./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 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/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_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8 --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 --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:53:17,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:53:17,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:53:17,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:53:17,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:53:17,661 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:53:17,662 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:53:17,664 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:53:17,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:53:17,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:53:17,668 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:53:17,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:53:17,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:53:17,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:53:17,673 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:53:17,674 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:53:17,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:53:17,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:53:17,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:53:17,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:53:17,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:53:17,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:53:17,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:53:17,689 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:53:17,692 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:53:17,693 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:53:17,693 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:53:17,694 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:53:17,694 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:53:17,696 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:53:17,696 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:53:17,697 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:53:17,698 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:53:17,703 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:53:17,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:53:17,705 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:53:17,706 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:53:17,707 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:53:17,707 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:53:17,708 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:53:17,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:53:17,710 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 00:53:17,756 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:53:17,756 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:53:17,757 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:53:17,758 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:53:17,758 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:53:17,758 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:53:17,758 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 00:53:17,759 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:53:17,767 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:53:17,767 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 00:53:17,768 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 00:53:17,768 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:53:17,769 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 00:53:17,769 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 00:53:17,769 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 00:53:17,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:53:17,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 00:53:17,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:53:17,770 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:53:17,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:53:17,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:53:17,771 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:53:17,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:53:17,771 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:53:17,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:53:17,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:53:17,772 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:53:17,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:53:17,773 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:53:17,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:53:17,775 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:53:17,775 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 00:53:17,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 00:53:17,776 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:53:17,776 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:53:17,776 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:53:17,776 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ebada516f0ccae5e55b91f6e0fe5802f70171054dc79c047f46877ad506c65e [2021-11-07 00:53:18,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:53:18,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:53:18,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:53:18,102 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:53:18,106 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:53:18,107 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i [2021-11-07 00:53:18,191 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/data/a35c9f3d5/c7231e392f0543699142d8ea812120e8/FLAG43a4c11da [2021-11-07 00:53:19,071 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:53:19,071 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i [2021-11-07 00:53:19,112 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/data/a35c9f3d5/c7231e392f0543699142d8ea812120e8/FLAG43a4c11da [2021-11-07 00:53:19,577 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/data/a35c9f3d5/c7231e392f0543699142d8ea812120e8 [2021-11-07 00:53:19,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:53:19,581 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:53:19,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:53:19,583 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:53:19,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:53:19,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:19" (1/1) ... [2021-11-07 00:53:19,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@778e3b00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:19, skipping insertion in model container [2021-11-07 00:53:19,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:19" (1/1) ... [2021-11-07 00:53:19,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:53:19,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:53:20,016 WARN L228 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_3e88bbb7-6826-468f-88b7-a29aa2ba010f/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4499,4512] [2021-11-07 00:53:20,024 WARN L228 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_3e88bbb7-6826-468f-88b7-a29aa2ba010f/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4559,4572] [2021-11-07 00:53:20,049 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 00:53:20,055 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 00:53:20,998 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:20,999 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:20,999 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,000 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,001 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,015 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,016 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,018 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,025 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,027 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,032 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,032 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,033 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,509 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 00:53:21,510 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 00:53:21,516 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 00:53:21,517 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 00:53:21,519 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 00:53:21,520 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 00:53:21,520 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 00:53:21,521 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 00:53:21,522 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 00:53:21,523 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 00:53:21,724 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 00:53:21,755 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,763 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,828 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,829 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,829 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,830 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,830 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,831 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,831 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,832 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,832 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,833 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,833 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,833 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,834 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,837 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,838 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,838 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,838 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,842 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,843 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,851 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,852 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,852 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,864 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,865 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,866 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:21,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:53:21,900 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 00:53:21,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6177166d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:21, skipping insertion in model container [2021-11-07 00:53:21,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:53:21,902 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 00:53:21,904 INFO L168 Benchmark]: Toolchain (without parser) took 2321.44 ms. Allocated memory is still 113.2 MB. Free memory was 68.8 MB in the beginning and 41.4 MB in the end (delta: 27.5 MB). Peak memory consumption was 29.6 MB. Max. memory is 16.1 GB. [2021-11-07 00:53:21,905 INFO L168 Benchmark]: CDTParser took 7.62 ms. Allocated memory is still 113.2 MB. Free memory was 88.1 MB in the beginning and 93.2 MB in the end (delta: -5.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 00:53:21,906 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2318.74 ms. Allocated memory is still 113.2 MB. Free memory was 68.7 MB in the beginning and 41.4 MB in the end (delta: 27.3 MB). Peak memory consumption was 29.6 MB. Max. memory is 16.1 GB. [2021-11-07 00:53:21,908 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 7.62 ms. Allocated memory is still 113.2 MB. Free memory was 88.1 MB in the beginning and 93.2 MB in the end (delta: -5.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2318.74 ms. Allocated memory is still 113.2 MB. Free memory was 68.7 MB in the beginning and 41.4 MB in the end (delta: 27.3 MB). Peak memory consumption was 29.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7039]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/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_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8 --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 --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:53:24,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:53:24,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:53:24,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:53:24,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:53:24,319 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:53:24,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:53:24,331 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:53:24,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:53:24,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:53:24,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:53:24,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:53:24,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:53:24,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:53:24,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:53:24,353 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:53:24,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:53:24,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:53:24,360 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:53:24,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:53:24,370 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:53:24,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:53:24,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:53:24,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:53:24,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:53:24,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:53:24,382 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:53:24,384 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:53:24,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:53:24,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:53:24,387 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:53:24,388 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:53:24,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:53:24,391 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:53:24,393 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:53:24,393 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:53:24,394 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:53:24,394 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:53:24,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:53:24,403 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:53:24,404 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:53:24,407 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 00:53:24,458 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:53:24,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:53:24,460 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:53:24,461 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:53:24,461 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:53:24,461 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:53:24,461 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:53:24,462 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:53:24,462 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:53:24,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:53:24,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:53:24,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:53:24,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:53:24,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:53:24,466 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:53:24,466 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 00:53:24,466 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 00:53:24,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:53:24,467 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:53:24,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:53:24,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:53:24,467 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 00:53:24,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:53:24,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:53:24,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:53:24,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:53:24,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:53:24,469 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 00:53:24,469 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 00:53:24,469 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:53:24,470 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:53:24,470 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:53:24,470 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_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ebada516f0ccae5e55b91f6e0fe5802f70171054dc79c047f46877ad506c65e [2021-11-07 00:53:24,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:53:24,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:53:24,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:53:24,879 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:53:24,880 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:53:24,881 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i [2021-11-07 00:53:24,959 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/data/34717c9ce/ed821490dbbe4130a5b92b4431d4b3b7/FLAG616180e45 [2021-11-07 00:53:25,962 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:53:25,963 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i [2021-11-07 00:53:26,006 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/data/34717c9ce/ed821490dbbe4130a5b92b4431d4b3b7/FLAG616180e45 [2021-11-07 00:53:26,408 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/data/34717c9ce/ed821490dbbe4130a5b92b4431d4b3b7 [2021-11-07 00:53:26,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:53:26,412 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:53:26,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:53:26,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:53:26,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:53:26,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:26" (1/1) ... [2021-11-07 00:53:26,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d6df000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:26, skipping insertion in model container [2021-11-07 00:53:26,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:26" (1/1) ... [2021-11-07 00:53:26,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:53:26,570 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:53:26,820 WARN L228 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_3e88bbb7-6826-468f-88b7-a29aa2ba010f/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4499,4512] [2021-11-07 00:53:26,827 WARN L228 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_3e88bbb7-6826-468f-88b7-a29aa2ba010f/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4559,4572] [2021-11-07 00:53:26,882 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 00:53:26,888 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 00:53:27,860 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:27,861 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:27,862 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:27,863 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:27,864 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:27,881 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:27,882 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:27,884 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:27,885 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:27,887 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:27,889 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:27,890 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:27,890 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:28,301 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 00:53:28,303 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 00:53:28,304 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 00:53:28,305 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 00:53:28,307 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 00:53:28,307 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 00:53:28,308 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 00:53:28,309 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 00:53:28,310 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 00:53:28,311 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 00:53:28,544 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 00:53:28,612 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:28,621 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:28,702 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:28,705 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:28,706 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:28,709 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:28,710 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:28,711 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:28,711 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:28,713 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:28,714 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:28,714 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:28,715 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:28,715 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:28,715 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:28,720 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:28,721 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:28,722 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:28,722 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:28,733 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:28,734 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:28,744 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:28,748 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:28,749 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:28,770 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:28,770 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:28,775 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:28,782 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:53:28,842 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 00:53:28,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:53:28,924 WARN L228 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_3e88bbb7-6826-468f-88b7-a29aa2ba010f/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4499,4512] [2021-11-07 00:53:28,930 WARN L228 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_3e88bbb7-6826-468f-88b7-a29aa2ba010f/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4559,4572] [2021-11-07 00:53:28,932 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 00:53:28,933 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 00:53:29,011 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,013 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,014 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,014 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,015 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,033 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,034 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,035 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,035 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,036 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,037 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,038 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,038 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,089 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 00:53:29,089 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 00:53:29,091 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 00:53:29,092 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 00:53:29,097 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 00:53:29,098 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 00:53:29,099 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 00:53:29,100 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 00:53:29,100 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 00:53:29,101 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 00:53:29,134 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 00:53:29,162 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,168 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,215 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,219 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,220 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,220 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,221 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,222 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,222 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,223 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,224 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,225 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,225 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,226 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,227 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,228 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,247 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,247 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,248 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,253 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,254 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,269 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,270 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,271 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,284 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,285 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,285 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:53:29,318 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 00:53:29,344 WARN L228 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_3e88bbb7-6826-468f-88b7-a29aa2ba010f/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4499,4512] [2021-11-07 00:53:29,345 WARN L228 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_3e88bbb7-6826-468f-88b7-a29aa2ba010f/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4559,4572] [2021-11-07 00:53:29,347 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 00:53:29,349 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 00:53:29,392 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,393 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,393 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,394 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,394 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,401 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,402 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,403 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,404 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,405 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,405 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,406 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,406 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,442 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 00:53:29,443 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 00:53:29,443 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 00:53:29,444 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 00:53:29,445 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 00:53:29,446 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 00:53:29,446 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 00:53:29,447 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 00:53:29,447 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 00:53:29,448 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 00:53:29,469 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 00:53:29,527 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,532 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,554 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,557 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,558 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,558 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,558 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,559 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,560 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,564 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,564 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,564 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,565 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,565 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,566 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,567 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,568 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,569 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,576 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,579 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,579 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,588 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,589 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,590 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,595 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,596 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,596 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 00:53:29,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:53:29,971 INFO L208 MainTranslator]: Completed translation [2021-11-07 00:53:29,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:29 WrapperNode [2021-11-07 00:53:29,972 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:53:29,973 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 00:53:29,973 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 00:53:29,973 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 00:53:29,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:29" (1/1) ... [2021-11-07 00:53:30,115 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:29" (1/1) ... [2021-11-07 00:53:30,699 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 00:53:30,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 00:53:30,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 00:53:30,700 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 00:53:30,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:29" (1/1) ... [2021-11-07 00:53:30,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:29" (1/1) ... [2021-11-07 00:53:30,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:29" (1/1) ... [2021-11-07 00:53:30,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:29" (1/1) ... [2021-11-07 00:53:31,145 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:29" (1/1) ... [2021-11-07 00:53:31,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:29" (1/1) ... [2021-11-07 00:53:31,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:29" (1/1) ... [2021-11-07 00:53:31,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 00:53:31,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 00:53:31,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 00:53:31,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 00:53:31,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:29" (1/1) ... [2021-11-07 00:53:31,318 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:53:31,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:53:31,344 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 00:53:31,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 00:53:31,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 00:53:31,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 00:53:31,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 00:53:31,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 00:53:31,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 00:53:31,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 00:53:31,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 00:53:31,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 00:53:31,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 00:53:31,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 00:53:31,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 00:53:31,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 00:53:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-07 00:53:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 00:53:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 00:53:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 00:53:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 00:54:36,046 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 00:54:36,046 INFO L299 CfgBuilder]: Removed 2664 assume(true) statements. [2021-11-07 00:54:36,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:54:36 BoogieIcfgContainer [2021-11-07 00:54:36,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 00:54:36,059 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 00:54:36,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 00:54:36,064 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 00:54:36,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:53:26" (1/3) ... [2021-11-07 00:54:36,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b538aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:54:36, skipping insertion in model container [2021-11-07 00:54:36,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:29" (2/3) ... [2021-11-07 00:54:36,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b538aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:54:36, skipping insertion in model container [2021-11-07 00:54:36,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:54:36" (3/3) ... [2021-11-07 00:54:36,068 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_remove_harness.i [2021-11-07 00:54:36,074 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 00:54:36,075 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 87 error locations. [2021-11-07 00:54:36,186 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 00:54:36,195 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 00:54:36,195 INFO L340 AbstractCegarLoop]: Starting to check reachability of 87 error locations. [2021-11-07 00:54:36,280 INFO L276 IsEmpty]: Start isEmpty. Operand has 3356 states, 3268 states have (on average 1.4225826193390454) internal successors, (4649), 3355 states have internal predecessors, (4649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:54:36,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-07 00:54:36,293 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:54:36,294 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:54:36,294 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr84ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 00:54:36,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:54:36,300 INFO L85 PathProgramCache]: Analyzing trace with hash -429929114, now seen corresponding path program 1 times [2021-11-07 00:54:36,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:54:36,326 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1318971740] [2021-11-07 00:54:36,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:54:36,327 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:54:36,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:54:36,333 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:54:36,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 00:54:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:54:40,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 1598 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 00:54:40,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:54:41,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:54:41,337 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:54:41,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:54:41,533 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:54:41,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1318971740] [2021-11-07 00:54:41,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1318971740] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:54:41,535 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:54:41,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 00:54:41,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10746246] [2021-11-07 00:54:41,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 00:54:41,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:54:41,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 00:54:41,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 00:54:41,580 INFO L87 Difference]: Start difference. First operand has 3356 states, 3268 states have (on average 1.4225826193390454) internal successors, (4649), 3355 states have internal predecessors, (4649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:54:41,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:54:41,812 INFO L93 Difference]: Finished difference Result 6706 states and 9291 transitions. [2021-11-07 00:54:41,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 00:54:41,814 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-07 00:54:41,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:54:41,866 INFO L225 Difference]: With dead ends: 6706 [2021-11-07 00:54:41,866 INFO L226 Difference]: Without dead ends: 3351 [2021-11-07 00:54:41,881 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 00:54:41,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3351 states. [2021-11-07 00:54:42,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3351 to 3351. [2021-11-07 00:54:42,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3351 states, 3264 states have (on average 1.326593137254902) internal successors, (4330), 3350 states have internal predecessors, (4330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:54:42,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3351 states to 3351 states and 4330 transitions. [2021-11-07 00:54:42,100 INFO L78 Accepts]: Start accepts. Automaton has 3351 states and 4330 transitions. Word has length 58 [2021-11-07 00:54:42,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:54:42,107 INFO L470 AbstractCegarLoop]: Abstraction has 3351 states and 4330 transitions. [2021-11-07 00:54:42,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:54:42,109 INFO L276 IsEmpty]: Start isEmpty. Operand 3351 states and 4330 transitions. [2021-11-07 00:54:42,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-07 00:54:42,119 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:54:42,120 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:54:42,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 00:54:42,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:54:42,343 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 00:54:42,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:54:42,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1291635818, now seen corresponding path program 1 times [2021-11-07 00:54:42,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:54:42,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1028026218] [2021-11-07 00:54:42,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:54:42,350 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:54:42,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:54:42,351 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:54:42,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 00:54:46,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:54:47,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 1616 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 00:54:47,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:54:47,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:54:47,628 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:54:48,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:54:48,076 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:54:48,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1028026218] [2021-11-07 00:54:48,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1028026218] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:54:48,076 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:54:48,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 00:54:48,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631089716] [2021-11-07 00:54:48,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 00:54:48,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:54:48,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 00:54:48,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:54:48,080 INFO L87 Difference]: Start difference. First operand 3351 states and 4330 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:54:51,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:54:51,060 INFO L93 Difference]: Finished difference Result 6622 states and 8555 transitions. [2021-11-07 00:54:51,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:54:51,062 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-07 00:54:51,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:54:51,084 INFO L225 Difference]: With dead ends: 6622 [2021-11-07 00:54:51,084 INFO L226 Difference]: Without dead ends: 3351 [2021-11-07 00:54:51,093 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 00:54:51,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3351 states. [2021-11-07 00:54:51,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3351 to 3351. [2021-11-07 00:54:51,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3351 states, 3264 states have (on average 1.3262867647058822) internal successors, (4329), 3350 states have internal predecessors, (4329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:54:51,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3351 states to 3351 states and 4329 transitions. [2021-11-07 00:54:51,227 INFO L78 Accepts]: Start accepts. Automaton has 3351 states and 4329 transitions. Word has length 62 [2021-11-07 00:54:51,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:54:51,228 INFO L470 AbstractCegarLoop]: Abstraction has 3351 states and 4329 transitions. [2021-11-07 00:54:51,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:54:51,229 INFO L276 IsEmpty]: Start isEmpty. Operand 3351 states and 4329 transitions. [2021-11-07 00:54:51,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-07 00:54:51,232 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:54:51,232 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:54:51,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 00:54:51,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:54:51,433 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 00:54:51,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:54:51,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1901522265, now seen corresponding path program 1 times [2021-11-07 00:54:51,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:54:51,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [453983594] [2021-11-07 00:54:51,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:54:51,439 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:54:51,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:54:51,444 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:54:51,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 00:54:56,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:54:56,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 1632 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 00:54:56,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:54:56,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:54:56,929 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:54:57,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:54:57,434 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:54:57,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [453983594] [2021-11-07 00:54:57,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [453983594] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:54:57,435 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:54:57,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 00:54:57,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553071184] [2021-11-07 00:54:57,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 00:54:57,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:54:57,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 00:54:57,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 00:54:57,438 INFO L87 Difference]: Start difference. First operand 3351 states and 4329 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:55:14,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:55:14,632 INFO L93 Difference]: Finished difference Result 6690 states and 8642 transitions. [2021-11-07 00:55:14,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 00:55:14,633 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-11-07 00:55:14,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:55:14,656 INFO L225 Difference]: With dead ends: 6690 [2021-11-07 00:55:14,657 INFO L226 Difference]: Without dead ends: 3387 [2021-11-07 00:55:14,663 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 00:55:14,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3387 states. [2021-11-07 00:55:14,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3387 to 3351. [2021-11-07 00:55:14,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3351 states, 3264 states have (on average 1.3259803921568627) internal successors, (4328), 3350 states have internal predecessors, (4328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:55:14,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3351 states to 3351 states and 4328 transitions. [2021-11-07 00:55:14,773 INFO L78 Accepts]: Start accepts. Automaton has 3351 states and 4328 transitions. Word has length 66 [2021-11-07 00:55:14,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:55:14,773 INFO L470 AbstractCegarLoop]: Abstraction has 3351 states and 4328 transitions. [2021-11-07 00:55:14,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:55:14,774 INFO L276 IsEmpty]: Start isEmpty. Operand 3351 states and 4328 transitions. [2021-11-07 00:55:14,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-07 00:55:14,775 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:55:14,775 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:55:14,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 00:55:14,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:55:14,991 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 00:55:14,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:55:14,992 INFO L85 PathProgramCache]: Analyzing trace with hash 68046965, now seen corresponding path program 1 times [2021-11-07 00:55:14,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:55:14,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1300718482] [2021-11-07 00:55:14,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:55:15,000 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:55:15,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:55:15,001 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:55:15,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 00:55:20,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:55:20,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 1691 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 00:55:20,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:55:20,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:55:20,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:55:21,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:55:21,571 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:55:21,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1300718482] [2021-11-07 00:55:21,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1300718482] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:55:21,571 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:55:21,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 00:55:21,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944675883] [2021-11-07 00:55:21,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 00:55:21,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:55:21,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 00:55:21,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 00:55:21,573 INFO L87 Difference]: Start difference. First operand 3351 states and 4328 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:55:26,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:55:26,420 INFO L93 Difference]: Finished difference Result 6623 states and 8554 transitions. [2021-11-07 00:55:26,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 00:55:26,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-11-07 00:55:26,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:55:26,446 INFO L225 Difference]: With dead ends: 6623 [2021-11-07 00:55:26,447 INFO L226 Difference]: Without dead ends: 3351 [2021-11-07 00:55:26,454 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 00:55:26,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3351 states. [2021-11-07 00:55:26,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3351 to 3351. [2021-11-07 00:55:26,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3351 states, 3264 states have (on average 1.3256740196078431) internal successors, (4327), 3350 states have internal predecessors, (4327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:55:26,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3351 states to 3351 states and 4327 transitions. [2021-11-07 00:55:26,576 INFO L78 Accepts]: Start accepts. Automaton has 3351 states and 4327 transitions. Word has length 74 [2021-11-07 00:55:26,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:55:26,577 INFO L470 AbstractCegarLoop]: Abstraction has 3351 states and 4327 transitions. [2021-11-07 00:55:26,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:55:26,578 INFO L276 IsEmpty]: Start isEmpty. Operand 3351 states and 4327 transitions. [2021-11-07 00:55:26,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-07 00:55:26,579 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:55:26,579 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:55:26,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 00:55:26,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:55:26,795 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 00:55:26,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:55:26,796 INFO L85 PathProgramCache]: Analyzing trace with hash -726192986, now seen corresponding path program 1 times [2021-11-07 00:55:26,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:55:26,800 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1523429510] [2021-11-07 00:55:26,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:55:26,801 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:55:26,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:55:26,802 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:55:26,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 00:55:31,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:55:31,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 1723 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 00:55:31,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:55:32,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:55:32,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:55:33,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:55:33,548 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:55:33,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1523429510] [2021-11-07 00:55:33,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1523429510] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:55:33,549 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:55:33,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-07 00:55:33,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469637282] [2021-11-07 00:55:33,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 00:55:33,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:55:33,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 00:55:33,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-07 00:55:33,551 INFO L87 Difference]: Start difference. First operand 3351 states and 4327 transitions. Second operand has 10 states, 10 states have (on average 11.8) internal successors, (118), 10 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:56:30,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:56:30,621 INFO L93 Difference]: Finished difference Result 14060 states and 17897 transitions. [2021-11-07 00:56:30,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 00:56:30,622 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 10 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-07 00:56:30,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:56:30,689 INFO L225 Difference]: With dead ends: 14060 [2021-11-07 00:56:30,689 INFO L226 Difference]: Without dead ends: 10772 [2021-11-07 00:56:30,696 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-11-07 00:56:30,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10772 states. [2021-11-07 00:56:30,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10772 to 3351. [2021-11-07 00:56:30,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3351 states, 3264 states have (on average 1.3253676470588236) internal successors, (4326), 3350 states have internal predecessors, (4326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:56:30,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3351 states to 3351 states and 4326 transitions. [2021-11-07 00:56:30,873 INFO L78 Accepts]: Start accepts. Automaton has 3351 states and 4326 transitions. Word has length 86 [2021-11-07 00:56:30,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:56:30,874 INFO L470 AbstractCegarLoop]: Abstraction has 3351 states and 4326 transitions. [2021-11-07 00:56:30,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 10 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:56:30,874 INFO L276 IsEmpty]: Start isEmpty. Operand 3351 states and 4326 transitions. [2021-11-07 00:56:30,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-07 00:56:30,876 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:56:30,876 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:56:30,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 00:56:31,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:56:31,103 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 00:56:31,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:56:31,104 INFO L85 PathProgramCache]: Analyzing trace with hash 2145888010, now seen corresponding path program 1 times [2021-11-07 00:56:31,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:56:31,109 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1995426687] [2021-11-07 00:56:31,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:56:31,109 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:56:31,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:56:31,110 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:56:31,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 00:56:36,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:56:36,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 1782 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 00:56:36,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:56:37,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:37,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:56:37,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:37,998 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:56:37,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1995426687] [2021-11-07 00:56:37,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1995426687] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:56:37,998 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:56:37,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 00:56:37,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497343210] [2021-11-07 00:56:37,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 00:56:37,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:56:38,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 00:56:38,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 00:56:38,000 INFO L87 Difference]: Start difference. First operand 3351 states and 4326 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:56:41,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:56:41,633 INFO L93 Difference]: Finished difference Result 9584 states and 12328 transitions. [2021-11-07 00:56:41,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 00:56:41,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-11-07 00:56:41,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:56:41,664 INFO L225 Difference]: With dead ends: 9584 [2021-11-07 00:56:41,664 INFO L226 Difference]: Without dead ends: 6311 [2021-11-07 00:56:41,671 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 00:56:41,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6311 states. [2021-11-07 00:56:41,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6311 to 3465. [2021-11-07 00:56:41,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3465 states, 3378 states have (on average 1.325636471284784) internal successors, (4478), 3464 states have internal predecessors, (4478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:56:41,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3465 states to 3465 states and 4478 transitions. [2021-11-07 00:56:41,797 INFO L78 Accepts]: Start accepts. Automaton has 3465 states and 4478 transitions. Word has length 94 [2021-11-07 00:56:41,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:56:41,797 INFO L470 AbstractCegarLoop]: Abstraction has 3465 states and 4478 transitions. [2021-11-07 00:56:41,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:56:41,798 INFO L276 IsEmpty]: Start isEmpty. Operand 3465 states and 4478 transitions. [2021-11-07 00:56:41,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-07 00:56:41,799 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:56:41,799 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:56:41,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 00:56:42,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:56:42,012 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 00:56:42,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:56:42,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1667999028, now seen corresponding path program 1 times [2021-11-07 00:56:42,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:56:42,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [74882791] [2021-11-07 00:56:42,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:56:42,016 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:56:42,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:56:42,017 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:56:42,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 00:56:47,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:56:47,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 1785 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 00:56:47,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:56:49,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:49,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:56:50,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:50,468 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:56:50,468 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [74882791] [2021-11-07 00:56:50,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [74882791] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:56:50,469 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:56:50,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-07 00:56:50,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471693865] [2021-11-07 00:56:50,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 00:56:50,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:56:50,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 00:56:50,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-07 00:56:50,471 INFO L87 Difference]: Start difference. First operand 3465 states and 4478 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:05:56,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:05:56,840 INFO L93 Difference]: Finished difference Result 9562 states and 12285 transitions. [2021-11-07 01:05:56,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:05:56,844 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-11-07 01:05:56,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:05:56,854 INFO L225 Difference]: With dead ends: 9562 [2021-11-07 01:05:56,854 INFO L226 Difference]: Without dead ends: 6172 [2021-11-07 01:05:56,861 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:05:56,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6172 states. [2021-11-07 01:05:56,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6172 to 3465. [2021-11-07 01:05:56,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3465 states, 3378 states have (on average 1.3200118413262285) internal successors, (4459), 3464 states have internal predecessors, (4459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:05:56,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3465 states to 3465 states and 4459 transitions. [2021-11-07 01:05:56,971 INFO L78 Accepts]: Start accepts. Automaton has 3465 states and 4459 transitions. Word has length 94 [2021-11-07 01:05:56,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:05:56,972 INFO L470 AbstractCegarLoop]: Abstraction has 3465 states and 4459 transitions. [2021-11-07 01:05:56,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:05:56,972 INFO L276 IsEmpty]: Start isEmpty. Operand 3465 states and 4459 transitions. [2021-11-07 01:05:56,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-07 01:05:56,973 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:05:56,974 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:05:57,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:05:57,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:05:57,187 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 01:05:57,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:05:57,188 INFO L85 PathProgramCache]: Analyzing trace with hash 271163018, now seen corresponding path program 1 times [2021-11-07 01:05:57,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:05:57,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1346587875] [2021-11-07 01:05:57,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:05:57,192 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:05:57,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:05:57,193 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:05:57,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e88bbb7-6826-468f-88b7-a29aa2ba010f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:06:01,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:06:02,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 1783 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:06:02,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:06:03,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:06:03,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:06:04,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:06:04,272 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:06:04,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1346587875] [2021-11-07 01:06:04,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1346587875] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:06:04,272 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:06:04,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-11-07 01:06:04,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440145339] [2021-11-07 01:06:04,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 01:06:04,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:06:04,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 01:06:04,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:06:04,274 INFO L87 Difference]: Start difference. First operand 3465 states and 4459 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)