./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF --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 13ab51b5126028da19fd5973a25f590452a4763e1cc4e396aeee438668151298 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:39:50,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:39:50,330 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:39:50,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:39:50,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:39:50,399 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:39:50,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:39:50,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:39:50,411 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:39:50,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:39:50,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:39:50,423 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:39:50,424 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:39:50,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:39:50,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:39:50,435 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:39:50,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:39:50,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:39:50,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:39:50,452 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:39:50,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:39:50,460 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:39:50,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:39:50,464 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:39:50,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:39:50,468 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:39:50,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:39:50,469 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:39:50,470 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:39:50,471 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:39:50,472 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:39:50,473 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:39:50,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:39:50,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:39:50,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:39:50,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:39:50,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:39:50,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:39:50,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:39:50,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:39:50,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:39:50,480 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-13 01:39:50,509 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:39:50,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:39:50,510 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:39:50,510 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:39:50,510 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:39:50,510 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:39:50,511 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:39:50,511 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:39:50,511 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:39:50,511 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:39:50,512 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:39:50,512 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:39:50,512 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:39:50,512 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:39:50,512 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:39:50,513 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:39:50,513 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:39:50,514 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:39:50,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:39:50,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:39:50,514 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:39:50,515 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:39:50,515 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:39:50,515 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:39:50,515 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:39:50,515 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:39:50,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:39:50,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:39:50,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:39:50,516 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:39:50,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:39:50,517 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:39:50,517 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:39:50,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:39:50,517 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:39:50,518 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:39:50,518 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:39:50,518 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_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13ab51b5126028da19fd5973a25f590452a4763e1cc4e396aeee438668151298 [2021-11-13 01:39:50,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:39:50,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:39:50,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:39:50,857 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:39:50,858 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:39:50,859 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i [2021-11-13 01:39:50,972 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/data/390e4fa5b/23d7c8eee134429fa9e0bee9601ee304/FLAGa5e75a077 [2021-11-13 01:39:51,940 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:39:51,941 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i [2021-11-13 01:39:51,989 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/data/390e4fa5b/23d7c8eee134429fa9e0bee9601ee304/FLAGa5e75a077 [2021-11-13 01:39:52,338 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/data/390e4fa5b/23d7c8eee134429fa9e0bee9601ee304 [2021-11-13 01:39:52,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:39:52,343 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:39:52,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:39:52,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:39:52,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:39:52,350 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:39:52" (1/1) ... [2021-11-13 01:39:52,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51e11ae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:39:52, skipping insertion in model container [2021-11-13 01:39:52,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:39:52" (1/1) ... [2021-11-13 01:39:52,361 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:39:52,495 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:39:52,849 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_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4492,4505] [2021-11-13 01:39:52,858 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_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4552,4565] [2021-11-13 01:39:52,884 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 01:39:52,890 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 01:39:54,005 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:39:54,006 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:39:54,007 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:39:54,008 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:39:54,010 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:39:54,027 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:39:54,028 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:39:54,031 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:39:54,032 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:39:54,035 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:39:54,036 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:39:54,038 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:39:54,038 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:39:54,705 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 01:39:54,728 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 01:39:54,730 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 01:39:54,731 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 01:39:54,733 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 01:39:54,734 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 01:39:54,735 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 01:39:54,736 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 01:39:54,737 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 01:39:54,738 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 01:39:55,083 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 01:39:55,476 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:39:55,477 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:39:55,503 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:39:55,505 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:39:55,512 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:39:55,513 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:39:55,530 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:39:55,531 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:39:55,532 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:39:55,532 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:39:55,533 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:39:55,534 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:39:55,534 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:39:55,574 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:39:55,657 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) [2021-11-13 01:39:55,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7c09242e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:39:55, skipping insertion in model container [2021-11-13 01:39:55,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:39:55,660 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 01:39:55,662 INFO L158 Benchmark]: Toolchain (without parser) took 3317.76ms. Allocated memory is still 111.1MB. Free memory was 84.9MB in the beginning and 72.7MB in the end (delta: 12.2MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. [2021-11-13 01:39:55,663 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 90.2MB. Free memory is still 68.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:39:55,664 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3314.85ms. Allocated memory is still 111.1MB. Free memory was 84.8MB in the beginning and 72.7MB in the end (delta: 12.1MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. [2021-11-13 01:39:55,666 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 90.2MB. Free memory is still 68.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3314.85ms. Allocated memory is still 111.1MB. Free memory was 84.8MB in the beginning and 72.7MB in the end (delta: 12.1MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7051]: 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_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF --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 13ab51b5126028da19fd5973a25f590452a4763e1cc4e396aeee438668151298 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:39:58,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:39:58,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:39:58,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:39:58,136 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:39:58,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:39:58,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:39:58,151 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:39:58,155 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:39:58,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:39:58,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:39:58,170 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:39:58,171 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:39:58,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:39:58,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:39:58,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:39:58,185 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:39:58,186 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:39:58,188 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:39:58,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:39:58,199 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:39:58,200 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:39:58,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:39:58,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:39:58,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:39:58,217 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:39:58,219 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:39:58,221 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:39:58,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:39:58,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:39:58,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:39:58,227 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:39:58,229 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:39:58,230 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:39:58,232 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:39:58,233 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:39:58,234 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:39:58,234 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:39:58,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:39:58,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:39:58,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:39:58,244 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-13 01:39:58,293 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:39:58,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:39:58,299 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:39:58,299 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:39:58,300 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:39:58,300 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:39:58,300 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:39:58,300 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:39:58,300 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:39:58,301 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:39:58,301 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:39:58,302 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:39:58,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:39:58,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:39:58,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:39:58,302 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:39:58,303 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 01:39:58,303 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 01:39:58,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:39:58,303 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:39:58,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:39:58,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:39:58,304 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 01:39:58,304 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:39:58,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:39:58,304 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:39:58,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:39:58,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:39:58,305 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 01:39:58,305 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 01:39:58,305 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:39:58,306 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:39:58,306 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:39:58,306 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_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13ab51b5126028da19fd5973a25f590452a4763e1cc4e396aeee438668151298 [2021-11-13 01:39:58,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:39:58,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:39:58,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:39:58,755 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:39:58,756 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:39:58,758 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i [2021-11-13 01:39:58,843 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/data/792c4cba8/15857866c1eb4f9abbdb67ce330cea3a/FLAG401f77226 [2021-11-13 01:39:59,996 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:39:59,996 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i [2021-11-13 01:40:00,052 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/data/792c4cba8/15857866c1eb4f9abbdb67ce330cea3a/FLAG401f77226 [2021-11-13 01:40:00,299 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/data/792c4cba8/15857866c1eb4f9abbdb67ce330cea3a [2021-11-13 01:40:00,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:40:00,307 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:40:00,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:40:00,310 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:40:00,313 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:40:00,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:40:00" (1/1) ... [2021-11-13 01:40:00,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@525f0259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:00, skipping insertion in model container [2021-11-13 01:40:00,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:40:00" (1/1) ... [2021-11-13 01:40:00,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:40:00,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:40:00,850 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_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4492,4505] [2021-11-13 01:40:00,862 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_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4552,4565] [2021-11-13 01:40:00,902 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 01:40:00,911 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 01:40:02,093 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:02,094 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:02,094 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:02,096 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:02,098 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:02,117 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:02,118 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:02,121 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:02,122 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:02,124 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:02,126 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:02,127 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:02,128 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:02,748 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 01:40:02,784 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 01:40:02,785 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 01:40:02,786 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 01:40:02,788 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 01:40:02,789 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 01:40:02,790 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 01:40:02,803 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 01:40:02,804 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 01:40:02,805 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 01:40:03,116 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 01:40:03,605 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:03,606 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:03,642 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:03,645 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:03,654 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:03,655 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:03,681 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:03,682 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:03,684 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:03,684 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:03,685 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:03,685 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:03,686 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:03,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:40:03,831 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 01:40:03,882 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:40:03,890 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_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4492,4505] [2021-11-13 01:40:03,891 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_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4552,4565] [2021-11-13 01:40:03,892 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 01:40:03,893 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 01:40:03,946 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:03,946 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:03,947 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:03,947 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:03,948 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:03,958 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:03,959 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:03,960 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:03,960 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:03,962 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:03,964 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:03,964 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:03,964 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,029 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 01:40:04,030 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 01:40:04,031 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 01:40:04,033 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 01:40:04,034 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 01:40:04,035 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 01:40:04,035 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 01:40:04,036 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 01:40:04,036 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 01:40:04,037 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 01:40:04,068 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 01:40:04,207 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,208 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,235 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,236 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,239 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,240 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,253 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,255 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,255 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,256 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,256 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,257 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,258 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:40:04,325 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:40:04,354 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_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4492,4505] [2021-11-13 01:40:04,354 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_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i[4552,4565] [2021-11-13 01:40:04,356 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-13 01:40:04,357 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-13 01:40:04,396 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,397 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,397 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,398 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,399 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,406 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,407 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,408 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,408 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,410 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,412 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,413 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,413 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,450 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-13 01:40:04,452 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-13 01:40:04,453 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-13 01:40:04,453 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-13 01:40:04,454 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-13 01:40:04,455 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-13 01:40:04,455 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-13 01:40:04,456 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-13 01:40:04,456 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-13 01:40:04,457 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-13 01:40:04,511 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-13 01:40:04,632 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,633 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,647 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,648 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,654 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,654 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,669 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,670 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,671 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,671 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,672 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,672 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,673 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-13 01:40:04,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:40:05,243 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:40:05,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:05 WrapperNode [2021-11-13 01:40:05,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:40:05,246 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:40:05,246 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:40:05,246 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:40:05,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:05" (1/1) ... [2021-11-13 01:40:05,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:05" (1/1) ... [2021-11-13 01:40:05,539 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:40:05,540 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:40:05,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:40:05,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:40:05,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:05" (1/1) ... [2021-11-13 01:40:05,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:05" (1/1) ... [2021-11-13 01:40:05,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:05" (1/1) ... [2021-11-13 01:40:05,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:05" (1/1) ... [2021-11-13 01:40:05,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:05" (1/1) ... [2021-11-13 01:40:05,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:05" (1/1) ... [2021-11-13 01:40:05,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:05" (1/1) ... [2021-11-13 01:40:05,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:40:05,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:40:05,754 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:40:05,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:40:05,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:05" (1/1) ... [2021-11-13 01:40:05,767 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:40:05,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:40:05,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:40:05,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:40:05,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-13 01:40:05,841 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-13 01:40:05,841 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-13 01:40:05,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-13 01:40:05,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-13 01:40:05,849 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2021-11-13 01:40:05,849 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2021-11-13 01:40:05,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 01:40:05,849 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_next [2021-11-13 01:40:05,850 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_next [2021-11-13 01:40:05,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 01:40:05,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:40:05,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:40:05,850 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-13 01:40:05,850 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-13 01:40:05,851 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-13 01:40:05,851 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-13 01:40:05,851 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-13 01:40:05,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:40:05,851 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2021-11-13 01:40:05,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2021-11-13 01:40:05,852 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-13 01:40:05,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 01:40:05,852 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-13 01:40:05,852 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-13 01:40:05,852 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2021-11-13 01:40:05,852 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2021-11-13 01:40:05,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 01:40:05,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 01:40:05,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-13 01:40:05,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-13 01:40:05,853 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2021-11-13 01:40:05,853 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2021-11-13 01:40:05,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-13 01:40:05,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-13 01:40:05,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 01:40:05,854 INFO L130 BoogieDeclarations]: Found specification of procedure s_get_next_element [2021-11-13 01:40:05,854 INFO L138 BoogieDeclarations]: Found implementation of procedure s_get_next_element [2021-11-13 01:40:05,854 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-13 01:40:05,855 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-13 01:40:05,855 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_is_valid [2021-11-13 01:40:05,855 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_is_valid [2021-11-13 01:40:05,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-13 01:40:05,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-13 01:40:05,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 01:40:05,856 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2021-11-13 01:40:05,856 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2021-11-13 01:40:05,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 01:40:05,857 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-13 01:40:05,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-13 01:40:05,857 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2021-11-13 01:40:05,857 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2021-11-13 01:40:22,406 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:40:22,407 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 01:40:22,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:40:22 BoogieIcfgContainer [2021-11-13 01:40:22,410 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:40:22,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:40:22,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:40:22,416 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:40:22,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:40:00" (1/3) ... [2021-11-13 01:40:22,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eec34a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:40:22, skipping insertion in model container [2021-11-13 01:40:22,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:05" (2/3) ... [2021-11-13 01:40:22,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eec34a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:40:22, skipping insertion in model container [2021-11-13 01:40:22,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:40:22" (3/3) ... [2021-11-13 01:40:22,420 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_next_harness.i [2021-11-13 01:40:22,427 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:40:22,427 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 01:40:22,498 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:40:22,506 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 [2021-11-13 01:40:22,507 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 01:40:22,539 INFO L276 IsEmpty]: Start isEmpty. Operand has 163 states, 102 states have (on average 1.2549019607843137) internal successors, (128), 103 states have internal predecessors, (128), 43 states have call successors, (43), 16 states have call predecessors, (43), 16 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2021-11-13 01:40:22,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-13 01:40:22,567 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:22,569 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:40:22,569 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:40:22,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:22,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1972774527, now seen corresponding path program 1 times [2021-11-13 01:40:22,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:40:22,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [742196849] [2021-11-13 01:40:22,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:22,606 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:40:22,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:40:22,614 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:40:22,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 01:40:27,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:27,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 1863 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 01:40:27,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:40:27,966 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2021-11-13 01:40:27,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:40:28,399 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-13 01:40:28,400 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:40:28,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [742196849] [2021-11-13 01:40:28,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [742196849] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:40:28,404 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:40:28,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 01:40:28,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059739637] [2021-11-13 01:40:28,408 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:40:28,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 01:40:28,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:40:28,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 01:40:28,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:40:28,461 INFO L87 Difference]: Start difference. First operand has 163 states, 102 states have (on average 1.2549019607843137) internal successors, (128), 103 states have internal predecessors, (128), 43 states have call successors, (43), 16 states have call predecessors, (43), 16 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-13 01:40:28,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:40:28,545 INFO L93 Difference]: Finished difference Result 318 states and 441 transitions. [2021-11-13 01:40:28,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 01:40:28,549 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 150 [2021-11-13 01:40:28,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:40:28,571 INFO L225 Difference]: With dead ends: 318 [2021-11-13 01:40:28,571 INFO L226 Difference]: Without dead ends: 157 [2021-11-13 01:40:28,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:40:28,589 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.14ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 01:40:28,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 6.14ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 01:40:28,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-11-13 01:40:28,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2021-11-13 01:40:28,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 97 states have (on average 1.2371134020618557) internal successors, (120), 98 states have internal predecessors, (120), 43 states have call successors, (43), 16 states have call predecessors, (43), 16 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2021-11-13 01:40:28,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 205 transitions. [2021-11-13 01:40:28,678 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 205 transitions. Word has length 150 [2021-11-13 01:40:28,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:40:28,679 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 205 transitions. [2021-11-13 01:40:28,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-13 01:40:28,681 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 205 transitions. [2021-11-13 01:40:28,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-13 01:40:28,700 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:28,700 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:40:28,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 01:40:28,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:40:28,901 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:40:28,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:28,902 INFO L85 PathProgramCache]: Analyzing trace with hash -757570685, now seen corresponding path program 1 times [2021-11-13 01:40:28,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:40:28,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1292307363] [2021-11-13 01:40:28,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:28,912 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:40:28,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:40:28,913 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:40:28,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 01:40:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:33,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 1863 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:40:33,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:40:34,164 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2021-11-13 01:40:34,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:40:34,837 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2021-11-13 01:40:34,837 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:40:34,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1292307363] [2021-11-13 01:40:34,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1292307363] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:40:34,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:40:34,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-11-13 01:40:34,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668918392] [2021-11-13 01:40:34,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:40:34,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:40:34,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:40:34,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:40:34,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:40:34,842 INFO L87 Difference]: Start difference. First operand 157 states and 205 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-13 01:40:34,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:40:34,993 INFO L93 Difference]: Finished difference Result 306 states and 401 transitions. [2021-11-13 01:40:34,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 01:40:34,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) Word has length 150 [2021-11-13 01:40:34,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:40:34,999 INFO L225 Difference]: With dead ends: 306 [2021-11-13 01:40:35,003 INFO L226 Difference]: Without dead ends: 161 [2021-11-13 01:40:35,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:40:35,006 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 2 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 808 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.43ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.17ms IncrementalHoareTripleChecker+Time [2021-11-13 01:40:35,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 808 Invalid, 11 Unknown, 0 Unchecked, 16.43ms Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 65.17ms Time] [2021-11-13 01:40:35,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-11-13 01:40:35,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2021-11-13 01:40:35,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 100 states have (on average 1.23) internal successors, (123), 101 states have internal predecessors, (123), 43 states have call successors, (43), 16 states have call predecessors, (43), 17 states have return successors, (43), 43 states have call predecessors, (43), 42 states have call successors, (43) [2021-11-13 01:40:35,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 209 transitions. [2021-11-13 01:40:35,041 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 209 transitions. Word has length 150 [2021-11-13 01:40:35,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:40:35,045 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 209 transitions. [2021-11-13 01:40:35,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-13 01:40:35,046 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 209 transitions. [2021-11-13 01:40:35,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-11-13 01:40:35,058 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:35,059 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:40:35,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-13 01:40:35,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:40:35,273 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:40:35,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:35,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1592501287, now seen corresponding path program 1 times [2021-11-13 01:40:35,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:40:35,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1866181470] [2021-11-13 01:40:35,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:35,282 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:40:35,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:40:35,284 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:40:35,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 01:40:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:39,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 1877 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 01:40:39,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:40:40,514 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-11-13 01:40:40,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:40:41,307 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 6 proven. 23 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-13 01:40:41,308 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:40:41,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1866181470] [2021-11-13 01:40:41,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1866181470] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:40:41,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:40:41,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2021-11-13 01:40:41,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990008483] [2021-11-13 01:40:41,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:40:41,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 01:40:41,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:40:41,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 01:40:41,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-13 01:40:41,311 INFO L87 Difference]: Start difference. First operand 161 states and 209 transitions. Second operand has 6 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-13 01:40:41,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:40:41,652 INFO L93 Difference]: Finished difference Result 312 states and 405 transitions. [2021-11-13 01:40:41,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:40:41,653 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 162 [2021-11-13 01:40:41,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:40:41,658 INFO L225 Difference]: With dead ends: 312 [2021-11-13 01:40:41,659 INFO L226 Difference]: Without dead ends: 163 [2021-11-13 01:40:41,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-13 01:40:41,661 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 2 mSDsluCounter, 741 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 247.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.48ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 279.21ms IncrementalHoareTripleChecker+Time [2021-11-13 01:40:41,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 934 Invalid, 85 Unknown, 0 Unchecked, 7.48ms Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 279.21ms Time] [2021-11-13 01:40:41,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-11-13 01:40:41,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2021-11-13 01:40:41,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 101 states have (on average 1.2277227722772277) internal successors, (124), 103 states have internal predecessors, (124), 43 states have call successors, (43), 16 states have call predecessors, (43), 18 states have return successors, (44), 43 states have call predecessors, (44), 42 states have call successors, (44) [2021-11-13 01:40:41,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 211 transitions. [2021-11-13 01:40:41,688 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 211 transitions. Word has length 162 [2021-11-13 01:40:41,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:40:41,689 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 211 transitions. [2021-11-13 01:40:41,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-13 01:40:41,689 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 211 transitions. [2021-11-13 01:40:41,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-13 01:40:41,692 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:41,693 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:40:41,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 01:40:41,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:40:41,899 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:40:41,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:41,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1476443360, now seen corresponding path program 1 times [2021-11-13 01:40:41,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:40:41,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [426435755] [2021-11-13 01:40:41,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:41,910 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:40:41,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:40:41,911 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:40:41,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 01:40:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:46,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 1924 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-13 01:40:46,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:40:47,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-13 01:40:48,395 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-11-13 01:40:48,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:40:49,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-13 01:40:49,895 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2021-11-13 01:40:49,896 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:40:49,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [426435755] [2021-11-13 01:40:49,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [426435755] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:40:49,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:40:49,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 15 [2021-11-13 01:40:49,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203058158] [2021-11-13 01:40:49,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:40:49,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-13 01:40:49,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:40:49,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-13 01:40:49,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-11-13 01:40:49,899 INFO L87 Difference]: Start difference. First operand 163 states and 211 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 9 states have internal predecessors, (80), 4 states have call successors, (30), 3 states have call predecessors, (30), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2021-11-13 01:40:50,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:40:50,469 INFO L93 Difference]: Finished difference Result 315 states and 407 transitions. [2021-11-13 01:40:50,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 01:40:50,472 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 9 states have internal predecessors, (80), 4 states have call successors, (30), 3 states have call predecessors, (30), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 167 [2021-11-13 01:40:50,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:40:50,476 INFO L225 Difference]: With dead ends: 315 [2021-11-13 01:40:50,476 INFO L226 Difference]: Without dead ends: 172 [2021-11-13 01:40:50,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2021-11-13 01:40:50,478 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 19 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 416.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.13ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 31 IncrementalHoareTripleChecker+Unchecked, 452.29ms IncrementalHoareTripleChecker+Time [2021-11-13 01:40:50,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 981 Invalid, 49 Unknown, 0 Unchecked, 9.13ms Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 31 Unchecked, 452.29ms Time] [2021-11-13 01:40:50,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-11-13 01:40:50,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2021-11-13 01:40:50,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 109 states have (on average 1.2293577981651376) internal successors, (134), 111 states have internal predecessors, (134), 43 states have call successors, (43), 17 states have call predecessors, (43), 19 states have return successors, (45), 43 states have call predecessors, (45), 42 states have call successors, (45) [2021-11-13 01:40:50,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 222 transitions. [2021-11-13 01:40:50,499 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 222 transitions. Word has length 167 [2021-11-13 01:40:50,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:40:50,500 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 222 transitions. [2021-11-13 01:40:50,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 9 states have internal predecessors, (80), 4 states have call successors, (30), 3 states have call predecessors, (30), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2021-11-13 01:40:50,500 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 222 transitions. [2021-11-13 01:40:50,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-13 01:40:50,503 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:50,504 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:40:50,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 01:40:50,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:40:50,723 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:40:50,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:50,724 INFO L85 PathProgramCache]: Analyzing trace with hash -445402462, now seen corresponding path program 1 times [2021-11-13 01:40:50,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:40:50,727 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1582158258] [2021-11-13 01:40:50,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:50,728 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:40:50,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:40:50,729 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:40:50,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 01:40:55,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:55,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 1921 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 01:40:55,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:40:56,283 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-11-13 01:40:56,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:40:57,049 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2021-11-13 01:40:57,049 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:40:57,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1582158258] [2021-11-13 01:40:57,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1582158258] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:40:57,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:40:57,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-11-13 01:40:57,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120239004] [2021-11-13 01:40:57,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:40:57,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:40:57,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:40:57,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:40:57,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:40:57,052 INFO L87 Difference]: Start difference. First operand 172 states and 222 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-13 01:40:57,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:40:57,236 INFO L93 Difference]: Finished difference Result 319 states and 415 transitions. [2021-11-13 01:40:57,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 01:40:57,238 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 167 [2021-11-13 01:40:57,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:40:57,241 INFO L225 Difference]: With dead ends: 319 [2021-11-13 01:40:57,241 INFO L226 Difference]: Without dead ends: 174 [2021-11-13 01:40:57,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:40:57,242 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 24 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 124.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.98ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 162.57ms IncrementalHoareTripleChecker+Time [2021-11-13 01:40:57,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 759 Invalid, 35 Unknown, 0 Unchecked, 3.98ms Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 162.57ms Time] [2021-11-13 01:40:57,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-11-13 01:40:57,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2021-11-13 01:40:57,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 110 states have (on average 1.2181818181818183) internal successors, (134), 112 states have internal predecessors, (134), 44 states have call successors, (44), 17 states have call predecessors, (44), 19 states have return successors, (47), 44 states have call predecessors, (47), 43 states have call successors, (47) [2021-11-13 01:40:57,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 225 transitions. [2021-11-13 01:40:57,266 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 225 transitions. Word has length 167 [2021-11-13 01:40:57,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:40:57,267 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 225 transitions. [2021-11-13 01:40:57,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-13 01:40:57,267 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 225 transitions. [2021-11-13 01:40:57,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-13 01:40:57,270 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:57,271 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:40:57,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 01:40:57,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:40:57,479 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:40:57,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:57,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1586365816, now seen corresponding path program 1 times [2021-11-13 01:40:57,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:40:57,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [792746155] [2021-11-13 01:40:57,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:57,484 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:40:57,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:40:57,484 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:40:57,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 01:41:01,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:01,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 1938 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-13 01:41:01,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:41:02,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-13 01:41:03,783 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-11-13 01:41:03,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:41:05,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-13 01:41:05,377 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2021-11-13 01:41:05,378 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:41:05,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [792746155] [2021-11-13 01:41:05,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [792746155] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:41:05,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:41:05,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [11] total 17 [2021-11-13 01:41:05,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037224824] [2021-11-13 01:41:05,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:41:05,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 01:41:05,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:41:05,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 01:41:05,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2021-11-13 01:41:05,381 INFO L87 Difference]: Start difference. First operand 174 states and 225 transitions. Second operand has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 10 states have internal predecessors, (84), 5 states have call successors, (31), 3 states have call predecessors, (31), 5 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2021-11-13 01:41:05,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:41:05,932 INFO L93 Difference]: Finished difference Result 330 states and 427 transitions. [2021-11-13 01:41:05,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 01:41:05,935 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 10 states have internal predecessors, (84), 5 states have call successors, (31), 3 states have call predecessors, (31), 5 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) Word has length 173 [2021-11-13 01:41:05,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:41:05,938 INFO L225 Difference]: With dead ends: 330 [2021-11-13 01:41:05,938 INFO L226 Difference]: Without dead ends: 177 [2021-11-13 01:41:05,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2021-11-13 01:41:05,940 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 26 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 366.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.58ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 38 IncrementalHoareTripleChecker+Unchecked, 418.50ms IncrementalHoareTripleChecker+Time [2021-11-13 01:41:05,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 784 Invalid, 74 Unknown, 0 Unchecked, 4.58ms Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 38 Unchecked, 418.50ms Time] [2021-11-13 01:41:05,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2021-11-13 01:41:05,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2021-11-13 01:41:05,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 112 states have (on average 1.2142857142857142) internal successors, (136), 114 states have internal predecessors, (136), 45 states have call successors, (45), 18 states have call predecessors, (45), 19 states have return successors, (48), 44 states have call predecessors, (48), 44 states have call successors, (48) [2021-11-13 01:41:05,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 229 transitions. [2021-11-13 01:41:05,958 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 229 transitions. Word has length 173 [2021-11-13 01:41:05,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:41:05,959 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 229 transitions. [2021-11-13 01:41:05,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 10 states have internal predecessors, (84), 5 states have call successors, (31), 3 states have call predecessors, (31), 5 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2021-11-13 01:41:05,960 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 229 transitions. [2021-11-13 01:41:05,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-11-13 01:41:05,963 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:41:05,964 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:41:06,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 01:41:06,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:41:06,179 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:41:06,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:41:06,180 INFO L85 PathProgramCache]: Analyzing trace with hash 704151898, now seen corresponding path program 1 times [2021-11-13 01:41:06,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:41:06,184 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2114490225] [2021-11-13 01:41:06,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:06,184 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:41:06,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:41:06,185 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:41:06,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 01:41:10,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:10,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 1955 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:41:11,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:41:11,574 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-11-13 01:41:11,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:41:12,121 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-13 01:41:12,122 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:41:12,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2114490225] [2021-11-13 01:41:12,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2114490225] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:41:12,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:41:12,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2021-11-13 01:41:12,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617821090] [2021-11-13 01:41:12,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:41:12,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:41:12,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:41:12,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:41:12,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:41:12,124 INFO L87 Difference]: Start difference. First operand 177 states and 229 transitions. Second operand has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 2 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-13 01:41:12,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:41:12,689 INFO L93 Difference]: Finished difference Result 323 states and 421 transitions. [2021-11-13 01:41:12,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 01:41:12,691 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 2 states have call predecessors, (29), 3 states have call successors, (29) Word has length 178 [2021-11-13 01:41:12,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:41:12,694 INFO L225 Difference]: With dead ends: 323 [2021-11-13 01:41:12,694 INFO L226 Difference]: Without dead ends: 179 [2021-11-13 01:41:12,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:41:12,696 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 39 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 454.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.82ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 524.65ms IncrementalHoareTripleChecker+Time [2021-11-13 01:41:12,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 694 Invalid, 73 Unknown, 0 Unchecked, 3.82ms Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 524.65ms Time] [2021-11-13 01:41:12,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2021-11-13 01:41:12,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2021-11-13 01:41:12,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 113 states have (on average 1.2123893805309736) internal successors, (137), 116 states have internal predecessors, (137), 45 states have call successors, (45), 18 states have call predecessors, (45), 20 states have return successors, (51), 44 states have call predecessors, (51), 44 states have call successors, (51) [2021-11-13 01:41:12,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 233 transitions. [2021-11-13 01:41:12,715 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 233 transitions. Word has length 178 [2021-11-13 01:41:12,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:41:12,716 INFO L470 AbstractCegarLoop]: Abstraction has 179 states and 233 transitions. [2021-11-13 01:41:12,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 2 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-13 01:41:12,717 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 233 transitions. [2021-11-13 01:41:12,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-13 01:41:12,720 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:41:12,721 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:41:12,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-13 01:41:12,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:41:12,947 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:41:12,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:41:12,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1720661498, now seen corresponding path program 1 times [2021-11-13 01:41:12,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:41:12,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1735372894] [2021-11-13 01:41:12,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:12,952 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:41:12,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:41:12,953 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:41:12,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-13 01:41:17,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:17,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 1958 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 01:41:17,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:41:17,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-13 01:41:18,547 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-11-13 01:41:18,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:41:19,365 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-13 01:41:19,365 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:41:19,365 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1735372894] [2021-11-13 01:41:19,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1735372894] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:41:19,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:41:19,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 11 [2021-11-13 01:41:19,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313071233] [2021-11-13 01:41:19,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:41:19,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 01:41:19,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:41:19,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 01:41:19,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-11-13 01:41:19,367 INFO L87 Difference]: Start difference. First operand 179 states and 233 transitions. Second operand has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-13 01:41:21,610 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:24,060 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:24,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:41:24,695 INFO L93 Difference]: Finished difference Result 330 states and 430 transitions. [2021-11-13 01:41:24,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 01:41:24,699 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) Word has length 179 [2021-11-13 01:41:24,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:41:24,702 INFO L225 Difference]: With dead ends: 330 [2021-11-13 01:41:24,702 INFO L226 Difference]: Without dead ends: 182 [2021-11-13 01:41:24,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 348 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-11-13 01:41:24,704 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 20 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5022.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.69ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 90 IncrementalHoareTripleChecker+Unchecked, 5197.76ms IncrementalHoareTripleChecker+Time [2021-11-13 01:41:24,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 1052 Invalid, 122 Unknown, 0 Unchecked, 5.69ms Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 1 Unknown, 90 Unchecked, 5197.76ms Time] [2021-11-13 01:41:24,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-11-13 01:41:24,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2021-11-13 01:41:24,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 116 states have (on average 1.2155172413793103) internal successors, (141), 118 states have internal predecessors, (141), 45 states have call successors, (45), 19 states have call predecessors, (45), 20 states have return successors, (51), 44 states have call predecessors, (51), 44 states have call successors, (51) [2021-11-13 01:41:24,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 237 transitions. [2021-11-13 01:41:24,722 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 237 transitions. Word has length 179 [2021-11-13 01:41:24,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:41:24,723 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 237 transitions. [2021-11-13 01:41:24,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-13 01:41:24,724 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 237 transitions. [2021-11-13 01:41:24,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-13 01:41:24,726 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:41:24,727 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:41:24,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-13 01:41:24,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:41:24,940 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:41:24,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:41:24,941 INFO L85 PathProgramCache]: Analyzing trace with hash -558512055, now seen corresponding path program 1 times [2021-11-13 01:41:24,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:41:24,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [279778780] [2021-11-13 01:41:24,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:24,946 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:41:24,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:41:24,947 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:41:24,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-13 01:41:29,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:29,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 1976 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 01:41:29,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:41:30,412 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-11-13 01:41:30,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:41:31,087 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 15 proven. 16 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-11-13 01:41:31,087 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:41:31,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [279778780] [2021-11-13 01:41:31,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [279778780] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:41:31,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:41:31,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2021-11-13 01:41:31,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443685025] [2021-11-13 01:41:31,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:41:31,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 01:41:31,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:41:31,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 01:41:31,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:41:31,091 INFO L87 Difference]: Start difference. First operand 182 states and 237 transitions. Second operand has 6 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-13 01:41:31,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:41:31,454 INFO L93 Difference]: Finished difference Result 330 states and 433 transitions. [2021-11-13 01:41:31,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:41:31,455 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 188 [2021-11-13 01:41:31,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:41:31,458 INFO L225 Difference]: With dead ends: 330 [2021-11-13 01:41:31,458 INFO L226 Difference]: Without dead ends: 184 [2021-11-13 01:41:31,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:41:31,460 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 2 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 261.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.27ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 313.28ms IncrementalHoareTripleChecker+Time [2021-11-13 01:41:31,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 929 Invalid, 90 Unknown, 0 Unchecked, 4.27ms Time], IncrementalHoareTripleChecker [4 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 313.28ms Time] [2021-11-13 01:41:31,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2021-11-13 01:41:31,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2021-11-13 01:41:31,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 117 states have (on average 1.2136752136752136) internal successors, (142), 120 states have internal predecessors, (142), 45 states have call successors, (45), 19 states have call predecessors, (45), 21 states have return successors, (55), 44 states have call predecessors, (55), 44 states have call successors, (55) [2021-11-13 01:41:31,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 242 transitions. [2021-11-13 01:41:31,478 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 242 transitions. Word has length 188 [2021-11-13 01:41:31,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:41:31,479 INFO L470 AbstractCegarLoop]: Abstraction has 184 states and 242 transitions. [2021-11-13 01:41:31,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-13 01:41:31,479 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 242 transitions. [2021-11-13 01:41:31,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-11-13 01:41:31,482 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:41:31,482 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:41:31,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-13 01:41:31,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:41:31,699 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:41:31,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:41:31,700 INFO L85 PathProgramCache]: Analyzing trace with hash 16991149, now seen corresponding path program 1 times [2021-11-13 01:41:31,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:41:31,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1288675045] [2021-11-13 01:41:31,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:31,706 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:41:31,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:41:31,707 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:41:31,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-13 01:41:36,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:36,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 1986 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:41:36,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:41:36,999 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2021-11-13 01:41:36,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:41:37,603 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-11-13 01:41:37,603 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:41:37,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1288675045] [2021-11-13 01:41:37,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1288675045] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:41:37,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:41:37,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-11-13 01:41:37,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462296716] [2021-11-13 01:41:37,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:41:37,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:41:37,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:41:37,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:41:37,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:41:37,606 INFO L87 Difference]: Start difference. First operand 184 states and 242 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-13 01:41:37,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:41:37,678 INFO L93 Difference]: Finished difference Result 339 states and 459 transitions. [2021-11-13 01:41:37,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 01:41:37,682 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) Word has length 190 [2021-11-13 01:41:37,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:41:37,685 INFO L225 Difference]: With dead ends: 339 [2021-11-13 01:41:37,685 INFO L226 Difference]: Without dead ends: 191 [2021-11-13 01:41:37,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:41:37,688 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 0 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.94ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 58.60ms IncrementalHoareTripleChecker+Time [2021-11-13 01:41:37,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 812 Invalid, 13 Unknown, 0 Unchecked, 1.94ms Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 58.60ms Time] [2021-11-13 01:41:37,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2021-11-13 01:41:37,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2021-11-13 01:41:37,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 122 states have (on average 1.2049180327868851) internal successors, (147), 126 states have internal predecessors, (147), 45 states have call successors, (45), 19 states have call predecessors, (45), 23 states have return successors, (60), 45 states have call predecessors, (60), 44 states have call successors, (60) [2021-11-13 01:41:37,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 252 transitions. [2021-11-13 01:41:37,704 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 252 transitions. Word has length 190 [2021-11-13 01:41:37,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:41:37,705 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 252 transitions. [2021-11-13 01:41:37,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-13 01:41:37,706 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 252 transitions. [2021-11-13 01:41:37,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-11-13 01:41:37,708 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:41:37,708 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:41:37,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-13 01:41:37,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:41:37,923 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:41:37,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:41:37,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1624694021, now seen corresponding path program 1 times [2021-11-13 01:41:37,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:41:37,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1060653668] [2021-11-13 01:41:37,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:41:37,928 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:41:37,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:41:37,928 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:41:37,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-13 01:41:42,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:41:42,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 2000 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-13 01:41:42,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:41:44,628 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-11-13 01:41:44,628 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:41:46,111 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2021-11-13 01:41:46,111 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:41:46,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1060653668] [2021-11-13 01:41:46,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1060653668] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:41:46,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:41:46,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2021-11-13 01:41:46,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975371216] [2021-11-13 01:41:46,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:41:46,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 01:41:46,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:41:46,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 01:41:46,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-13 01:41:46,114 INFO L87 Difference]: Start difference. First operand 191 states and 252 transitions. Second operand has 8 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (31), 2 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-13 01:41:48,364 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:50,378 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:53,163 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:54,598 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:56,854 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:56,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:41:56,916 INFO L93 Difference]: Finished difference Result 350 states and 476 transitions. [2021-11-13 01:41:56,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 01:41:56,920 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (31), 2 states have call predecessors, (31), 3 states have call successors, (31) Word has length 196 [2021-11-13 01:41:56,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:41:56,923 INFO L225 Difference]: With dead ends: 350 [2021-11-13 01:41:56,923 INFO L226 Difference]: Without dead ends: 193 [2021-11-13 01:41:56,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2021-11-13 01:41:56,926 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 7 mSDsluCounter, 1080 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10135.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1282 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.70ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 83 IncrementalHoareTripleChecker+Unchecked, 10372.42ms IncrementalHoareTripleChecker+Time [2021-11-13 01:41:56,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 1282 Invalid, 135 Unknown, 0 Unchecked, 3.70ms Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 3 Unknown, 83 Unchecked, 10372.42ms Time] [2021-11-13 01:41:56,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-11-13 01:41:56,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 190. [2021-11-13 01:41:56,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 122 states have (on average 1.2049180327868851) internal successors, (147), 125 states have internal predecessors, (147), 44 states have call successors, (44), 19 states have call predecessors, (44), 23 states have return successors, (59), 45 states have call predecessors, (59), 43 states have call successors, (59) [2021-11-13 01:41:56,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 250 transitions. [2021-11-13 01:41:56,943 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 250 transitions. Word has length 196 [2021-11-13 01:41:56,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:41:56,944 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 250 transitions. [2021-11-13 01:41:56,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (31), 2 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-13 01:41:56,945 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 250 transitions. [2021-11-13 01:41:56,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-11-13 01:41:56,947 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:41:56,948 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:41:57,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-13 01:41:57,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:41:57,171 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:41:57,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:41:57,172 INFO L85 PathProgramCache]: Analyzing trace with hash 387759007, now seen corresponding path program 2 times [2021-11-13 01:41:57,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:41:57,177 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1624720565] [2021-11-13 01:41:57,178 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 01:41:57,178 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:41:57,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:41:57,180 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:41:57,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e40c4053-f6b5-4f2f-a74c-147d07d0c3c8/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process