26 00:24:47,535 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-26 00:24:47,568 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-26 00:24:47,568 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-26 00:24:47,569 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-26 00:24:47,570 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-26 00:24:47,571 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-26 00:24:47,572 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-26 00:24:47,572 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-26 00:24:47,573 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-26 00:24:47,573 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-26 00:24:47,574 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-26 00:24:47,574 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-26 00:24:47,619 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-26 00:24:47,640 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,643 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,645 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,646 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,648 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,650 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,652 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,653 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,654 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,658 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,658 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,659 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,696 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:24:47,709 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,710 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,711 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,711 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,712 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,712 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,713 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,714 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-26 00:24:47,714 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,715 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,715 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,715 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,715 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,716 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,716 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,717 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,717 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,717 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,726 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,727 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,736 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,740 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,741 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,752 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,753 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,754 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:24:47,826 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:24:47,851 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_f730880d-6419-4635-9fb0-639a27db2255/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4499,4512] [2022-11-26 00:24:47,851 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_f730880d-6419-4635-9fb0-639a27db2255/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4559,4572] [2022-11-26 00:24:47,877 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,879 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,880 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,880 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,881 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,881 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,883 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,887 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,888 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,888 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,889 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,889 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,890 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,890 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,891 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,891 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,891 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,898 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:24:47,898 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:24:47,898 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:24:47,901 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-26 00:24:47,902 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-26 00:24:47,903 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-26 00:24:47,922 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-26 00:24:47,922 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-26 00:24:47,923 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-26 00:24:47,924 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-26 00:24:47,924 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-26 00:24:47,925 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-26 00:24:47,925 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-26 00:24:47,926 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-26 00:24:47,927 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-26 00:24:47,927 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-26 00:24:47,928 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-26 00:24:47,952 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-26 00:24:47,972 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,974 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,975 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,977 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,978 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:47,980 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,981 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,983 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,983 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,984 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,984 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:47,985 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:24:48,031 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:24:48,037 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:48,042 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:48,043 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:48,043 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:48,043 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:48,044 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:48,044 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:48,045 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-26 00:24:48,045 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:48,046 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:48,046 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:48,046 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:48,047 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:48,047 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:48,048 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:48,049 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:48,049 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:48,049 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:48,052 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:48,052 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:48,059 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:48,060 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:48,060 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:48,068 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:48,069 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:48,069 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:24:48,073 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:24:48,415 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:24:48,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:48 WrapperNode [2022-11-26 00:24:48,416 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:24:48,417 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:24:48,417 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:24:48,417 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:24:48,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:48" (1/1) ... [2022-11-26 00:24:48,560 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:48" (1/1) ... [2022-11-26 00:24:48,672 INFO L138 Inliner]: procedures = 717, calls = 1920, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 1040 [2022-11-26 00:24:48,674 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:24:48,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:24:48,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:24:48,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:24:48,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:48" (1/1) ... [2022-11-26 00:24:48,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:48" (1/1) ... [2022-11-26 00:24:48,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:48" (1/1) ... [2022-11-26 00:24:48,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:48" (1/1) ... [2022-11-26 00:24:48,745 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:48" (1/1) ... [2022-11-26 00:24:48,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:48" (1/1) ... [2022-11-26 00:24:48,783 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:48" (1/1) ... [2022-11-26 00:24:48,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:48" (1/1) ... [2022-11-26 00:24:48,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:24:48,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:24:48,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:24:48,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:24:48,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:48" (1/1) ... [2022-11-26 00:24:48,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:24:48,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:24:48,853 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:24:48,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:24:48,908 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-11-26 00:24:48,908 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-11-26 00:24:48,908 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-11-26 00:24:48,908 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-11-26 00:24:48,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:24:48,909 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-26 00:24:48,909 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-26 00:24:48,909 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-26 00:24:48,909 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-26 00:24:48,909 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-26 00:24:48,909 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-26 00:24:48,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-26 00:24:48,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-26 00:24:48,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-26 00:24:48,915 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-11-26 00:24:48,915 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-11-26 00:24:48,915 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-26 00:24:48,915 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-26 00:24:48,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-26 00:24:48,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-26 00:24:48,916 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_node [2022-11-26 00:24:48,916 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_node [2022-11-26 00:24:48,921 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-26 00:24:48,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-26 00:24:48,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:24:48,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:24:48,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:24:48,923 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-11-26 00:24:48,923 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-11-26 00:24:48,923 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-26 00:24:48,924 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-26 00:24:48,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:24:48,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:24:48,924 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-26 00:24:48,924 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-26 00:24:48,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-26 00:24:48,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-26 00:24:48,925 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-26 00:24:48,925 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-26 00:24:48,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-26 00:24:48,929 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-11-26 00:24:48,929 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-11-26 00:24:48,929 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-11-26 00:24:48,929 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-11-26 00:24:48,929 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-26 00:24:48,929 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-26 00:24:48,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-26 00:24:48,930 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-26 00:24:48,930 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-26 00:24:48,930 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-26 00:24:48,930 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-26 00:24:48,930 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-26 00:24:48,930 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2022-11-26 00:24:48,931 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2022-11-26 00:24:48,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:24:48,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:24:48,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-26 00:24:48,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 00:24:48,932 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-11-26 00:24:48,932 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-11-26 00:24:48,932 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-26 00:24:48,932 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-26 00:24:48,932 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-26 00:24:48,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-26 00:24:48,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-26 00:24:48,933 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-26 00:24:48,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-26 00:24:48,933 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-11-26 00:24:48,933 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-11-26 00:24:48,933 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2022-11-26 00:24:48,933 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2022-11-26 00:24:49,340 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:24:49,343 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:24:55,109 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:24:55,119 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:24:55,120 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-26 00:24:55,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:24:55 BoogieIcfgContainer [2022-11-26 00:24:55,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:24:55,127 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:24:55,127 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:24:55,130 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:24:55,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:24:44" (1/3) ... [2022-11-26 00:24:55,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bfcda82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:24:55, skipping insertion in model container [2022-11-26 00:24:55,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:48" (2/3) ... [2022-11-26 00:24:55,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bfcda82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:24:55, skipping insertion in model container [2022-11-26 00:24:55,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:24:55" (3/3) ... [2022-11-26 00:24:55,135 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_remove_harness.i [2022-11-26 00:24:55,157 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:24:55,157 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:24:55,231 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:24:55,237 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;@247485dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:24:55,237 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:24:55,247 INFO L276 IsEmpty]: Start isEmpty. Operand has 448 states, 258 states have (on average 1.2674418604651163) internal successors, (327), 263 states have internal predecessors, (327), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2022-11-26 00:24:55,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-26 00:24:55,277 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:55,279 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, 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] [2022-11-26 00:24:55,280 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:24:55,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:55,285 INFO L85 PathProgramCache]: Analyzing trace with hash 236384645, now seen corresponding path program 1 times [2022-11-26 00:24:55,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:24:55,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [842460993] [2022-11-26 00:24:55,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:55,307 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 [2022-11-26 00:24:55,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:24:55,313 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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) [2022-11-26 00:24:55,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:24:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:56,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 1606 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-26 00:24:56,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:24:56,800 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2022-11-26 00:24:56,800 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:24:56,801 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:24:56,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [842460993] [2022-11-26 00:24:56,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [842460993] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:56,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:24:56,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:24:56,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704357334] [2022-11-26 00:24:56,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:56,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:24:56,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:24:56,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:24:56,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:24:56,860 INFO L87 Difference]: Start difference. First operand has 448 states, 258 states have (on average 1.2674418604651163) internal successors, (327), 263 states have internal predecessors, (327), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-26 00:24:57,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:57,008 INFO L93 Difference]: Finished difference Result 883 states and 1408 transitions. [2022-11-26 00:24:57,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:24:57,010 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 141 [2022-11-26 00:24:57,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:57,032 INFO L225 Difference]: With dead ends: 883 [2022-11-26 00:24:57,032 INFO L226 Difference]: Without dead ends: 441 [2022-11-26 00:24:57,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:24:57,047 INFO L413 NwaCegarLoop]: 634 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, 634 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 [2022-11-26 00:24:57,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:24:57,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-11-26 00:24:57,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2022-11-26 00:24:57,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 253 states have (on average 1.2292490118577075) internal successors, (311), 256 states have internal predecessors, (311), 160 states have call successors, (160), 27 states have call predecessors, (160), 26 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2022-11-26 00:24:57,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 629 transitions. [2022-11-26 00:24:57,155 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 629 transitions. Word has length 141 [2022-11-26 00:24:57,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:57,156 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 629 transitions. [2022-11-26 00:24:57,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-26 00:24:57,157 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 629 transitions. [2022-11-26 00:24:57,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-26 00:24:57,161 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:57,161 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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] [2022-11-26 00:24:57,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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)] Ended with exit code 0 [2022-11-26 00:24:57,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:24:57,377 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:24:57,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:57,378 INFO L85 PathProgramCache]: Analyzing trace with hash 858158561, now seen corresponding path program 1 times [2022-11-26 00:24:57,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:24:57,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1525264973] [2022-11-26 00:24:57,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:57,381 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 [2022-11-26 00:24:57,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:24:57,383 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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) [2022-11-26 00:24:57,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:24:58,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:58,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 1664 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-26 00:24:58,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:24:58,967 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-11-26 00:24:58,970 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:24:58,970 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:24:58,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1525264973] [2022-11-26 00:24:58,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1525264973] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:58,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:24:58,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:24:58,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038361790] [2022-11-26 00:24:58,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:58,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:24:58,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:24:58,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:24:58,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:24:58,976 INFO L87 Difference]: Start difference. First operand 441 states and 629 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-26 00:25:01,296 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 [] [2022-11-26 00:25:01,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:25:01,816 INFO L93 Difference]: Finished difference Result 848 states and 1227 transitions. [2022-11-26 00:25:01,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:25:01,817 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 156 [2022-11-26 00:25:01,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:25:01,823 INFO L225 Difference]: With dead ends: 848 [2022-11-26 00:25:01,823 INFO L226 Difference]: Without dead ends: 443 [2022-11-26 00:25:01,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:25:01,827 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 36 mSDsluCounter, 1721 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 2325 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:25:01,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 2325 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-11-26 00:25:01,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-11-26 00:25:01,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2022-11-26 00:25:01,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 254 states have (on average 1.2283464566929134) internal successors, (312), 258 states have internal predecessors, (312), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (172), 158 states have call predecessors, (172), 158 states have call successors, (172) [2022-11-26 00:25:01,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 644 transitions. [2022-11-26 00:25:01,864 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 644 transitions. Word has length 156 [2022-11-26 00:25:01,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:25:01,865 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 644 transitions. [2022-11-26 00:25:01,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-26 00:25:01,865 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 644 transitions. [2022-11-26 00:25:01,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-26 00:25:01,868 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:25:01,869 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2022-11-26 00:25:01,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:25:02,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:25:02,091 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:25:02,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:25:02,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1065029687, now seen corresponding path program 1 times [2022-11-26 00:25:02,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:25:02,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [535263668] [2022-11-26 00:25:02,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:25:02,095 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 [2022-11-26 00:25:02,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:25:02,132 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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) [2022-11-26 00:25:02,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:25:03,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:25:03,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 1694 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-26 00:25:03,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:25:03,618 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-11-26 00:25:03,619 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:25:03,619 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:25:03,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [535263668] [2022-11-26 00:25:03,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [535263668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:25:03,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:25:03,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:25:03,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224657386] [2022-11-26 00:25:03,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:25:03,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:25:03,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:25:03,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:25:03,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:25:03,622 INFO L87 Difference]: Start difference. First operand 443 states and 644 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-26 00:25:06,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:25:07,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:25:07,507 INFO L93 Difference]: Finished difference Result 871 states and 1300 transitions. [2022-11-26 00:25:07,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:25:07,508 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 164 [2022-11-26 00:25:07,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:25:07,513 INFO L225 Difference]: With dead ends: 871 [2022-11-26 00:25:07,514 INFO L226 Difference]: Without dead ends: 464 [2022-11-26 00:25:07,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:25:07,551 INFO L413 NwaCegarLoop]: 582 mSDtfsCounter, 88 mSDsluCounter, 2777 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 3359 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:25:07,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 3359 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 343 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-11-26 00:25:07,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-11-26 00:25:07,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 462. [2022-11-26 00:25:07,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 270 states have (on average 1.237037037037037) internal successors, (334), 274 states have internal predecessors, (334), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (191), 161 states have call predecessors, (191), 160 states have call successors, (191) [2022-11-26 00:25:07,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 687 transitions. [2022-11-26 00:25:07,602 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 687 transitions. Word has length 164 [2022-11-26 00:25:07,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:25:07,603 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 687 transitions. [2022-11-26 00:25:07,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-26 00:25:07,604 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 687 transitions. [2022-11-26 00:25:07,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-11-26 00:25:07,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:25:07,609 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 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] [2022-11-26 00:25:07,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:25:07,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:25:07,832 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:25:07,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:25:07,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1857914875, now seen corresponding path program 1 times [2022-11-26 00:25:07,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:25:07,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1091764460] [2022-11-26 00:25:07,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:25:07,834 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 [2022-11-26 00:25:07,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:25:07,835 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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) [2022-11-26 00:25:07,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:25:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:25:09,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 1806 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-26 00:25:09,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:25:09,595 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-11-26 00:25:09,596 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:25:09,596 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:25:09,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1091764460] [2022-11-26 00:25:09,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1091764460] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:25:09,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:25:09,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-26 00:25:09,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602642383] [2022-11-26 00:25:09,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:25:09,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:25:09,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:25:09,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:25:09,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:25:09,600 INFO L87 Difference]: Start difference. First operand 462 states and 687 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-26 00:25:12,338 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 [] [2022-11-26 00:25:13,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:25:13,400 INFO L93 Difference]: Finished difference Result 896 states and 1375 transitions. [2022-11-26 00:25:13,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:25:13,401 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 179 [2022-11-26 00:25:13,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:25:13,406 INFO L225 Difference]: With dead ends: 896 [2022-11-26 00:25:13,406 INFO L226 Difference]: Without dead ends: 470 [2022-11-26 00:25:13,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:25:13,411 INFO L413 NwaCegarLoop]: 598 mSDtfsCounter, 59 mSDsluCounter, 2264 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 2862 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 [2022-11-26 00:25:13,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 2862 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 268 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-11-26 00:25:13,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2022-11-26 00:25:13,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 462. [2022-11-26 00:25:13,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 270 states have (on average 1.237037037037037) internal successors, (334), 274 states have internal predecessors, (334), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (191), 161 states have call predecessors, (191), 160 states have call successors, (191) [2022-11-26 00:25:13,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 687 transitions. [2022-11-26 00:25:13,442 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 687 transitions. Word has length 179 [2022-11-26 00:25:13,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:25:13,443 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 687 transitions. [2022-11-26 00:25:13,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-26 00:25:13,443 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 687 transitions. [2022-11-26 00:25:13,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-26 00:25:13,446 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:25:13,447 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:25:13,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:25:13,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:25:13,664 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:25:13,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:25:13,664 INFO L85 PathProgramCache]: Analyzing trace with hash -276070034, now seen corresponding path program 1 times [2022-11-26 00:25:13,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:25:13,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [953863384] [2022-11-26 00:25:13,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:25:13,667 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 [2022-11-26 00:25:13,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:25:13,668 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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) [2022-11-26 00:25:13,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:25:15,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:25:15,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 1854 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-26 00:25:15,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:25:15,679 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-11-26 00:25:15,679 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:25:15,680 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:25:15,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [953863384] [2022-11-26 00:25:15,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [953863384] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:25:15,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:25:15,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-26 00:25:15,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695105389] [2022-11-26 00:25:15,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:25:15,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:25:15,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:25:15,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:25:15,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:25:15,683 INFO L87 Difference]: Start difference. First operand 462 states and 687 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2022-11-26 00:25:19,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:25:20,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:25:20,995 INFO L93 Difference]: Finished difference Result 918 states and 1394 transitions. [2022-11-26 00:25:20,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-26 00:25:20,996 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 195 [2022-11-26 00:25:20,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:25:21,000 INFO L225 Difference]: With dead ends: 918 [2022-11-26 00:25:21,000 INFO L226 Difference]: Without dead ends: 492 [2022-11-26 00:25:21,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-26 00:25:21,004 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 131 mSDsluCounter, 3315 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 3898 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:25:21,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 3898 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 587 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-11-26 00:25:21,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-11-26 00:25:21,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 474. [2022-11-26 00:25:21,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 280 states have (on average 1.2428571428571429) internal successors, (348), 284 states have internal predecessors, (348), 163 states have call successors, (163), 28 states have call predecessors, (163), 29 states have return successors, (192), 162 states have call predecessors, (192), 161 states have call successors, (192) [2022-11-26 00:25:21,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 703 transitions. [2022-11-26 00:25:21,040 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 703 transitions. Word has length 195 [2022-11-26 00:25:21,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:25:21,041 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 703 transitions. [2022-11-26 00:25:21,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2022-11-26 00:25:21,041 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 703 transitions. [2022-11-26 00:25:21,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-11-26 00:25:21,045 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:25:21,045 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2022-11-26 00:25:21,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:25:21,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:25:21,268 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:25:21,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:25:21,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1136665260, now seen corresponding path program 2 times [2022-11-26 00:25:21,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:25:21,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1996530581] [2022-11-26 00:25:21,270 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-26 00:25:21,270 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 [2022-11-26 00:25:21,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:25:21,271 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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) [2022-11-26 00:25:21,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:25:23,515 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-26 00:25:23,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:25:23,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 1966 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-26 00:25:23,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:25:24,404 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-11-26 00:25:24,405 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:25:24,405 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:25:24,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1996530581] [2022-11-26 00:25:24,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1996530581] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:25:24,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:25:24,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-26 00:25:24,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866920615] [2022-11-26 00:25:24,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:25:24,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:25:24,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:25:24,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:25:24,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:25:24,408 INFO L87 Difference]: Start difference. First operand 474 states and 703 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-26 00:25:29,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:25:31,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:25:33,258 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 [] [2022-11-26 00:25:37,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:25:37,088 INFO L93 Difference]: Finished difference Result 948 states and 1468 transitions. [2022-11-26 00:25:37,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 00:25:37,091 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 210 [2022-11-26 00:25:37,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:25:37,095 INFO L225 Difference]: With dead ends: 948 [2022-11-26 00:25:37,096 INFO L226 Difference]: Without dead ends: 510 [2022-11-26 00:25:37,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:25:37,101 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 23 mSDsluCounter, 2329 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2969 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:25:37,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2969 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 264 Invalid, 3 Unknown, 0 Unchecked, 12.0s Time] [2022-11-26 00:25:37,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2022-11-26 00:25:37,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 482. [2022-11-26 00:25:37,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 288 states have (on average 1.2430555555555556) internal successors, (358), 292 states have internal predecessors, (358), 163 states have call successors, (163), 28 states have call predecessors, (163), 29 states have return successors, (192), 162 states have call predecessors, (192), 161 states have call successors, (192) [2022-11-26 00:25:37,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 713 transitions. [2022-11-26 00:25:37,138 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 713 transitions. Word has length 210 [2022-11-26 00:25:37,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:25:37,139 INFO L495 AbstractCegarLoop]: Abstraction has 482 states and 713 transitions. [2022-11-26 00:25:37,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-26 00:25:37,140 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 713 transitions. [2022-11-26 00:25:37,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-11-26 00:25:37,143 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:25:37,143 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2022-11-26 00:25:37,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:25:37,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:25:37,368 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:25:37,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:25:37,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1018223786, now seen corresponding path program 1 times [2022-11-26 00:25:37,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:25:37,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [891181384] [2022-11-26 00:25:37,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:25:37,371 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 [2022-11-26 00:25:37,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:25:37,372 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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) [2022-11-26 00:25:37,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:25:39,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:25:39,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 1964 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-26 00:25:39,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:25:40,091 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-11-26 00:25:40,092 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:25:40,092 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:25:40,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [891181384] [2022-11-26 00:25:40,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [891181384] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:25:40,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:25:40,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:25:40,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602404855] [2022-11-26 00:25:40,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:25:40,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:25:40,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:25:40,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:25:40,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:25:40,095 INFO L87 Difference]: Start difference. First operand 482 states and 713 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-26 00:25:45,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:25:47,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:25:49,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:25:52,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:25:52,429 INFO L93 Difference]: Finished difference Result 958 states and 1478 transitions. [2022-11-26 00:25:52,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-26 00:25:52,432 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 210 [2022-11-26 00:25:52,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:25:52,436 INFO L225 Difference]: With dead ends: 958 [2022-11-26 00:25:52,437 INFO L226 Difference]: Without dead ends: 512 [2022-11-26 00:25:52,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-26 00:25:52,442 INFO L413 NwaCegarLoop]: 638 mSDtfsCounter, 20 mSDsluCounter, 2955 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 3593 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:25:52,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 3593 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 282 Invalid, 3 Unknown, 0 Unchecked, 11.4s Time] [2022-11-26 00:25:52,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2022-11-26 00:25:52,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 486. [2022-11-26 00:25:52,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 292 states have (on average 1.2397260273972603) internal successors, (362), 296 states have internal predecessors, (362), 163 states have call successors, (163), 28 states have call predecessors, (163), 29 states have return successors, (192), 162 states have call predecessors, (192), 161 states have call successors, (192) [2022-11-26 00:25:52,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 717 transitions. [2022-11-26 00:25:52,514 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 717 transitions. Word has length 210 [2022-11-26 00:25:52,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:25:52,515 INFO L495 AbstractCegarLoop]: Abstraction has 486 states and 717 transitions. [2022-11-26 00:25:52,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-26 00:25:52,515 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 717 transitions. [2022-11-26 00:25:52,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-11-26 00:25:52,518 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:25:52,519 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2022-11-26 00:25:52,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:25:52,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:25:52,720 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:25:52,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:25:52,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1243349464, now seen corresponding path program 1 times [2022-11-26 00:25:52,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:25:52,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [168580155] [2022-11-26 00:25:52,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:25:52,723 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 [2022-11-26 00:25:52,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:25:52,724 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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) [2022-11-26 00:25:52,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:25:54,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:25:54,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 1961 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-26 00:25:54,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:25:55,029 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 132 proven. 3 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-11-26 00:25:55,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:25:55,545 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2022-11-26 00:25:55,545 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:25:55,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [168580155] [2022-11-26 00:25:55,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [168580155] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:25:55,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [828698321] [2022-11-26 00:25:55,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:25:55,546 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-26 00:25:55,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-26 00:25:55,551 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-26 00:25:55,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-11-26 00:25:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:25:56,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 1961 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-26 00:25:56,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:25:57,541 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-26 00:25:57,542 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:25:57,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [828698321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:25:57,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:25:57,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 7] total 11 [2022-11-26 00:25:57,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645849786] [2022-11-26 00:25:57,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:25:57,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:25:57,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:25:57,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:25:57,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:25:57,545 INFO L87 Difference]: Start difference. First operand 486 states and 717 transitions. Second operand has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2022-11-26 00:25:59,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:26:00,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:26:00,887 INFO L93 Difference]: Finished difference Result 902 states and 1352 transitions. [2022-11-26 00:26:00,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:26:00,889 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 210 [2022-11-26 00:26:00,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:26:00,893 INFO L225 Difference]: With dead ends: 902 [2022-11-26 00:26:00,893 INFO L226 Difference]: Without dead ends: 488 [2022-11-26 00:26:00,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 630 GetRequests, 619 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-26 00:26:00,897 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 82 mSDsluCounter, 2225 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 28 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 2822 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:26:00,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 2822 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 179 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-11-26 00:26:00,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-11-26 00:26:00,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 488. [2022-11-26 00:26:00,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 293 states have (on average 1.2389078498293515) internal successors, (363), 298 states have internal predecessors, (363), 163 states have call successors, (163), 28 states have call predecessors, (163), 30 states have return successors, (203), 162 states have call predecessors, (203), 161 states have call successors, (203) [2022-11-26 00:26:00,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 729 transitions. [2022-11-26 00:26:00,930 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 729 transitions. Word has length 210 [2022-11-26 00:26:00,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:26:00,931 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 729 transitions. [2022-11-26 00:26:00,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2022-11-26 00:26:00,931 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 729 transitions. [2022-11-26 00:26:00,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-11-26 00:26:00,934 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:26:00,935 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2022-11-26 00:26:00,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2022-11-26 00:26:01,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:26:01,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:26:01,344 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:26:01,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:26:01,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1098432894, now seen corresponding path program 1 times [2022-11-26 00:26:01,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:26:01,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1288434360] [2022-11-26 00:26:01,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:26:01,347 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 [2022-11-26 00:26:01,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:26:01,348 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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) [2022-11-26 00:26:01,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:26:03,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:26:03,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 2103 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-26 00:26:03,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:26:03,738 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 174 proven. 3 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2022-11-26 00:26:03,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:26:04,237 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2022-11-26 00:26:04,237 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:26:04,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1288434360] [2022-11-26 00:26:04,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1288434360] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:26:04,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [724649865] [2022-11-26 00:26:04,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:26:04,238 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-26 00:26:04,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-26 00:26:04,240 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-26 00:26:04,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2022-11-26 00:26:05,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:26:05,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 2103 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-26 00:26:05,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:26:06,563 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-11-26 00:26:06,563 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:26:06,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [724649865] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:26:06,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:26:06,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7, 7] total 12 [2022-11-26 00:26:06,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063153112] [2022-11-26 00:26:06,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:26:06,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:26:06,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:26:06,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:26:06,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-26 00:26:06,565 INFO L87 Difference]: Start difference. First operand 488 states and 729 transitions. Second operand has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 5 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2022-11-26 00:26:09,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:26:10,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:26:10,875 INFO L93 Difference]: Finished difference Result 907 states and 1377 transitions. [2022-11-26 00:26:10,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 00:26:10,876 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 5 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) Word has length 233 [2022-11-26 00:26:10,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:26:10,881 INFO L225 Difference]: With dead ends: 907 [2022-11-26 00:26:10,881 INFO L226 Difference]: Without dead ends: 491 [2022-11-26 00:26:10,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 703 GetRequests, 689 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:26:10,885 INFO L413 NwaCegarLoop]: 591 mSDtfsCounter, 105 mSDsluCounter, 2751 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 33 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 3342 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:26:10,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 3342 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 332 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-11-26 00:26:10,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-11-26 00:26:10,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 489. [2022-11-26 00:26:10,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 294 states have (on average 1.2380952380952381) internal successors, (364), 299 states have internal predecessors, (364), 163 states have call successors, (163), 28 states have call predecessors, (163), 30 states have return successors, (203), 162 states have call predecessors, (203), 161 states have call successors, (203) [2022-11-26 00:26:10,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 730 transitions. [2022-11-26 00:26:10,916 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 730 transitions. Word has length 233 [2022-11-26 00:26:10,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:26:10,917 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 730 transitions. [2022-11-26 00:26:10,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 5 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2022-11-26 00:26:10,918 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 730 transitions. [2022-11-26 00:26:10,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-11-26 00:26:10,919 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:26:10,920 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2022-11-26 00:26:10,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2022-11-26 00:26:11,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:26:11,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:26:11,340 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:26:11,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:26:11,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1232370673, now seen corresponding path program 1 times [2022-11-26 00:26:11,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:26:11,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1203093056] [2022-11-26 00:26:11,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:26:11,343 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 [2022-11-26 00:26:11,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:26:11,343 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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) [2022-11-26 00:26:11,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:26:13,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:26:13,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 2258 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-26 00:26:13,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:26:13,842 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 224 proven. 3 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2022-11-26 00:26:13,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:26:14,329 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 411 trivial. 0 not checked. [2022-11-26 00:26:14,329 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:26:14,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1203093056] [2022-11-26 00:26:14,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1203093056] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:26:14,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2071328609] [2022-11-26 00:26:14,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:26:14,330 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-26 00:26:14,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-26 00:26:14,332 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-26 00:26:14,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2022-11-26 00:26:15,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:26:16,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 2258 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-26 00:26:16,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:26:16,270 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2022-11-26 00:26:16,270 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:26:16,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2071328609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:26:16,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:26:16,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 7] total 10 [2022-11-26 00:26:16,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099365518] [2022-11-26 00:26:16,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:26:16,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:26:16,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:26:16,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:26:16,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:26:16,273 INFO L87 Difference]: Start difference. First operand 489 states and 730 transitions. Second operand has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-26 00:26:17,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:26:17,402 INFO L93 Difference]: Finished difference Result 903 states and 1358 transitions. [2022-11-26 00:26:17,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:26:17,403 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) Word has length 264 [2022-11-26 00:26:17,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:26:17,408 INFO L225 Difference]: With dead ends: 903 [2022-11-26 00:26:17,408 INFO L226 Difference]: Without dead ends: 489 [2022-11-26 00:26:17,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 790 GetRequests, 781 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:26:17,411 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 2 mSDsluCounter, 1684 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2274 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:26:17,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2274 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-26 00:26:17,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2022-11-26 00:26:17,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2022-11-26 00:26:17,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 294 states have (on average 1.2346938775510203) internal successors, (363), 299 states have internal predecessors, (363), 163 states have call successors, (163), 28 states have call predecessors, (163), 30 states have return successors, (203), 162 states have call predecessors, (203), 161 states have call successors, (203) [2022-11-26 00:26:17,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 729 transitions. [2022-11-26 00:26:17,440 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 729 transitions. Word has length 264 [2022-11-26 00:26:17,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:26:17,441 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 729 transitions. [2022-11-26 00:26:17,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-26 00:26:17,442 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 729 transitions. [2022-11-26 00:26:17,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-11-26 00:26:17,444 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:26:17,444 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2022-11-26 00:26:17,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2022-11-26 00:26:17,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:26:17,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:26:17,856 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:26:17,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:26:17,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1480517167, now seen corresponding path program 1 times [2022-11-26 00:26:17,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:26:17,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [129906926] [2022-11-26 00:26:17,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:26:17,858 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 [2022-11-26 00:26:17,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:26:17,859 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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) [2022-11-26 00:26:17,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:26:19,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:26:20,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 2260 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-26 00:26:20,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:26:20,449 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 224 proven. 3 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2022-11-26 00:26:20,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:26:20,899 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 411 trivial. 0 not checked. [2022-11-26 00:26:20,899 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:26:20,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [129906926] [2022-11-26 00:26:20,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [129906926] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:26:20,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1359003201] [2022-11-26 00:26:20,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:26:20,900 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-26 00:26:20,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-26 00:26:20,908 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-26 00:26:20,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2022-11-26 00:26:22,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:26:22,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 2260 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-26 00:26:22,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:26:23,590 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2022-11-26 00:26:23,590 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:26:23,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1359003201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:26:23,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:26:23,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7, 7] total 13 [2022-11-26 00:26:23,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992614935] [2022-11-26 00:26:23,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:26:23,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:26:23,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:26:23,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:26:23,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-11-26 00:26:23,595 INFO L87 Difference]: Start difference. First operand 489 states and 729 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 5 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2022-11-26 00:26:26,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:26:27,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:26:27,839 INFO L93 Difference]: Finished difference Result 910 states and 1369 transitions. [2022-11-26 00:26:27,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 00:26:27,840 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 5 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 264 [2022-11-26 00:26:27,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:26:27,845 INFO L225 Difference]: With dead ends: 910 [2022-11-26 00:26:27,845 INFO L226 Difference]: Without dead ends: 501 [2022-11-26 00:26:27,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 793 GetRequests, 779 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:26:27,849 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 76 mSDsluCounter, 3357 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 32 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 3947 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:26:27,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 3947 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-11-26 00:26:27,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2022-11-26 00:26:27,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2022-11-26 00:26:27,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 300 states have (on average 1.2333333333333334) internal successors, (370), 305 states have internal predecessors, (370), 168 states have call successors, (168), 29 states have call predecessors, (168), 31 states have return successors, (208), 167 states have call predecessors, (208), 166 states have call successors, (208) [2022-11-26 00:26:27,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 746 transitions. [2022-11-26 00:26:27,906 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 746 transitions. Word has length 264 [2022-11-26 00:26:27,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:26:27,906 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 746 transitions. [2022-11-26 00:26:27,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 5 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2022-11-26 00:26:27,907 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 746 transitions. [2022-11-26 00:26:27,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2022-11-26 00:26:27,909 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:26:27,909 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2022-11-26 00:26:27,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2022-11-26 00:26:28,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:26:28,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:26:28,330 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:26:28,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:26:28,331 INFO L85 PathProgramCache]: Analyzing trace with hash -848747523, now seen corresponding path program 1 times [2022-11-26 00:26:28,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:26:28,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2086948897] [2022-11-26 00:26:28,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:26:28,335 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 [2022-11-26 00:26:28,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:26:28,335 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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) [2022-11-26 00:26:28,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:26:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:26:30,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 2484 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-26 00:26:30,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:26:31,124 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 284 proven. 3 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2022-11-26 00:26:31,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:26:31,656 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2022-11-26 00:26:31,656 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:26:31,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2086948897] [2022-11-26 00:26:31,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2086948897] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:26:31,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1067511191] [2022-11-26 00:26:31,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:26:31,657 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-26 00:26:31,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-26 00:26:31,658 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-26 00:26:31,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2022-11-26 00:26:36,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:26:36,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 2484 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-26 00:26:36,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:26:39,990 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 267 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2022-11-26 00:26:39,990 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:26:39,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1067511191] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:26:39,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:26:39,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [7, 7] total 17 [2022-11-26 00:26:39,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14448817] [2022-11-26 00:26:39,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:26:39,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-26 00:26:39,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:26:39,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-26 00:26:39,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2022-11-26 00:26:39,995 INFO L87 Difference]: Start difference. First operand 501 states and 746 transitions. Second operand has 12 states, 11 states have (on average 10.0) internal successors, (110), 12 states have internal predecessors, (110), 7 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) [2022-11-26 00:26:47,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:26:53,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:26:53,078 INFO L93 Difference]: Finished difference Result 1022 states and 1607 transitions. [2022-11-26 00:26:53,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-26 00:26:53,080 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.0) internal successors, (110), 12 states have internal predecessors, (110), 7 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) Word has length 294 [2022-11-26 00:26:53,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:26:53,085 INFO L225 Difference]: With dead ends: 1022 [2022-11-26 00:26:53,086 INFO L226 Difference]: Without dead ends: 557 [2022-11-26 00:26:53,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 887 GetRequests, 866 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:26:53,090 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 114 mSDsluCounter, 3277 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 3867 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:26:53,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 3867 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 910 Invalid, 1 Unknown, 0 Unchecked, 11.5s Time] [2022-11-26 00:26:53,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-11-26 00:26:53,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 523. [2022-11-26 00:26:53,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 320 states have (on average 1.2375) internal successors, (396), 325 states have internal predecessors, (396), 168 states have call successors, (168), 29 states have call predecessors, (168), 33 states have return successors, (227), 169 states have call predecessors, (227), 166 states have call successors, (227) [2022-11-26 00:26:53,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 791 transitions. [2022-11-26 00:26:53,125 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 791 transitions. Word has length 294 [2022-11-26 00:26:53,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:26:53,125 INFO L495 AbstractCegarLoop]: Abstraction has 523 states and 791 transitions. [2022-11-26 00:26:53,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.0) internal successors, (110), 12 states have internal predecessors, (110), 7 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) [2022-11-26 00:26:53,126 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 791 transitions. [2022-11-26 00:26:53,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-11-26 00:26:53,128 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:26:53,128 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2022-11-26 00:26:53,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:26:53,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2022-11-26 00:26:53,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt [2022-11-26 00:26:53,544 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:26:53,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:26:53,544 INFO L85 PathProgramCache]: Analyzing trace with hash 453557913, now seen corresponding path program 1 times [2022-11-26 00:26:53,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:26:53,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1592543206] [2022-11-26 00:26:53,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:26:53,546 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 [2022-11-26 00:26:53,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:26:53,547 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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) [2022-11-26 00:26:53,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-26 00:26:55,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:26:55,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 2262 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-26 00:26:55,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:26:55,909 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-11-26 00:26:55,910 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:26:55,910 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:26:55,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1592543206] [2022-11-26 00:26:55,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1592543206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:26:55,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:26:55,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:26:55,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310204335] [2022-11-26 00:26:55,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:26:55,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:26:55,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:26:55,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:26:55,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:26:55,912 INFO L87 Difference]: Start difference. First operand 523 states and 791 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-26 00:26:56,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:26:56,118 INFO L93 Difference]: Finished difference Result 1038 states and 1632 transitions. [2022-11-26 00:26:56,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:26:56,119 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 264 [2022-11-26 00:26:56,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:26:56,124 INFO L225 Difference]: With dead ends: 1038 [2022-11-26 00:26:56,124 INFO L226 Difference]: Without dead ends: 551 [2022-11-26 00:26:56,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:26:56,128 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 8 mSDsluCounter, 1929 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2580 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:26:56,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2580 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:26:56,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2022-11-26 00:26:56,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 539. [2022-11-26 00:26:56,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 336 states have (on average 1.2380952380952381) internal successors, (416), 341 states have internal predecessors, (416), 168 states have call successors, (168), 29 states have call predecessors, (168), 33 states have return successors, (227), 169 states have call predecessors, (227), 166 states have call successors, (227) [2022-11-26 00:26:56,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 811 transitions. [2022-11-26 00:26:56,164 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 811 transitions. Word has length 264 [2022-11-26 00:26:56,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:26:56,164 INFO L495 AbstractCegarLoop]: Abstraction has 539 states and 811 transitions. [2022-11-26 00:26:56,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-26 00:26:56,165 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 811 transitions. [2022-11-26 00:26:56,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-11-26 00:26:56,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:26:56,167 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:26:56,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-26 00:26:56,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:26:56,388 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:26:56,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:26:56,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1018872225, now seen corresponding path program 1 times [2022-11-26 00:26:56,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:26:56,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [195956899] [2022-11-26 00:26:56,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:26:56,391 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 [2022-11-26 00:26:56,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:26:56,392 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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) [2022-11-26 00:26:56,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:26:58,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:26:58,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 2369 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:26:58,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:26:58,735 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 218 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2022-11-26 00:26:58,735 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:26:58,735 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:26:58,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [195956899] [2022-11-26 00:26:58,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [195956899] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:26:58,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:26:58,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:26:58,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773666798] [2022-11-26 00:26:58,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:26:58,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:26:58,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:26:58,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:26:58,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:26:58,738 INFO L87 Difference]: Start difference. First operand 539 states and 811 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-26 00:26:58,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:26:58,922 INFO L93 Difference]: Finished difference Result 1042 states and 1657 transitions. [2022-11-26 00:26:58,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:26:58,925 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 279 [2022-11-26 00:26:58,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:26:58,929 INFO L225 Difference]: With dead ends: 1042 [2022-11-26 00:26:58,929 INFO L226 Difference]: Without dead ends: 539 [2022-11-26 00:26:58,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:26:58,934 INFO L413 NwaCegarLoop]: 632 mSDtfsCounter, 7 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1876 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 [2022-11-26 00:26:58,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1876 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:26:58,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2022-11-26 00:26:58,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2022-11-26 00:26:58,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 336 states have (on average 1.2321428571428572) internal successors, (414), 341 states have internal predecessors, (414), 168 states have call successors, (168), 29 states have call predecessors, (168), 33 states have return successors, (227), 169 states have call predecessors, (227), 166 states have call successors, (227) [2022-11-26 00:26:58,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 809 transitions. [2022-11-26 00:26:58,972 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 809 transitions. Word has length 279 [2022-11-26 00:26:58,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:26:58,973 INFO L495 AbstractCegarLoop]: Abstraction has 539 states and 809 transitions. [2022-11-26 00:26:58,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-26 00:26:58,973 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 809 transitions. [2022-11-26 00:26:58,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2022-11-26 00:26:58,976 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:26:58,976 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2022-11-26 00:26:59,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:26:59,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:26:59,192 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:26:59,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:26:59,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1230298429, now seen corresponding path program 1 times [2022-11-26 00:26:59,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:26:59,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1946577495] [2022-11-26 00:26:59,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:26:59,195 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 [2022-11-26 00:26:59,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:26:59,197 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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) [2022-11-26 00:26:59,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:27:01,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:27:01,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 2376 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-26 00:27:01,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:27:02,180 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 254 proven. 3 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2022-11-26 00:27:02,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:27:02,693 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 471 trivial. 0 not checked. [2022-11-26 00:27:02,693 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:27:02,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1946577495] [2022-11-26 00:27:02,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1946577495] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:27:02,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2001770561] [2022-11-26 00:27:02,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:27:02,694 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-26 00:27:02,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-26 00:27:02,695 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-26 00:27:02,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2022-11-26 00:27:04,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:27:04,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 2376 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-26 00:27:04,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:27:05,787 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 270 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-11-26 00:27:05,787 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:27:05,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2001770561] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:27:05,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:27:05,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7, 7] total 14 [2022-11-26 00:27:05,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778328753] [2022-11-26 00:27:05,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:27:05,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-26 00:27:05,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:27:05,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-26 00:27:05,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:27:05,791 INFO L87 Difference]: Start difference. First operand 539 states and 809 transitions. Second operand has 9 states, 8 states have (on average 14.75) internal successors, (118), 9 states have internal predecessors, (118), 6 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 5 states have call predecessors, (30), 6 states have call successors, (30) [2022-11-26 00:27:09,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:27:12,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:27:12,340 INFO L93 Difference]: Finished difference Result 1008 states and 1533 transitions. [2022-11-26 00:27:12,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-26 00:27:12,341 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.75) internal successors, (118), 9 states have internal predecessors, (118), 6 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 5 states have call predecessors, (30), 6 states have call successors, (30) Word has length 281 [2022-11-26 00:27:12,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:27:12,345 INFO L225 Difference]: With dead ends: 1008 [2022-11-26 00:27:12,345 INFO L226 Difference]: Without dead ends: 541 [2022-11-26 00:27:12,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 849 GetRequests, 832 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-11-26 00:27:12,349 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 175 mSDsluCounter, 3758 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 4333 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:27:12,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 4333 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 717 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-11-26 00:27:12,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2022-11-26 00:27:12,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 536. [2022-11-26 00:27:12,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 334 states have (on average 1.2335329341317365) internal successors, (412), 338 states have internal predecessors, (412), 168 states have call successors, (168), 29 states have call predecessors, (168), 32 states have return successors, (213), 169 states have call predecessors, (213), 166 states have call successors, (213) [2022-11-26 00:27:12,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 793 transitions. [2022-11-26 00:27:12,379 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 793 transitions. Word has length 281 [2022-11-26 00:27:12,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:27:12,380 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 793 transitions. [2022-11-26 00:27:12,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.75) internal successors, (118), 9 states have internal predecessors, (118), 6 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 5 states have call predecessors, (30), 6 states have call successors, (30) [2022-11-26 00:27:12,380 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 793 transitions. [2022-11-26 00:27:12,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-11-26 00:27:12,382 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:27:12,383 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2022-11-26 00:27:12,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:27:12,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2022-11-26 00:27:12,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt [2022-11-26 00:27:12,808 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:27:12,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:27:12,808 INFO L85 PathProgramCache]: Analyzing trace with hash 630543217, now seen corresponding path program 1 times [2022-11-26 00:27:12,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:27:12,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1547968483] [2022-11-26 00:27:12,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:27:12,811 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 [2022-11-26 00:27:12,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:27:12,812 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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) [2022-11-26 00:27:12,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:27:15,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:27:15,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 2492 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-26 00:27:15,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:27:15,732 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 286 proven. 3 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2022-11-26 00:27:15,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:27:16,267 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2022-11-26 00:27:16,267 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:27:16,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1547968483] [2022-11-26 00:27:16,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1547968483] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:27:16,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1842283200] [2022-11-26 00:27:16,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:27:16,267 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-26 00:27:16,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-26 00:27:16,268 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-26 00:27:16,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2022-11-26 00:27:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:27:29,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 2492 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-26 00:27:29,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:27:29,959 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 286 proven. 3 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2022-11-26 00:27:29,959 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:27:30,437 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2022-11-26 00:27:30,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1842283200] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:27:30,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183935099] [2022-11-26 00:27:30,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:27:30,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:27:30,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:27:30,439 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:27:30,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-11-26 00:27:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:27:32,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 2492 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-26 00:27:32,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:27:33,048 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 286 proven. 3 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2022-11-26 00:27:33,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:27:33,702 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2022-11-26 00:27:33,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183935099] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:27:33,703 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-26 00:27:33,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 7 [2022-11-26 00:27:33,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051851907] [2022-11-26 00:27:33,704 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-26 00:27:33,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:27:33,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:27:33,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:27:33,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:27:33,706 INFO L87 Difference]: Start difference. First operand 536 states and 793 transitions. Second operand has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 6 states have internal predecessors, (122), 3 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2022-11-26 00:27:35,898 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 [] [2022-11-26 00:27:36,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:27:36,076 INFO L93 Difference]: Finished difference Result 1022 states and 1529 transitions. [2022-11-26 00:27:36,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:27:36,077 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 6 states have internal predecessors, (122), 3 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) Word has length 298 [2022-11-26 00:27:36,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:27:36,081 INFO L225 Difference]: With dead ends: 1022 [2022-11-26 00:27:36,082 INFO L226 Difference]: Without dead ends: 553 [2022-11-26 00:27:36,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1782 GetRequests, 1777 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:27:36,085 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 8 mSDsluCounter, 3119 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 3748 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:27:36,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 3748 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-11-26 00:27:36,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-11-26 00:27:36,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 551. [2022-11-26 00:27:36,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 345 states have (on average 1.2347826086956522) internal successors, (426), 349 states have internal predecessors, (426), 171 states have call successors, (171), 29 states have call predecessors, (171), 33 states have return successors, (223), 173 states have call predecessors, (223), 169 states have call successors, (223) [2022-11-26 00:27:36,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 820 transitions. [2022-11-26 00:27:36,117 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 820 transitions. Word has length 298 [2022-11-26 00:27:36,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:27:36,117 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 820 transitions. [2022-11-26 00:27:36,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 6 states have internal predecessors, (122), 3 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2022-11-26 00:27:36,118 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 820 transitions. [2022-11-26 00:27:36,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-11-26 00:27:36,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:27:36,120 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2022-11-26 00:27:36,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:27:36,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-11-26 00:27:36,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2022-11-26 00:27:36,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt [2022-11-26 00:27:36,744 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:27:36,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:27:36,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1770090193, now seen corresponding path program 1 times [2022-11-26 00:27:36,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:27:36,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [824071721] [2022-11-26 00:27:36,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:27:36,747 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:27:36,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:27:36,750 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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) [2022-11-26 00:27:36,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-26 00:27:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:27:39,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 2490 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-26 00:27:39,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:27:39,921 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 306 proven. 3 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2022-11-26 00:27:39,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:27:40,754 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 12 proven. 21 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2022-11-26 00:27:40,755 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:27:40,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [824071721] [2022-11-26 00:27:40,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [824071721] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:27:40,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [23660171] [2022-11-26 00:27:40,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:27:40,756 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-26 00:27:40,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-26 00:27:40,760 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-26 00:27:40,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2022-11-26 00:27:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:27:43,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 2490 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-26 00:27:43,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:27:43,110 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 306 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-11-26 00:27:43,110 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:27:43,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [23660171] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:27:43,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:27:43,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9, 9] total 10 [2022-11-26 00:27:43,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950916807] [2022-11-26 00:27:43,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:27:43,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:27:43,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:27:43,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:27:43,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:27:43,113 INFO L87 Difference]: Start difference. First operand 551 states and 820 transitions. Second operand has 5 states, 4 states have (on average 30.5) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 2 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-26 00:27:45,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:27:46,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:27:46,405 INFO L93 Difference]: Finished difference Result 1020 states and 1525 transitions. [2022-11-26 00:27:46,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:27:46,407 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 30.5) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 2 states have call predecessors, (30), 3 states have call successors, (30) Word has length 298 [2022-11-26 00:27:46,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:27:46,411 INFO L225 Difference]: With dead ends: 1020 [2022-11-26 00:27:46,411 INFO L226 Difference]: Without dead ends: 539 [2022-11-26 00:27:46,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 892 GetRequests, 883 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:27:46,415 INFO L413 NwaCegarLoop]: 589 mSDtfsCounter, 2 mSDsluCounter, 1681 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:27:46,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2270 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-11-26 00:27:46,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2022-11-26 00:27:46,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2022-11-26 00:27:46,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 336 states have (on average 1.2291666666666667) internal successors, (413), 341 states have internal predecessors, (413), 168 states have call successors, (168), 29 states have call predecessors, (168), 33 states have return successors, (216), 169 states have call predecessors, (216), 166 states have call successors, (216) [2022-11-26 00:27:46,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 797 transitions. [2022-11-26 00:27:46,446 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 797 transitions. Word has length 298 [2022-11-26 00:27:46,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:27:46,447 INFO L495 AbstractCegarLoop]: Abstraction has 539 states and 797 transitions. [2022-11-26 00:27:46,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 30.5) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 2 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-26 00:27:46,447 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 797 transitions. [2022-11-26 00:27:46,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2022-11-26 00:27:46,449 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:27:46,450 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 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, 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] [2022-11-26 00:27:46,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-11-26 00:27:46,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (27)] Forceful destruction successful, exit code 0 [2022-11-26 00:27:46,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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=3,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt [2022-11-26 00:27:46,864 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:27:46,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:27:46,864 INFO L85 PathProgramCache]: Analyzing trace with hash 449559037, now seen corresponding path program 1 times [2022-11-26 00:27:46,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:27:46,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [950743866] [2022-11-26 00:27:46,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:27:46,867 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 [2022-11-26 00:27:46,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:27:46,868 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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) [2022-11-26 00:27:46,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 (28)] Waiting until timeout for monitored process [2022-11-26 00:27:49,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:27:49,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 2516 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-26 00:27:49,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:27:50,266 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2022-11-26 00:27:50,266 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:27:50,266 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:27:50,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [950743866] [2022-11-26 00:27:50,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [950743866] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:27:50,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:27:50,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-26 00:27:50,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101420114] [2022-11-26 00:27:50,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:27:50,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:27:50,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:27:50,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:27:50,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:27:50,270 INFO L87 Difference]: Start difference. First operand 539 states and 797 transitions. Second operand has 8 states, 8 states have (on average 16.125) internal successors, (129), 7 states have internal predecessors, (129), 3 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-26 00:27:52,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:27:52,305 INFO L93 Difference]: Finished difference Result 1042 states and 1545 transitions. [2022-11-26 00:27:52,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 00:27:52,306 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.125) internal successors, (129), 7 states have internal predecessors, (129), 3 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 3 states have call successors, (32) Word has length 309 [2022-11-26 00:27:52,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:27:52,309 INFO L225 Difference]: With dead ends: 1042 [2022-11-26 00:27:52,309 INFO L226 Difference]: Without dead ends: 539 [2022-11-26 00:27:52,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:27:52,311 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 2 mSDsluCounter, 3417 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4002 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:27:52,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4002 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-26 00:27:52,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2022-11-26 00:27:52,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2022-11-26 00:27:52,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 336 states have (on average 1.2291666666666667) internal successors, (413), 341 states have internal predecessors, (413), 168 states have call successors, (168), 29 states have call predecessors, (168), 33 states have return successors, (215), 169 states have call predecessors, (215), 166 states have call successors, (215) [2022-11-26 00:27:52,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 796 transitions. [2022-11-26 00:27:52,340 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 796 transitions. Word has length 309 [2022-11-26 00:27:52,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:27:52,340 INFO L495 AbstractCegarLoop]: Abstraction has 539 states and 796 transitions. [2022-11-26 00:27:52,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.125) internal successors, (129), 7 states have internal predecessors, (129), 3 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-26 00:27:52,341 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 796 transitions. [2022-11-26 00:27:52,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-11-26 00:27:52,343 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:27:52,343 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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, 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] [2022-11-26 00:27:52,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 (28)] Ended with exit code 0 [2022-11-26 00:27:52,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:27:52,558 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:27:52,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:27:52,558 INFO L85 PathProgramCache]: Analyzing trace with hash 2062315077, now seen corresponding path program 1 times [2022-11-26 00:27:52,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:27:52,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1130299381] [2022-11-26 00:27:52,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:27:52,561 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 [2022-11-26 00:27:52,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:27:52,562 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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) [2022-11-26 00:27:52,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-26 00:27:54,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:27:55,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 2540 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-26 00:27:55,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:27:58,728 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_7| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_69| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_69|) (bvadd |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_7| (_ bv80 64)))))) (exists ((|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_7| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_69| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_69|) (bvadd |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_7| (_ bv80 64))))))) is different from true [2022-11-26 00:28:01,090 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_8| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_70| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_70|) (bvadd |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_8| (_ bv80 64)))))) (exists ((|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_8| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_70| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_70|) (bvadd |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_8| (_ bv80 64))))))) is different from true [2022-11-26 00:28:03,887 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_9| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_71| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_71|) (bvadd |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_9| (_ bv80 64)))))) (exists ((|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_9| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_71| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_71|) (bvadd |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_9| (_ bv80 64))))))) is different from true [2022-11-26 00:28:10,518 WARN L233 SmtUtils]: Spent 6.11s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:28:16,844 WARN L233 SmtUtils]: Spent 6.09s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:28:23,149 WARN L233 SmtUtils]: Spent 6.11s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:28:29,447 WARN L233 SmtUtils]: Spent 6.09s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:28:30,254 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 [2022-11-26 00:28:30,265 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 [2022-11-26 00:28:30,500 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 378 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 28 not checked. [2022-11-26 00:28:30,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:28:39,221 WARN L233 SmtUtils]: Spent 6.09s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:28:47,604 WARN L233 SmtUtils]: Spent 6.09s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:28:55,962 WARN L233 SmtUtils]: Spent 6.09s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:29:04,394 WARN L233 SmtUtils]: Spent 6.09s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:29:08,512 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:29:08,512 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 [2022-11-26 00:29:08,610 INFO L321 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-11-26 00:29:08,611 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 [2022-11-26 00:29:08,890 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2022-11-26 00:29:08,890 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:29:08,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1130299381] [2022-11-26 00:29:08,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1130299381] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:29:08,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1639068139] [2022-11-26 00:29:08,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:29:08,891 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-26 00:29:08,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-26 00:29:08,897 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-26 00:29:08,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2022-11-26 00:29:23,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:29:23,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 2540 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-26 00:29:23,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:29:36,172 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 17 [2022-11-26 00:29:36,183 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 21 treesize of output 13 [2022-11-26 00:29:36,219 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2022-11-26 00:29:36,219 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:29:36,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1639068139] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:29:36,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:29:36,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [18, 15] total 32 [2022-11-26 00:29:36,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943312993] [2022-11-26 00:29:36,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:29:36,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-26 00:29:36,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:29:36,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-26 00:29:36,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=726, Unknown=10, NotChecked=168, Total=992 [2022-11-26 00:29:36,223 INFO L87 Difference]: Start difference. First operand 539 states and 796 transitions. Second operand has 17 states, 17 states have (on average 7.705882352941177) internal successors, (131), 15 states have internal predecessors, (131), 7 states have call successors, (34), 3 states have call predecessors, (34), 6 states have return successors, (33), 9 states have call predecessors, (33), 7 states have call successors, (33) [2022-11-26 00:29:39,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:29:41,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:29:43,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:29:46,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:29:49,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:30:01,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:30:03,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:30:05,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:30:09,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:30:12,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:30:14,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:30:17,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:30:20,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:30:23,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:30:26,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:30:29,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:30:31,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:30:33,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:30:36,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:30:38,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:30:38,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:30:38,768 INFO L93 Difference]: Finished difference Result 1066 states and 1625 transitions. [2022-11-26 00:30:38,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-26 00:30:38,773 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 7.705882352941177) internal successors, (131), 15 states have internal predecessors, (131), 7 states have call successors, (34), 3 states have call predecessors, (34), 6 states have return successors, (33), 9 states have call predecessors, (33), 7 states have call successors, (33) Word has length 320 [2022-11-26 00:30:38,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:30:38,777 INFO L225 Difference]: With dead ends: 1066 [2022-11-26 00:30:38,777 INFO L226 Difference]: Without dead ends: 595 [2022-11-26 00:30:38,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 965 GetRequests, 921 SyntacticMatches, 6 SemanticMatches, 38 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 84.1s TimeCoverageRelationStatistics Valid=149, Invalid=1183, Unknown=12, NotChecked=216, Total=1560 [2022-11-26 00:30:38,780 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 93 mSDsluCounter, 6168 mSDsCounter, 0 mSdLazyCounter, 1234 mSolverCounterSat, 11 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 6775 SdHoareTripleChecker+Invalid, 1265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1234 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:30:38,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 6775 Invalid, 1265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1234 Invalid, 20 Unknown, 0 Unchecked, 56.0s Time] [2022-11-26 00:30:38,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-11-26 00:30:38,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 575. [2022-11-26 00:30:38,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 359 states have (on average 1.2200557103064067) internal successors, (438), 366 states have internal predecessors, (438), 175 states have call successors, (175), 33 states have call predecessors, (175), 39 states have return successors, (238), 176 states have call predecessors, (238), 173 states have call successors, (238) [2022-11-26 00:30:38,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 851 transitions. [2022-11-26 00:30:38,817 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 851 transitions. Word has length 320 [2022-11-26 00:30:38,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:30:38,818 INFO L495 AbstractCegarLoop]: Abstraction has 575 states and 851 transitions. [2022-11-26 00:30:38,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.705882352941177) internal successors, (131), 15 states have internal predecessors, (131), 7 states have call successors, (34), 3 states have call predecessors, (34), 6 states have return successors, (33), 9 states have call predecessors, (33), 7 states have call successors, (33) [2022-11-26 00:30:38,818 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 851 transitions. [2022-11-26 00:30:38,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-11-26 00:30:38,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:30:38,821 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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, 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] [2022-11-26 00:30:38,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (30)] Forceful destruction successful, exit code 0 [2022-11-26 00:30:39,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2022-11-26 00:30:39,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:30:39,236 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:30:39,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:30:39,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1845279991, now seen corresponding path program 1 times [2022-11-26 00:30:39,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:30:39,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1967940701] [2022-11-26 00:30:39,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:30:39,239 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 [2022-11-26 00:30:39,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:30:39,240 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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) [2022-11-26 00:30:39,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 (31)] Waiting until timeout for monitored process [2022-11-26 00:30:41,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:30:41,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 2554 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-26 00:30:41,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:30:42,056 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2022-11-26 00:30:42,056 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:30:42,057 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:30:42,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1967940701] [2022-11-26 00:30:42,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1967940701] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:30:42,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:30:42,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:30:42,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753330787] [2022-11-26 00:30:42,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:30:42,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:30:42,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:30:42,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:30:42,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:30:42,059 INFO L87 Difference]: Start difference. First operand 575 states and 851 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-26 00:30:42,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:30:42,338 INFO L93 Difference]: Finished difference Result 1090 states and 1670 transitions. [2022-11-26 00:30:42,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:30:42,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 325 [2022-11-26 00:30:42,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:30:42,344 INFO L225 Difference]: With dead ends: 1090 [2022-11-26 00:30:42,344 INFO L226 Difference]: Without dead ends: 580 [2022-11-26 00:30:42,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:30:42,348 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 7 mSDsluCounter, 1231 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1851 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 [2022-11-26 00:30:42,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1851 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:30:42,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2022-11-26 00:30:42,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 576. [2022-11-26 00:30:42,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 360 states have (on average 1.2194444444444446) internal successors, (439), 367 states have internal predecessors, (439), 175 states have call successors, (175), 33 states have call predecessors, (175), 39 states have return successors, (238), 176 states have call predecessors, (238), 173 states have call successors, (238) [2022-11-26 00:30:42,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 852 transitions. [2022-11-26 00:30:42,384 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 852 transitions. Word has length 325 [2022-11-26 00:30:42,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:30:42,385 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 852 transitions. [2022-11-26 00:30:42,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-26 00:30:42,385 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 852 transitions. [2022-11-26 00:30:42,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-11-26 00:30:42,387 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:30:42,388 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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, 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] [2022-11-26 00:30:42,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 (31)] Forceful destruction successful, exit code 0 [2022-11-26 00:30:42,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:30:42,604 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:30:42,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:30:42,604 INFO L85 PathProgramCache]: Analyzing trace with hash -657393294, now seen corresponding path program 1 times [2022-11-26 00:30:42,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:30:42,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [917873338] [2022-11-26 00:30:42,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:30:42,608 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 [2022-11-26 00:30:42,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:30:42,609 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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) [2022-11-26 00:30:42,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 (32)] Waiting until timeout for monitored process [2022-11-26 00:30:45,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:30:45,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 2556 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-26 00:30:45,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:30:45,748 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 325 proven. 0 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2022-11-26 00:30:45,748 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:30:45,748 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:30:45,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [917873338] [2022-11-26 00:30:45,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [917873338] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:30:45,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:30:45,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-26 00:30:45,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546529557] [2022-11-26 00:30:45,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:30:45,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-26 00:30:45,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:30:45,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-26 00:30:45,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:30:45,752 INFO L87 Difference]: Start difference. First operand 576 states and 852 transitions. Second operand has 10 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 3 states have call successors, (35), 2 states have call predecessors, (35), 5 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-26 00:30:48,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:30:48,510 INFO L93 Difference]: Finished difference Result 1098 states and 1671 transitions. [2022-11-26 00:30:48,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-26 00:30:48,511 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 3 states have call successors, (35), 2 states have call predecessors, (35), 5 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) Word has length 325 [2022-11-26 00:30:48,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:30:48,515 INFO L225 Difference]: With dead ends: 1098 [2022-11-26 00:30:48,516 INFO L226 Difference]: Without dead ends: 590 [2022-11-26 00:30:48,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-26 00:30:48,521 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 5 mSDsluCounter, 4686 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5289 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:30:48,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5289 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-26 00:30:48,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2022-11-26 00:30:48,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 583. [2022-11-26 00:30:48,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 365 states have (on average 1.2164383561643837) internal successors, (444), 373 states have internal predecessors, (444), 175 states have call successors, (175), 33 states have call predecessors, (175), 41 states have return successors, (257), 177 states have call predecessors, (257), 173 states have call successors, (257) [2022-11-26 00:30:48,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 876 transitions. [2022-11-26 00:30:48,588 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 876 transitions. Word has length 325 [2022-11-26 00:30:48,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:30:48,588 INFO L495 AbstractCegarLoop]: Abstraction has 583 states and 876 transitions. [2022-11-26 00:30:48,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 3 states have call successors, (35), 2 states have call predecessors, (35), 5 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-26 00:30:48,588 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 876 transitions. [2022-11-26 00:30:48,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2022-11-26 00:30:48,590 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:30:48,591 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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, 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] [2022-11-26 00:30:48,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 (32)] Forceful destruction successful, exit code 0 [2022-11-26 00:30:48,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 [2022-11-26 00:30:48,801 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:30:48,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:30:48,801 INFO L85 PathProgramCache]: Analyzing trace with hash -2147422091, now seen corresponding path program 1 times [2022-11-26 00:30:48,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:30:48,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [762003419] [2022-11-26 00:30:48,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:30:48,804 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 [2022-11-26 00:30:48,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:30:48,806 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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) [2022-11-26 00:30:48,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f730880d-6419-4635-9fb0-639a27db2255/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 (33)] Waiting until timeout for monitored process