./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1ebada516f0ccae5e55b91f6e0fe5802f70171054dc79c047f46877ad506c65e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:05:02,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:05:02,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:05:02,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:05:02,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:05:02,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:05:02,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:05:02,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:05:02,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:05:02,400 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:05:02,401 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:05:02,402 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:05:02,402 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:05:02,403 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:05:02,405 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:05:02,406 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:05:02,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:05:02,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:05:02,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:05:02,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:05:02,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:05:02,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:05:02,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:05:02,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:05:02,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:05:02,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:05:02,440 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:05:02,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:05:02,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:05:02,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:05:02,445 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:05:02,446 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:05:02,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:05:02,449 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:05:02,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:05:02,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:05:02,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:05:02,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:05:02,454 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:05:02,455 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:05:02,455 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:05:02,456 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 08:05:02,493 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:05:02,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:05:02,494 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:05:02,494 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:05:02,499 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:05:02,500 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:05:02,500 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:05:02,500 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:05:02,500 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:05:02,501 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:05:02,502 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:05:02,502 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:05:02,502 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:05:02,502 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:05:02,503 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:05:02,503 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:05:02,503 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:05:02,503 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:05:02,504 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:05:02,504 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:05:02,505 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:05:02,505 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:05:02,505 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:05:02,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:05:02,506 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:05:02,506 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:05:02,506 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:05:02,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:05:02,507 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:05:02,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:05:02,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:05:02,508 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:05:02,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:05:02,508 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:05:02,509 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:05:02,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:05:02,509 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:05:02,509 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:05:02,510 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ebada516f0ccae5e55b91f6e0fe5802f70171054dc79c047f46877ad506c65e [2022-11-19 08:05:02,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:05:02,867 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:05:02,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:05:02,871 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:05:02,872 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:05:02,873 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i [2022-11-19 08:05:02,960 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/data/81ab4a174/be4cb656fed44d74be8028518009c645/FLAG9c1a752b6 [2022-11-19 08:05:03,799 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:05:03,799 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i [2022-11-19 08:05:03,840 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/data/81ab4a174/be4cb656fed44d74be8028518009c645/FLAG9c1a752b6 [2022-11-19 08:05:03,914 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/data/81ab4a174/be4cb656fed44d74be8028518009c645 [2022-11-19 08:05:03,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:05:03,918 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:05:03,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:05:03,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:05:03,926 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:05:03,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:03" (1/1) ... [2022-11-19 08:05:03,929 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e90e0a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:03, skipping insertion in model container [2022-11-19 08:05:03,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:03" (1/1) ... [2022-11-19 08:05:03,937 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:05:04,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:05:04,406 WARN L234 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_7af0945b-a312-409f-98d0-e3dc5d18ea9e/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4499,4512] [2022-11-19 08:05:04,414 WARN L234 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_7af0945b-a312-409f-98d0-e3dc5d18ea9e/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4559,4572] [2022-11-19 08:05:05,408 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:05,409 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:05,410 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:05,410 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:05,412 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:05,424 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:05,425 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:05,427 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:05,428 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:05,430 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:05,431 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:05,431 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:05,432 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:05,825 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-19 08:05:05,827 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-19 08:05:05,828 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-19 08:05:05,829 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-19 08:05:05,831 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-19 08:05:05,831 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-19 08:05:05,832 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-19 08:05:05,833 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-19 08:05:05,834 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-19 08:05:05,834 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-19 08:05:06,045 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-19 08:05:06,104 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,121 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,214 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,215 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,215 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,216 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,216 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,217 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,217 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,218 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,218 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,219 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,219 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,220 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,220 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,223 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,224 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,224 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,224 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,235 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,236 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,244 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,253 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,254 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,265 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,269 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,269 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,277 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:05:06,321 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:05:06,336 WARN L234 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_7af0945b-a312-409f-98d0-e3dc5d18ea9e/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4499,4512] [2022-11-19 08:05:06,337 WARN L234 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_7af0945b-a312-409f-98d0-e3dc5d18ea9e/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4559,4572] [2022-11-19 08:05:06,384 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,384 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,385 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,385 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,386 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,400 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,401 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,402 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,402 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,403 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,404 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,404 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,404 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,466 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-19 08:05:06,467 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-19 08:05:06,468 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-19 08:05:06,469 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-19 08:05:06,473 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-19 08:05:06,474 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-19 08:05:06,474 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-19 08:05:06,475 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-19 08:05:06,476 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-19 08:05:06,476 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-19 08:05:06,511 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-19 08:05:06,532 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,538 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,574 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,579 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,579 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,580 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,581 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,582 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,583 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,584 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,584 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,585 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,585 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,586 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,587 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,588 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,589 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,589 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,589 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,602 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,602 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,609 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,611 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,612 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,681 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,682 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,682 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:05:06,684 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:05:06,957 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:05:06,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:06 WrapperNode [2022-11-19 08:05:06,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:05:06,959 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:05:06,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:05:06,959 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:05:06,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:06" (1/1) ... [2022-11-19 08:05:07,076 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:06" (1/1) ... [2022-11-19 08:05:07,175 INFO L138 Inliner]: procedures = 697, calls = 1920, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 1059 [2022-11-19 08:05:07,175 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:05:07,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:05:07,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:05:07,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:05:07,186 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:06" (1/1) ... [2022-11-19 08:05:07,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:06" (1/1) ... [2022-11-19 08:05:07,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:06" (1/1) ... [2022-11-19 08:05:07,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:06" (1/1) ... [2022-11-19 08:05:07,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:06" (1/1) ... [2022-11-19 08:05:07,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:06" (1/1) ... [2022-11-19 08:05:07,248 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:06" (1/1) ... [2022-11-19 08:05:07,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:06" (1/1) ... [2022-11-19 08:05:07,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:05:07,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:05:07,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:05:07,265 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:05:07,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:06" (1/1) ... [2022-11-19 08:05:07,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:05:07,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:05:07,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:05:07,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:05:07,367 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-11-19 08:05:07,368 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-11-19 08:05:07,368 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-11-19 08:05:07,368 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-11-19 08:05:07,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:05:07,369 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-19 08:05:07,370 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-19 08:05:07,372 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-19 08:05:07,372 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-19 08:05:07,373 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-19 08:05:07,373 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-19 08:05:07,373 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-11-19 08:05:07,373 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-11-19 08:05:07,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 08:05:07,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:05:07,375 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-19 08:05:07,381 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-19 08:05:07,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 08:05:07,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 08:05:07,381 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_node [2022-11-19 08:05:07,382 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_node [2022-11-19 08:05:07,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:05:07,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:05:07,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:05:07,382 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-11-19 08:05:07,382 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-11-19 08:05:07,382 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-19 08:05:07,383 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-19 08:05:07,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:05:07,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:05:07,383 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-19 08:05:07,383 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-19 08:05:07,383 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-19 08:05:07,383 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-19 08:05:07,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 08:05:07,384 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-11-19 08:05:07,384 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-11-19 08:05:07,384 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-11-19 08:05:07,384 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-11-19 08:05:07,384 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-19 08:05:07,384 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-19 08:05:07,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 08:05:07,385 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 08:05:07,385 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 08:05:07,385 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 08:05:07,385 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-19 08:05:07,385 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-19 08:05:07,385 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2022-11-19 08:05:07,386 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2022-11-19 08:05:07,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:05:07,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:05:07,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 08:05:07,386 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-11-19 08:05:07,387 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-11-19 08:05:07,387 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-19 08:05:07,387 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-19 08:05:07,387 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-19 08:05:07,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-19 08:05:07,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:05:07,387 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-19 08:05:07,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-19 08:05:07,387 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-11-19 08:05:07,388 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-11-19 08:05:07,388 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 08:05:07,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 08:05:07,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:05:07,388 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2022-11-19 08:05:07,388 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2022-11-19 08:05:07,869 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:05:07,875 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:05:10,163 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:05:10,490 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:05:10,490 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-19 08:05:10,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:10 BoogieIcfgContainer [2022-11-19 08:05:10,498 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:05:10,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:05:10,502 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:05:10,505 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:05:10,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:05:03" (1/3) ... [2022-11-19 08:05:10,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65287701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:05:10, skipping insertion in model container [2022-11-19 08:05:10,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:06" (2/3) ... [2022-11-19 08:05:10,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65287701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:05:10, skipping insertion in model container [2022-11-19 08:05:10,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:10" (3/3) ... [2022-11-19 08:05:10,509 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_remove_harness.i [2022-11-19 08:05:10,529 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:05:10,529 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-19 08:05:10,612 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:05:10,623 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@66dde2c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:05:10,623 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-19 08:05:10,630 INFO L276 IsEmpty]: Start isEmpty. Operand has 389 states, 199 states have (on average 1.221105527638191) internal successors, (243), 204 states have internal predecessors, (243), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2022-11-19 08:05:10,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-19 08:05:10,654 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:05:10,655 INFO L195 NwaCegarLoop]: trace histogram [9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:05:10,655 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:05:10,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:05:10,663 INFO L85 PathProgramCache]: Analyzing trace with hash -555384632, now seen corresponding path program 1 times [2022-11-19 08:05:10,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:05:10,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922615436] [2022-11-19 08:05:10,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:05:10,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:05:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:05:11,881 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-11-19 08:05:11,882 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:05:11,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922615436] [2022-11-19 08:05:11,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922615436] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:05:11,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160286496] [2022-11-19 08:05:11,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:05:11,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:05:11,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:05:11,891 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:05:11,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:05:12,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:05:12,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 2394 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-19 08:05:12,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:05:12,612 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-11-19 08:05:12,612 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:05:12,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160286496] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:05:12,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:05:12,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2022-11-19 08:05:12,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221031151] [2022-11-19 08:05:12,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:05:12,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 08:05:12,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:05:12,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 08:05:12,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:05:12,655 INFO L87 Difference]: Start difference. First operand has 389 states, 199 states have (on average 1.221105527638191) internal successors, (243), 204 states have internal predecessors, (243), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 08:05:14,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:05:14,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:05:14,152 INFO L93 Difference]: Finished difference Result 710 states and 1085 transitions. [2022-11-19 08:05:14,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 08:05:14,155 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 106 [2022-11-19 08:05:14,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:05:14,169 INFO L225 Difference]: With dead ends: 710 [2022-11-19 08:05:14,169 INFO L226 Difference]: Without dead ends: 386 [2022-11-19 08:05:14,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:05:14,181 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:05:14,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 513 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-19 08:05:14,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2022-11-19 08:05:14,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2022-11-19 08:05:14,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 198 states have (on average 1.1919191919191918) internal successors, (236), 201 states have internal predecessors, (236), 160 states have call successors, (160), 27 states have call predecessors, (160), 26 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2022-11-19 08:05:14,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 554 transitions. [2022-11-19 08:05:14,290 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 554 transitions. Word has length 106 [2022-11-19 08:05:14,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:05:14,292 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 554 transitions. [2022-11-19 08:05:14,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 08:05:14,293 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 554 transitions. [2022-11-19 08:05:14,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-19 08:05:14,298 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:05:14,298 INFO L195 NwaCegarLoop]: trace histogram [11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:05:14,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:05:14,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-19 08:05:14,503 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:05:14,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:05:14,504 INFO L85 PathProgramCache]: Analyzing trace with hash -2113776520, now seen corresponding path program 1 times [2022-11-19 08:05:14,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:05:14,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653452060] [2022-11-19 08:05:14,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:05:14,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:05:14,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:05:15,082 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2022-11-19 08:05:15,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:05:15,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653452060] [2022-11-19 08:05:15,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653452060] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:05:15,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425401351] [2022-11-19 08:05:15,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:05:15,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:05:15,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:05:15,095 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:05:15,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:05:15,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:05:15,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 2468 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 08:05:15,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:05:15,873 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-11-19 08:05:15,873 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:05:15,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425401351] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:05:15,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:05:15,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-11-19 08:05:15,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818414302] [2022-11-19 08:05:15,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:05:15,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:05:15,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:05:15,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:05:15,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:05:15,877 INFO L87 Difference]: Start difference. First operand 386 states and 554 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-19 08:05:18,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:05:18,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:05:18,862 INFO L93 Difference]: Finished difference Result 744 states and 1084 transitions. [2022-11-19 08:05:18,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:05:18,864 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 118 [2022-11-19 08:05:18,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:05:18,868 INFO L225 Difference]: With dead ends: 744 [2022-11-19 08:05:18,868 INFO L226 Difference]: Without dead ends: 388 [2022-11-19 08:05:18,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:05:18,871 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 49 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 1837 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:05:18,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 1837 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-19 08:05:18,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2022-11-19 08:05:18,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 388. [2022-11-19 08:05:18,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 199 states have (on average 1.1909547738693467) internal successors, (237), 203 states have internal predecessors, (237), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (171), 158 states have call predecessors, (171), 158 states have call successors, (171) [2022-11-19 08:05:18,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 568 transitions. [2022-11-19 08:05:18,938 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 568 transitions. Word has length 118 [2022-11-19 08:05:18,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:05:18,941 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 568 transitions. [2022-11-19 08:05:18,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-19 08:05:18,942 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 568 transitions. [2022-11-19 08:05:18,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-19 08:05:18,951 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:05:18,951 INFO L195 NwaCegarLoop]: trace histogram [11, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:05:18,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:05:19,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:05:19,161 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:05:19,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:05:19,161 INFO L85 PathProgramCache]: Analyzing trace with hash 281380248, now seen corresponding path program 1 times [2022-11-19 08:05:19,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:05:19,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063881713] [2022-11-19 08:05:19,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:05:19,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:05:19,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:05:19,772 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-11-19 08:05:19,772 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:05:19,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063881713] [2022-11-19 08:05:19,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063881713] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:05:19,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392426239] [2022-11-19 08:05:19,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:05:19,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:05:19,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:05:19,774 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:05:19,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:05:20,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:05:20,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 2518 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 08:05:20,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:05:20,555 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-11-19 08:05:20,558 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:05:20,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392426239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:05:20,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:05:20,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-19 08:05:20,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267388838] [2022-11-19 08:05:20,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:05:20,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 08:05:20,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:05:20,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 08:05:20,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:05:20,563 INFO L87 Difference]: Start difference. First operand 388 states and 568 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-19 08:05:23,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:05:23,407 INFO L93 Difference]: Finished difference Result 759 states and 1143 transitions. [2022-11-19 08:05:23,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:05:23,407 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 126 [2022-11-19 08:05:23,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:05:23,412 INFO L225 Difference]: With dead ends: 759 [2022-11-19 08:05:23,412 INFO L226 Difference]: Without dead ends: 401 [2022-11-19 08:05:23,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-19 08:05:23,415 INFO L413 NwaCegarLoop]: 471 mSDtfsCounter, 64 mSDsluCounter, 2211 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 2682 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:05:23,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 2682 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-19 08:05:23,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2022-11-19 08:05:23,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 399. [2022-11-19 08:05:23,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 207 states have (on average 1.1932367149758454) internal successors, (247), 211 states have internal predecessors, (247), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (190), 161 states have call predecessors, (190), 160 states have call successors, (190) [2022-11-19 08:05:23,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 599 transitions. [2022-11-19 08:05:23,449 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 599 transitions. Word has length 126 [2022-11-19 08:05:23,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:05:23,449 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 599 transitions. [2022-11-19 08:05:23,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-19 08:05:23,450 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 599 transitions. [2022-11-19 08:05:23,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-19 08:05:23,452 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:05:23,452 INFO L195 NwaCegarLoop]: trace histogram [11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:05:23,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 08:05:23,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:05:23,672 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:05:23,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:05:23,672 INFO L85 PathProgramCache]: Analyzing trace with hash 80229462, now seen corresponding path program 1 times [2022-11-19 08:05:23,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:05:23,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845905304] [2022-11-19 08:05:23,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:05:23,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:05:23,771 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:05:23,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1589296194] [2022-11-19 08:05:23,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:05:23,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:05:23,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:05:23,773 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:05:23,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 08:05:24,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:05:24,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 2650 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 08:05:24,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:05:24,588 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-11-19 08:05:24,588 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:05:24,588 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:05:24,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845905304] [2022-11-19 08:05:24,589 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:05:24,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589296194] [2022-11-19 08:05:24,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589296194] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:05:24,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:05:24,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 08:05:24,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644473293] [2022-11-19 08:05:24,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:05:24,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:05:24,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:05:24,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:05:24,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:05:24,591 INFO L87 Difference]: Start difference. First operand 399 states and 599 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-19 08:05:27,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:05:27,058 INFO L93 Difference]: Finished difference Result 776 states and 1204 transitions. [2022-11-19 08:05:27,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:05:27,059 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 135 [2022-11-19 08:05:27,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:05:27,062 INFO L225 Difference]: With dead ends: 776 [2022-11-19 08:05:27,063 INFO L226 Difference]: Without dead ends: 407 [2022-11-19 08:05:27,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:05:27,066 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 60 mSDsluCounter, 1799 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 2282 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:05:27,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 2282 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-19 08:05:27,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-11-19 08:05:27,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 399. [2022-11-19 08:05:27,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 207 states have (on average 1.1932367149758454) internal successors, (247), 211 states have internal predecessors, (247), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (190), 161 states have call predecessors, (190), 160 states have call successors, (190) [2022-11-19 08:05:27,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 599 transitions. [2022-11-19 08:05:27,095 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 599 transitions. Word has length 135 [2022-11-19 08:05:27,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:05:27,096 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 599 transitions. [2022-11-19 08:05:27,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-19 08:05:27,096 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 599 transitions. [2022-11-19 08:05:27,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-19 08:05:27,098 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:05:27,098 INFO L195 NwaCegarLoop]: trace histogram [11, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:05:27,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 08:05:27,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:05:27,308 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:05:27,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:05:27,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1121658856, now seen corresponding path program 1 times [2022-11-19 08:05:27,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:05:27,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275993941] [2022-11-19 08:05:27,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:05:27,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:05:27,436 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:05:27,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1208691871] [2022-11-19 08:05:27,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:05:27,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:05:27,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:05:27,438 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:05:27,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 08:05:28,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:05:28,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 2704 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 08:05:28,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:05:28,319 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-11-19 08:05:28,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:05:28,319 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:05:28,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275993941] [2022-11-19 08:05:28,320 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:05:28,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208691871] [2022-11-19 08:05:28,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208691871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:05:28,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:05:28,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 08:05:28,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540175026] [2022-11-19 08:05:28,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:05:28,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:05:28,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:05:28,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:05:28,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:05:28,322 INFO L87 Difference]: Start difference. First operand 399 states and 599 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2022-11-19 08:05:32,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:05:33,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:05:33,294 INFO L93 Difference]: Finished difference Result 778 states and 1196 transitions. [2022-11-19 08:05:33,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 08:05:33,295 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 143 [2022-11-19 08:05:33,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:05:33,299 INFO L225 Difference]: With dead ends: 778 [2022-11-19 08:05:33,299 INFO L226 Difference]: Without dead ends: 409 [2022-11-19 08:05:33,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:05:33,303 INFO L413 NwaCegarLoop]: 466 mSDtfsCounter, 83 mSDsluCounter, 2623 mSDsCounter, 0 mSdLazyCounter, 787 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 3089 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:05:33,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 3089 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 787 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-19 08:05:33,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2022-11-19 08:05:33,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 399. [2022-11-19 08:05:33,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 207 states have (on average 1.1932367149758454) internal successors, (247), 211 states have internal predecessors, (247), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (190), 161 states have call predecessors, (190), 160 states have call successors, (190) [2022-11-19 08:05:33,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 599 transitions. [2022-11-19 08:05:33,336 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 599 transitions. Word has length 143 [2022-11-19 08:05:33,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:05:33,336 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 599 transitions. [2022-11-19 08:05:33,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2022-11-19 08:05:33,337 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 599 transitions. [2022-11-19 08:05:33,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-19 08:05:33,340 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:05:33,340 INFO L195 NwaCegarLoop]: trace histogram [11, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:05:33,355 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-19 08:05:33,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:05:33,550 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:05:33,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:05:33,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1813581476, now seen corresponding path program 2 times [2022-11-19 08:05:33,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:05:33,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829744286] [2022-11-19 08:05:33,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:05:33,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:05:33,673 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:05:33,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [413509295] [2022-11-19 08:05:33,674 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:05:33,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:05:33,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:05:33,675 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:05:33,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-19 08:05:34,787 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-19 08:05:34,788 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:05:34,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 1881 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 08:05:34,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:05:34,847 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2022-11-19 08:05:34,847 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:05:34,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:05:34,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829744286] [2022-11-19 08:05:34,847 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:05:34,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413509295] [2022-11-19 08:05:34,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413509295] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:05:34,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:05:34,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:05:34,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154052233] [2022-11-19 08:05:34,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:05:34,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:05:34,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:05:34,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:05:34,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:05:34,851 INFO L87 Difference]: Start difference. First operand 399 states and 599 transitions. Second operand has 5 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-19 08:05:36,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:05:38,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:05:38,301 INFO L93 Difference]: Finished difference Result 730 states and 1127 transitions. [2022-11-19 08:05:38,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:05:38,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 152 [2022-11-19 08:05:38,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:05:38,305 INFO L225 Difference]: With dead ends: 730 [2022-11-19 08:05:38,305 INFO L226 Difference]: Without dead ends: 399 [2022-11-19 08:05:38,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:05:38,309 INFO L413 NwaCegarLoop]: 474 mSDtfsCounter, 0 mSDsluCounter, 1364 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1838 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:05:38,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1838 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-19 08:05:38,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2022-11-19 08:05:38,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 399. [2022-11-19 08:05:38,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 207 states have (on average 1.1932367149758454) internal successors, (247), 211 states have internal predecessors, (247), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (189), 161 states have call predecessors, (189), 160 states have call successors, (189) [2022-11-19 08:05:38,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 598 transitions. [2022-11-19 08:05:38,331 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 598 transitions. Word has length 152 [2022-11-19 08:05:38,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:05:38,331 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 598 transitions. [2022-11-19 08:05:38,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-19 08:05:38,332 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 598 transitions. [2022-11-19 08:05:38,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-19 08:05:38,334 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:05:38,334 INFO L195 NwaCegarLoop]: trace histogram [11, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:05:38,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-19 08:05:38,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:05:38,544 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:05:38,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:05:38,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1704981436, now seen corresponding path program 3 times [2022-11-19 08:05:38,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:05:38,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633618380] [2022-11-19 08:05:38,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:05:38,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:05:38,675 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:05:38,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [396942343] [2022-11-19 08:05:38,676 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:05:38,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:05:38,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:05:38,677 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:05:38,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-19 08:05:39,169 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:05:39,169 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:05:39,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-19 08:05:39,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:05:39,382 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 94 proven. 2 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-11-19 08:05:39,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:05:39,834 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-11-19 08:05:39,834 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:05:39,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633618380] [2022-11-19 08:05:39,835 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:05:39,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396942343] [2022-11-19 08:05:39,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [396942343] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:05:39,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1563409463] [2022-11-19 08:05:39,862 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2022-11-19 08:05:39,862 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:05:39,866 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:05:39,871 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:05:39,871 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:05:43,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:05:44,330 INFO L217 Elim1Store]: Index analysis took 507 ms [2022-11-19 08:06:14,478 WARN L233 SmtUtils]: Spent 30.06s on a formula simplification. DAG size of input: 2150 DAG size of output: 1173 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 08:06:14,485 INFO L321 Elim1Store]: treesize reduction 3510, result has 33.3 percent of original size [2022-11-19 08:06:14,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 198 select indices, 198 select index equivalence classes, 19308 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 390 case distinctions, treesize of input 997 treesize of output 2365 [2022-11-19 08:06:17,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:06:17,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 196 select indices, 196 select index equivalence classes, 19307 disjoint index pairs (out of 19110 index pairs), introduced 196 new quantified variables, introduced 0 case distinctions, treesize of input 987 treesize of output 1574 [2022-11-19 08:07:40,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:40,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 43 [2022-11-19 08:07:40,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:40,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 43 [2022-11-19 08:07:40,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 08:07:40,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:40,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:40,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 29 [2022-11-19 08:07:44,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,333 INFO L217 Elim1Store]: Index analysis took 133 ms [2022-11-19 08:07:44,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 57 select indices, 57 select index equivalence classes, 1055 disjoint index pairs (out of 1596 index pairs), introduced 57 new quantified variables, introduced 0 case distinctions, treesize of input 588 treesize of output 260 [2022-11-19 08:07:44,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:44,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 197 select indices, 197 select index equivalence classes, 19307 disjoint index pairs (out of 19306 index pairs), introduced 197 new quantified variables, introduced 0 case distinctions, treesize of input 986 treesize of output 592 [2022-11-19 08:07:45,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:45,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:45,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:45,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:45,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:45,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:45,513 INFO L217 Elim1Store]: Index analysis took 132 ms [2022-11-19 08:07:45,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-19 08:07:46,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:46,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 198 select indices, 198 select index equivalence classes, 19503 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 0 case distinctions, treesize of input 991 treesize of output 595 [2022-11-19 08:07:46,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:46,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:46,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:46,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:46,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:46,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:46,777 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-19 08:07:54,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 197 select indices, 197 select index equivalence classes, 19307 disjoint index pairs (out of 19306 index pairs), introduced 197 new quantified variables, introduced 0 case distinctions, treesize of input 986 treesize of output 592 [2022-11-19 08:07:54,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:54,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 57 select indices, 57 select index equivalence classes, 1055 disjoint index pairs (out of 1596 index pairs), introduced 57 new quantified variables, introduced 0 case distinctions, treesize of input 588 treesize of output 260 [2022-11-19 08:07:55,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:55,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:55,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:55,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:55,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:55,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:55,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-19 08:07:55,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:55,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 198 select indices, 198 select index equivalence classes, 19503 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 0 case distinctions, treesize of input 991 treesize of output 595 [2022-11-19 08:07:56,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:56,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:56,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:56,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:56,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:56,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:07:56,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 193 select indices, 193 select index equivalence classes, 16855 disjoint index pairs (out of 18528 index pairs), introduced 193 new quantified variables, introduced 0 case distinctions, treesize of input 1736 treesize of output 580 [2022-11-19 08:08:13,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-19 08:08:13,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2022-11-19 08:08:13,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2022-11-19 08:08:13,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-19 08:08:13,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2022-11-19 08:08:13,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2022-11-19 08:08:28,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-19 08:08:29,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2022-11-19 08:08:29,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2022-11-19 08:08:29,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-19 08:08:29,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2022-11-19 08:08:29,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2022-11-19 08:08:31,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2159 treesize of output 2149 [2022-11-19 08:08:32,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2163 treesize of output 2142 [2022-11-19 08:08:32,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2159 treesize of output 2149 [2022-11-19 08:08:33,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 08:08:46,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 08:08:46,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 08:08:46,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 08:08:46,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 08:08:46,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 08:08:46,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 08:08:46,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:08:46,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 08:08:46,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 08:08:46,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 08:08:46,973 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:08:46,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 38 [2022-11-19 08:08:47,033 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:08:47,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 38 [2022-11-19 08:08:47,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 08:08:47,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 08:08:47,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 08:08:47,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-19 08:08:47,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2022-11-19 08:08:47,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-19 08:08:47,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2022-11-19 08:08:49,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 2155 treesize of output 2127 [2022-11-19 08:08:49,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 2131 treesize of output 2103 [2022-11-19 08:08:49,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2099 treesize of output 2075 [2022-11-19 08:09:06,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 2155 treesize of output 2127 [2022-11-19 08:09:06,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2123 treesize of output 2099 [2022-11-19 08:09:06,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 2107 treesize of output 2079 [2022-11-19 08:10:49,600 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 08:10:49,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 197 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 237 treesize of output 233 [2022-11-19 08:10:49,993 INFO L321 Elim1Store]: treesize reduction 118, result has 13.2 percent of original size [2022-11-19 08:10:49,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 197 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 138 treesize of output 157 [2022-11-19 08:10:50,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 322 treesize of output 314 [2022-11-19 08:10:50,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 89 [2022-11-19 08:10:50,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 99 [2022-11-19 08:10:50,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 99 [2022-11-19 08:10:51,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-19 08:10:51,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:10:51,351 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: no need to replace index at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:333) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructDerEnabler(DerPreprocessor.java:187) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.(DerPreprocessor.java:144) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:353) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:122) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:627) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:606) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:528) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:285) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:119) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-19 08:10:51,357 INFO L158 Benchmark]: Toolchain (without parser) took 347437.87ms. Allocated memory was 155.2MB in the beginning and 708.8MB in the end (delta: 553.6MB). Free memory was 114.2MB in the beginning and 334.5MB in the end (delta: -220.3MB). Peak memory consumption was 466.3MB. Max. memory is 16.1GB. [2022-11-19 08:10:51,357 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 96.5MB. Free memory was 48.7MB in the beginning and 48.6MB in the end (delta: 91.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:10:51,358 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3035.82ms. Allocated memory is still 155.2MB. Free memory was 114.2MB in the beginning and 96.2MB in the end (delta: 18.0MB). Peak memory consumption was 89.9MB. Max. memory is 16.1GB. [2022-11-19 08:10:51,358 INFO L158 Benchmark]: Boogie Procedure Inliner took 216.42ms. Allocated memory is still 155.2MB. Free memory was 96.2MB in the beginning and 84.8MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 08:10:51,359 INFO L158 Benchmark]: Boogie Preprocessor took 88.68ms. Allocated memory is still 155.2MB. Free memory was 84.8MB in the beginning and 75.2MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 08:10:51,359 INFO L158 Benchmark]: RCFGBuilder took 3233.70ms. Allocated memory was 155.2MB in the beginning and 262.1MB in the end (delta: 107.0MB). Free memory was 75.2MB in the beginning and 168.4MB in the end (delta: -93.2MB). Peak memory consumption was 86.1MB. Max. memory is 16.1GB. [2022-11-19 08:10:51,360 INFO L158 Benchmark]: TraceAbstraction took 340854.53ms. Allocated memory was 262.1MB in the beginning and 708.8MB in the end (delta: 446.7MB). Free memory was 167.4MB in the beginning and 334.5MB in the end (delta: -167.1MB). Peak memory consumption was 414.1MB. Max. memory is 16.1GB. [2022-11-19 08:10:51,362 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 96.5MB. Free memory was 48.7MB in the beginning and 48.6MB in the end (delta: 91.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3035.82ms. Allocated memory is still 155.2MB. Free memory was 114.2MB in the beginning and 96.2MB in the end (delta: 18.0MB). Peak memory consumption was 89.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 216.42ms. Allocated memory is still 155.2MB. Free memory was 96.2MB in the beginning and 84.8MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.68ms. Allocated memory is still 155.2MB. Free memory was 84.8MB in the beginning and 75.2MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 3233.70ms. Allocated memory was 155.2MB in the beginning and 262.1MB in the end (delta: 107.0MB). Free memory was 75.2MB in the beginning and 168.4MB in the end (delta: -93.2MB). Peak memory consumption was 86.1MB. Max. memory is 16.1GB. * TraceAbstraction took 340854.53ms. Allocated memory was 262.1MB in the beginning and 708.8MB in the end (delta: 446.7MB). Free memory was 167.4MB in the beginning and 334.5MB in the end (delta: -167.1MB). Peak memory consumption was 414.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: no need to replace index de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: no need to replace index: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:333) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-19 08:10:51,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1ebada516f0ccae5e55b91f6e0fe5802f70171054dc79c047f46877ad506c65e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:10:53,566 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:10:53,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:10:53,598 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:10:53,602 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:10:53,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:10:53,608 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:10:53,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:10:53,615 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:10:53,622 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:10:53,623 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:10:53,624 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:10:53,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:10:53,625 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:10:53,626 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:10:53,627 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:10:53,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:10:53,629 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:10:53,631 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:10:53,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:10:53,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:10:53,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:10:53,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:10:53,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:10:53,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:10:53,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:10:53,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:10:53,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:10:53,642 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:10:53,643 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:10:53,643 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:10:53,644 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:10:53,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:10:53,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:10:53,647 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:10:53,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:10:53,648 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:10:53,648 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:10:53,648 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:10:53,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:10:53,650 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:10:53,651 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-19 08:10:53,675 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:10:53,675 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:10:53,675 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:10:53,676 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:10:53,676 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:10:53,677 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:10:53,677 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:10:53,677 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:10:53,678 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:10:53,678 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:10:53,678 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:10:53,678 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:10:53,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:10:53,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:10:53,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:10:53,680 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:10:53,680 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:10:53,680 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 08:10:53,680 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 08:10:53,681 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 08:10:53,681 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:10:53,681 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:10:53,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:10:53,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:10:53,682 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 08:10:53,682 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:10:53,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:10:53,682 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:10:53,683 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:10:53,683 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:10:53,683 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 08:10:53,683 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 08:10:53,683 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:10:53,684 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:10:53,684 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 08:10:53,684 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_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ebada516f0ccae5e55b91f6e0fe5802f70171054dc79c047f46877ad506c65e [2022-11-19 08:10:54,059 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:10:54,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:10:54,087 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:10:54,089 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:10:54,090 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:10:54,092 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i [2022-11-19 08:10:54,173 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/data/9a653055b/1716cf4193be4de7ab48a13cb29eb073/FLAG3688b5e2c [2022-11-19 08:10:55,048 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:10:55,049 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i [2022-11-19 08:10:55,088 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/data/9a653055b/1716cf4193be4de7ab48a13cb29eb073/FLAG3688b5e2c [2022-11-19 08:10:55,179 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/data/9a653055b/1716cf4193be4de7ab48a13cb29eb073 [2022-11-19 08:10:55,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:10:55,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:10:55,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:10:55,190 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:10:55,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:10:55,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:10:55" (1/1) ... [2022-11-19 08:10:55,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d99b97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:55, skipping insertion in model container [2022-11-19 08:10:55,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:10:55" (1/1) ... [2022-11-19 08:10:55,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:10:55,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:10:55,655 WARN L234 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_7af0945b-a312-409f-98d0-e3dc5d18ea9e/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4499,4512] [2022-11-19 08:10:55,662 WARN L234 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_7af0945b-a312-409f-98d0-e3dc5d18ea9e/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4559,4572] [2022-11-19 08:10:56,542 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:56,543 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:56,544 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:56,544 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:56,546 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:56,559 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:56,560 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:56,562 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:56,563 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:56,564 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:56,566 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:56,566 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:56,567 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,001 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-19 08:10:57,002 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-19 08:10:57,003 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-19 08:10:57,005 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-19 08:10:57,006 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-19 08:10:57,015 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-19 08:10:57,016 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-19 08:10:57,017 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-19 08:10:57,018 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-19 08:10:57,020 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-19 08:10:57,177 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-19 08:10:57,207 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,215 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,292 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,293 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,294 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,295 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,297 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,297 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,298 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,301 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,302 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,302 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,302 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,303 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,303 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,308 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,308 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,309 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,309 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,324 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,325 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,343 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,345 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,345 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,373 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,373 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,374 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:10:57,427 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-19 08:10:57,505 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:10:57,512 WARN L234 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_7af0945b-a312-409f-98d0-e3dc5d18ea9e/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4499,4512] [2022-11-19 08:10:57,515 WARN L234 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_7af0945b-a312-409f-98d0-e3dc5d18ea9e/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4559,4572] [2022-11-19 08:10:57,572 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,577 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,578 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,578 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,579 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,589 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,590 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,591 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,591 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,593 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,593 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,594 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,594 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,636 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-19 08:10:57,637 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-19 08:10:57,639 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-19 08:10:57,640 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-19 08:10:57,641 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-19 08:10:57,641 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-19 08:10:57,642 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-19 08:10:57,643 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-19 08:10:57,643 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-19 08:10:57,644 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-19 08:10:57,672 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-19 08:10:57,700 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,705 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,780 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,780 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,781 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,782 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,782 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,783 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,785 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,785 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,786 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,787 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,787 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,788 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,788 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,789 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,790 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,791 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,791 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,795 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,796 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,810 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,811 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,812 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,824 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,824 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,825 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:10:57,851 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:10:57,875 WARN L234 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_7af0945b-a312-409f-98d0-e3dc5d18ea9e/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4499,4512] [2022-11-19 08:10:57,876 WARN L234 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_7af0945b-a312-409f-98d0-e3dc5d18ea9e/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4559,4572] [2022-11-19 08:10:57,914 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,915 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,915 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,917 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,918 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,922 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,923 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,924 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,924 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,925 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,925 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,926 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,926 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:57,957 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-19 08:10:57,957 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-19 08:10:57,958 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-19 08:10:57,959 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-19 08:10:57,961 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-19 08:10:57,961 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-19 08:10:57,962 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-19 08:10:57,962 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-19 08:10:57,963 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-19 08:10:57,963 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-19 08:10:58,007 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-19 08:10:58,019 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:58,023 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:58,051 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:58,053 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:58,053 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:58,054 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:58,054 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:58,054 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:58,055 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:58,055 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:58,056 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:58,057 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:58,060 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:58,060 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:58,060 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:58,062 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:58,063 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:58,063 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:58,064 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:58,067 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:58,067 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:58,080 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:58,081 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:58,082 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:58,086 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:58,086 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:58,087 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 08:10:58,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:10:58,446 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:10:58,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:58 WrapperNode [2022-11-19 08:10:58,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:10:58,448 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:10:58,448 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:10:58,448 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:10:58,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:58" (1/1) ... [2022-11-19 08:10:58,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:58" (1/1) ... [2022-11-19 08:10:58,696 INFO L138 Inliner]: procedures = 717, calls = 1920, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 1040 [2022-11-19 08:10:58,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:10:58,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:10:58,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:10:58,698 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:10:58,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:58" (1/1) ... [2022-11-19 08:10:58,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:58" (1/1) ... [2022-11-19 08:10:58,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:58" (1/1) ... [2022-11-19 08:10:58,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:58" (1/1) ... [2022-11-19 08:10:58,795 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:58" (1/1) ... [2022-11-19 08:10:58,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:58" (1/1) ... [2022-11-19 08:10:58,824 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:58" (1/1) ... [2022-11-19 08:10:58,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:58" (1/1) ... [2022-11-19 08:10:58,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:10:58,843 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:10:58,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:10:58,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:10:58,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:58" (1/1) ... [2022-11-19 08:10:58,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:10:58,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:10:58,880 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:10:58,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:10:58,926 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-11-19 08:10:58,926 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-11-19 08:10:58,926 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-11-19 08:10:58,926 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-11-19 08:10:58,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:10:58,926 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-19 08:10:58,927 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-19 08:10:58,927 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-19 08:10:58,927 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-19 08:10:58,927 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-19 08:10:58,927 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-19 08:10:58,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-19 08:10:58,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-19 08:10:58,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-19 08:10:58,928 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-11-19 08:10:58,928 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-11-19 08:10:58,928 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-19 08:10:58,928 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-19 08:10:58,928 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 08:10:58,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 08:10:58,929 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_node [2022-11-19 08:10:58,929 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_node [2022-11-19 08:10:58,930 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-19 08:10:58,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-19 08:10:58,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:10:58,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:10:58,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:10:58,930 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-11-19 08:10:58,930 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-11-19 08:10:58,931 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-19 08:10:58,931 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-19 08:10:58,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:10:58,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:10:58,931 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-19 08:10:58,931 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-19 08:10:58,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-19 08:10:58,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-19 08:10:58,932 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-19 08:10:58,932 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-19 08:10:58,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 08:10:58,932 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-11-19 08:10:58,932 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-11-19 08:10:58,932 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-11-19 08:10:58,932 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-11-19 08:10:58,933 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-19 08:10:58,933 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-19 08:10:58,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 08:10:58,933 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 08:10:58,933 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 08:10:58,933 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 08:10:58,933 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-19 08:10:58,934 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-19 08:10:58,934 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2022-11-19 08:10:58,934 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2022-11-19 08:10:58,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:10:58,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:10:58,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-19 08:10:58,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 08:10:58,934 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-11-19 08:10:58,935 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-11-19 08:10:58,935 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-19 08:10:58,935 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-19 08:10:58,935 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-19 08:10:58,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-19 08:10:58,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-19 08:10:58,935 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-19 08:10:58,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-19 08:10:58,936 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-11-19 08:10:58,936 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-11-19 08:10:58,936 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2022-11-19 08:10:58,936 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2022-11-19 08:10:59,403 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:10:59,408 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:11:05,299 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:11:05,317 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:11:05,319 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-19 08:11:05,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:11:05 BoogieIcfgContainer [2022-11-19 08:11:05,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:11:05,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:11:05,327 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:11:05,331 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:11:05,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:10:55" (1/3) ... [2022-11-19 08:11:05,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66f5da0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:11:05, skipping insertion in model container [2022-11-19 08:11:05,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:58" (2/3) ... [2022-11-19 08:11:05,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66f5da0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:11:05, skipping insertion in model container [2022-11-19 08:11:05,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:11:05" (3/3) ... [2022-11-19 08:11:05,338 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_remove_harness.i [2022-11-19 08:11:05,358 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:11:05,358 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-19 08:11:05,451 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:11:05,460 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@578b0a01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:11:05,460 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-19 08:11:05,470 INFO L276 IsEmpty]: Start isEmpty. Operand has 448 states, 258 states have (on average 1.2674418604651163) internal successors, (327), 263 states have internal predecessors, (327), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2022-11-19 08:11:05,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-19 08:11:05,504 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:05,505 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:11:05,506 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:11:05,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:05,517 INFO L85 PathProgramCache]: Analyzing trace with hash 236384645, now seen corresponding path program 1 times [2022-11-19 08:11:05,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:11:05,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1497372276] [2022-11-19 08:11:05,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:05,537 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:11:05,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:11:05,542 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:11:05,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-19 08:11:06,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:06,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 1606 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-19 08:11:06,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:06,790 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2022-11-19 08:11:06,790 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:11:06,791 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:11:06,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1497372276] [2022-11-19 08:11:06,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1497372276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:06,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:11:06,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:11:06,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853589258] [2022-11-19 08:11:06,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:06,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 08:11:06,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:11:06,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 08:11:06,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:11:06,829 INFO L87 Difference]: Start difference. First operand has 448 states, 258 states have (on average 1.2674418604651163) internal successors, (327), 263 states have internal predecessors, (327), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 08:11:06,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:06,979 INFO L93 Difference]: Finished difference Result 883 states and 1408 transitions. [2022-11-19 08:11:06,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 08:11:06,981 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 141 [2022-11-19 08:11:06,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:06,995 INFO L225 Difference]: With dead ends: 883 [2022-11-19 08:11:06,995 INFO L226 Difference]: Without dead ends: 441 [2022-11-19 08:11:07,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:11:07,011 INFO L413 NwaCegarLoop]: 634 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:07,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:11:07,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-11-19 08:11:07,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2022-11-19 08:11:07,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 253 states have (on average 1.2292490118577075) internal successors, (311), 256 states have internal predecessors, (311), 160 states have call successors, (160), 27 states have call predecessors, (160), 26 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2022-11-19 08:11:07,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 629 transitions. [2022-11-19 08:11:07,105 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 629 transitions. Word has length 141 [2022-11-19 08:11:07,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:07,106 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 629 transitions. [2022-11-19 08:11:07,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 08:11:07,107 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 629 transitions. [2022-11-19 08:11:07,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-19 08:11:07,112 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:07,113 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:11:07,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:11:07,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:11:07,335 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:11:07,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:07,336 INFO L85 PathProgramCache]: Analyzing trace with hash 858158561, now seen corresponding path program 1 times [2022-11-19 08:11:07,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:11:07,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2138441970] [2022-11-19 08:11:07,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:07,339 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:11:07,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:11:07,340 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:11:07,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-19 08:11:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:08,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 1664 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:11:08,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:08,824 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-11-19 08:11:08,824 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:11:08,825 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:11:08,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2138441970] [2022-11-19 08:11:08,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2138441970] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:08,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:11:08,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:11:08,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103251236] [2022-11-19 08:11:08,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:08,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:11:08,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:11:08,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:11:08,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:11:08,829 INFO L87 Difference]: Start difference. First operand 441 states and 629 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-19 08:11:11,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:11,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:11,637 INFO L93 Difference]: Finished difference Result 848 states and 1227 transitions. [2022-11-19 08:11:11,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:11:11,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 156 [2022-11-19 08:11:11,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:11,650 INFO L225 Difference]: With dead ends: 848 [2022-11-19 08:11:11,650 INFO L226 Difference]: Without dead ends: 443 [2022-11-19 08:11:11,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:11:11,654 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 36 mSDsluCounter, 1721 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 2325 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:11,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 2325 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-11-19 08:11:11,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-11-19 08:11:11,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2022-11-19 08:11:11,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 254 states have (on average 1.2283464566929134) internal successors, (312), 258 states have internal predecessors, (312), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (172), 158 states have call predecessors, (172), 158 states have call successors, (172) [2022-11-19 08:11:11,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 644 transitions. [2022-11-19 08:11:11,727 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 644 transitions. Word has length 156 [2022-11-19 08:11:11,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:11,729 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 644 transitions. [2022-11-19 08:11:11,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-19 08:11:11,729 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 644 transitions. [2022-11-19 08:11:11,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-19 08:11:11,755 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:11,755 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:11:11,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:11:11,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:11:11,980 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:11:11,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:11,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1065029687, now seen corresponding path program 1 times [2022-11-19 08:11:11,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:11:11,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1629323573] [2022-11-19 08:11:11,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:11,984 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:11:11,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:11:11,985 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:11:12,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-19 08:11:13,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:13,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 1694 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 08:11:13,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:13,503 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-11-19 08:11:13,507 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:11:13,508 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:11:13,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1629323573] [2022-11-19 08:11:13,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1629323573] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:13,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:11:13,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:11:13,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772180018] [2022-11-19 08:11:13,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:13,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 08:11:13,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:11:13,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 08:11:13,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:11:13,513 INFO L87 Difference]: Start difference. First operand 443 states and 644 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-19 08:11:16,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:17,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:17,370 INFO L93 Difference]: Finished difference Result 871 states and 1300 transitions. [2022-11-19 08:11:17,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:11:17,371 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 164 [2022-11-19 08:11:17,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:17,377 INFO L225 Difference]: With dead ends: 871 [2022-11-19 08:11:17,378 INFO L226 Difference]: Without dead ends: 464 [2022-11-19 08:11:17,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:11:17,384 INFO L413 NwaCegarLoop]: 582 mSDtfsCounter, 88 mSDsluCounter, 2777 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 3359 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:17,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 3359 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 343 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-11-19 08:11:17,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-11-19 08:11:17,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 462. [2022-11-19 08:11:17,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 270 states have (on average 1.237037037037037) internal successors, (334), 274 states have internal predecessors, (334), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (191), 161 states have call predecessors, (191), 160 states have call successors, (191) [2022-11-19 08:11:17,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 687 transitions. [2022-11-19 08:11:17,439 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 687 transitions. Word has length 164 [2022-11-19 08:11:17,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:17,440 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 687 transitions. [2022-11-19 08:11:17,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-19 08:11:17,440 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 687 transitions. [2022-11-19 08:11:17,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-11-19 08:11:17,445 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:17,445 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:11:17,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-11-19 08:11:17,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:11:17,659 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:11:17,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:17,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1857914875, now seen corresponding path program 1 times [2022-11-19 08:11:17,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:11:17,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [989945728] [2022-11-19 08:11:17,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:17,662 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:11:17,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:11:17,663 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:11:17,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-19 08:11:18,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:19,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 1806 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 08:11:19,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:19,247 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-11-19 08:11:19,248 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:11:19,248 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:11:19,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [989945728] [2022-11-19 08:11:19,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [989945728] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:19,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:11:19,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 08:11:19,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164732244] [2022-11-19 08:11:19,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:19,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:11:19,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:11:19,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:11:19,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:11:19,250 INFO L87 Difference]: Start difference. First operand 462 states and 687 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-19 08:11:21,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:22,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:22,778 INFO L93 Difference]: Finished difference Result 896 states and 1375 transitions. [2022-11-19 08:11:22,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:11:22,779 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 179 [2022-11-19 08:11:22,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:22,783 INFO L225 Difference]: With dead ends: 896 [2022-11-19 08:11:22,784 INFO L226 Difference]: Without dead ends: 470 [2022-11-19 08:11:22,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:11:22,787 INFO L413 NwaCegarLoop]: 598 mSDtfsCounter, 59 mSDsluCounter, 2264 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 2862 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:22,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 2862 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 268 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-11-19 08:11:22,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2022-11-19 08:11:22,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 462. [2022-11-19 08:11:22,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 270 states have (on average 1.237037037037037) internal successors, (334), 274 states have internal predecessors, (334), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (191), 161 states have call predecessors, (191), 160 states have call successors, (191) [2022-11-19 08:11:22,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 687 transitions. [2022-11-19 08:11:22,816 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 687 transitions. Word has length 179 [2022-11-19 08:11:22,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:22,817 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 687 transitions. [2022-11-19 08:11:22,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-11-19 08:11:22,817 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 687 transitions. [2022-11-19 08:11:22,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-19 08:11:22,820 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:22,821 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:11:22,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-19 08:11:23,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:11:23,043 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:11:23,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:23,043 INFO L85 PathProgramCache]: Analyzing trace with hash -276070034, now seen corresponding path program 1 times [2022-11-19 08:11:23,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:11:23,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1861214779] [2022-11-19 08:11:23,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:23,045 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:11:23,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:11:23,046 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:11:23,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-19 08:11:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:24,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 1854 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-19 08:11:24,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:24,992 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-11-19 08:11:24,992 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:11:24,993 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:11:24,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1861214779] [2022-11-19 08:11:24,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1861214779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:24,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:11:24,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 08:11:24,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264549994] [2022-11-19 08:11:24,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:24,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:11:24,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:11:24,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:11:24,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:11:24,996 INFO L87 Difference]: Start difference. First operand 462 states and 687 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2022-11-19 08:11:28,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:29,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:29,990 INFO L93 Difference]: Finished difference Result 918 states and 1394 transitions. [2022-11-19 08:11:29,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-19 08:11:29,991 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 195 [2022-11-19 08:11:29,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:29,995 INFO L225 Difference]: With dead ends: 918 [2022-11-19 08:11:29,995 INFO L226 Difference]: Without dead ends: 492 [2022-11-19 08:11:29,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:11:29,998 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 131 mSDsluCounter, 3315 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 3898 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:29,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 3898 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 587 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-11-19 08:11:30,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-11-19 08:11:30,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 474. [2022-11-19 08:11:30,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 280 states have (on average 1.2428571428571429) internal successors, (348), 284 states have internal predecessors, (348), 163 states have call successors, (163), 28 states have call predecessors, (163), 29 states have return successors, (192), 162 states have call predecessors, (192), 161 states have call successors, (192) [2022-11-19 08:11:30,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 703 transitions. [2022-11-19 08:11:30,023 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 703 transitions. Word has length 195 [2022-11-19 08:11:30,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:30,024 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 703 transitions. [2022-11-19 08:11:30,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2022-11-19 08:11:30,024 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 703 transitions. [2022-11-19 08:11:30,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-11-19 08:11:30,027 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:30,028 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:11:30,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-19 08:11:30,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:11:30,251 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:11:30,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:30,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1136665260, now seen corresponding path program 2 times [2022-11-19 08:11:30,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:11:30,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [602726056] [2022-11-19 08:11:30,253 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:11:30,253 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:11:30,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:11:30,254 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:11:30,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-19 08:11:32,556 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:11:32,556 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:32,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 1966 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 08:11:32,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:33,416 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-11-19 08:11:33,416 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:11:33,416 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:11:33,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [602726056] [2022-11-19 08:11:33,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [602726056] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:33,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:11:33,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 08:11:33,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426326230] [2022-11-19 08:11:33,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:33,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:11:33,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:11:33,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:11:33,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:11:33,419 INFO L87 Difference]: Start difference. First operand 474 states and 703 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-19 08:11:37,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:39,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:41,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:46,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:46,671 INFO L93 Difference]: Finished difference Result 948 states and 1468 transitions. [2022-11-19 08:11:46,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 08:11:46,674 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 210 [2022-11-19 08:11:46,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:46,679 INFO L225 Difference]: With dead ends: 948 [2022-11-19 08:11:46,679 INFO L226 Difference]: Without dead ends: 510 [2022-11-19 08:11:46,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:11:46,684 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 23 mSDsluCounter, 2329 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2969 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:46,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2969 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 264 Invalid, 3 Unknown, 0 Unchecked, 12.6s Time] [2022-11-19 08:11:46,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2022-11-19 08:11:46,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 482. [2022-11-19 08:11:46,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 288 states have (on average 1.2430555555555556) internal successors, (358), 292 states have internal predecessors, (358), 163 states have call successors, (163), 28 states have call predecessors, (163), 29 states have return successors, (192), 162 states have call predecessors, (192), 161 states have call successors, (192) [2022-11-19 08:11:46,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 713 transitions. [2022-11-19 08:11:46,713 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 713 transitions. Word has length 210 [2022-11-19 08:11:46,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:46,713 INFO L495 AbstractCegarLoop]: Abstraction has 482 states and 713 transitions. [2022-11-19 08:11:46,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-19 08:11:46,714 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 713 transitions. [2022-11-19 08:11:46,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-11-19 08:11:46,717 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:46,717 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:11:46,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-19 08:11:46,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:11:46,939 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:11:46,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:46,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1018223786, now seen corresponding path program 1 times [2022-11-19 08:11:46,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:11:46,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [608468675] [2022-11-19 08:11:46,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:46,941 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:11:46,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:11:46,942 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:11:46,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-19 08:11:48,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:48,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 1964 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-19 08:11:48,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:49,621 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-11-19 08:11:49,621 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:11:49,621 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:11:49,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [608468675] [2022-11-19 08:11:49,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [608468675] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:49,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:11:49,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:11:49,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495181901] [2022-11-19 08:11:49,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:49,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 08:11:49,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:11:49,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 08:11:49,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:11:49,623 INFO L87 Difference]: Start difference. First operand 482 states and 713 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-19 08:11:55,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:57,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:59,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:02,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:12:02,944 INFO L93 Difference]: Finished difference Result 958 states and 1478 transitions. [2022-11-19 08:12:02,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-19 08:12:02,947 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 210 [2022-11-19 08:12:02,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:12:02,951 INFO L225 Difference]: With dead ends: 958 [2022-11-19 08:12:02,952 INFO L226 Difference]: Without dead ends: 512 [2022-11-19 08:12:02,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:12:02,976 INFO L413 NwaCegarLoop]: 638 mSDtfsCounter, 20 mSDsluCounter, 2955 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 3593 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:12:02,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 3593 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 282 Invalid, 3 Unknown, 0 Unchecked, 12.4s Time] [2022-11-19 08:12:02,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2022-11-19 08:12:03,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 486. [2022-11-19 08:12:03,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 292 states have (on average 1.2397260273972603) internal successors, (362), 296 states have internal predecessors, (362), 163 states have call successors, (163), 28 states have call predecessors, (163), 29 states have return successors, (192), 162 states have call predecessors, (192), 161 states have call successors, (192) [2022-11-19 08:12:03,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 717 transitions. [2022-11-19 08:12:03,007 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 717 transitions. Word has length 210 [2022-11-19 08:12:03,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:12:03,008 INFO L495 AbstractCegarLoop]: Abstraction has 486 states and 717 transitions. [2022-11-19 08:12:03,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-19 08:12:03,008 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 717 transitions. [2022-11-19 08:12:03,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-11-19 08:12:03,012 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:12:03,013 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:12:03,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-19 08:12:03,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:12:03,231 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:12:03,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:12:03,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1243349464, now seen corresponding path program 1 times [2022-11-19 08:12:03,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:12:03,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [358095694] [2022-11-19 08:12:03,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:03,233 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:12:03,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:12:03,234 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:12:03,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-19 08:12:05,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:12:05,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 1961 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:12:05,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:05,525 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 132 proven. 3 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-11-19 08:12:05,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:06,014 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2022-11-19 08:12:06,014 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:12:06,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [358095694] [2022-11-19 08:12:06,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [358095694] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:12:06,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [42641173] [2022-11-19 08:12:06,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:06,015 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:12:06,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:12:06,022 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:12:06,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-11-19 08:12:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:12:07,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 1961 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 08:12:07,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:08,052 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-19 08:12:08,052 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:12:08,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [42641173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:12:08,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:12:08,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 7] total 11 [2022-11-19 08:12:08,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928173378] [2022-11-19 08:12:08,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:12:08,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:12:08,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:12:08,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:12:08,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-19 08:12:08,055 INFO L87 Difference]: Start difference. First operand 486 states and 717 transitions. Second operand has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2022-11-19 08:12:10,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:11,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:12:11,380 INFO L93 Difference]: Finished difference Result 902 states and 1352 transitions. [2022-11-19 08:12:11,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:12:11,381 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 210 [2022-11-19 08:12:11,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:12:11,385 INFO L225 Difference]: With dead ends: 902 [2022-11-19 08:12:11,385 INFO L226 Difference]: Without dead ends: 488 [2022-11-19 08:12:11,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 630 GetRequests, 619 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-19 08:12:11,389 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 82 mSDsluCounter, 2225 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 28 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 2822 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:12:11,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 2822 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 179 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-11-19 08:12:11,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-11-19 08:12:11,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 488. [2022-11-19 08:12:11,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 293 states have (on average 1.2389078498293515) internal successors, (363), 298 states have internal predecessors, (363), 163 states have call successors, (163), 28 states have call predecessors, (163), 30 states have return successors, (203), 162 states have call predecessors, (203), 161 states have call successors, (203) [2022-11-19 08:12:11,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 729 transitions. [2022-11-19 08:12:11,419 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 729 transitions. Word has length 210 [2022-11-19 08:12:11,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:12:11,420 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 729 transitions. [2022-11-19 08:12:11,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2022-11-19 08:12:11,420 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 729 transitions. [2022-11-19 08:12:11,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-11-19 08:12:11,424 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:12:11,425 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:12:11,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2022-11-19 08:12:11,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-19 08:12:11,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:12:11,833 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:12:11,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:12:11,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1098432894, now seen corresponding path program 1 times [2022-11-19 08:12:11,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:12:11,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [738532090] [2022-11-19 08:12:11,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:11,836 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:12:11,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:12:11,836 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:12:11,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-19 08:12:13,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:12:13,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 2103 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:12:13,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:14,304 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 174 proven. 3 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2022-11-19 08:12:14,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:14,797 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2022-11-19 08:12:14,797 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:12:14,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [738532090] [2022-11-19 08:12:14,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [738532090] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:12:14,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [900508353] [2022-11-19 08:12:14,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:14,798 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:12:14,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:12:14,799 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:12:14,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2022-11-19 08:12:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:12:16,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 2103 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-19 08:12:16,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:17,081 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-11-19 08:12:17,081 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:12:17,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [900508353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:12:17,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:12:17,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7, 7] total 12 [2022-11-19 08:12:17,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324326825] [2022-11-19 08:12:17,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:12:17,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 08:12:17,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:12:17,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 08:12:17,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:12:17,083 INFO L87 Difference]: Start difference. First operand 488 states and 729 transitions. Second operand has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 5 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2022-11-19 08:12:19,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:21,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:12:21,415 INFO L93 Difference]: Finished difference Result 907 states and 1377 transitions. [2022-11-19 08:12:21,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 08:12:21,416 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 5 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) Word has length 233 [2022-11-19 08:12:21,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:12:21,421 INFO L225 Difference]: With dead ends: 907 [2022-11-19 08:12:21,421 INFO L226 Difference]: Without dead ends: 491 [2022-11-19 08:12:21,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 703 GetRequests, 689 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-11-19 08:12:21,424 INFO L413 NwaCegarLoop]: 591 mSDtfsCounter, 105 mSDsluCounter, 2751 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 33 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 3342 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:12:21,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 3342 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 332 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-11-19 08:12:21,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-11-19 08:12:21,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 489. [2022-11-19 08:12:21,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 294 states have (on average 1.2380952380952381) internal successors, (364), 299 states have internal predecessors, (364), 163 states have call successors, (163), 28 states have call predecessors, (163), 30 states have return successors, (203), 162 states have call predecessors, (203), 161 states have call successors, (203) [2022-11-19 08:12:21,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 730 transitions. [2022-11-19 08:12:21,451 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 730 transitions. Word has length 233 [2022-11-19 08:12:21,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:12:21,452 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 730 transitions. [2022-11-19 08:12:21,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 5 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2022-11-19 08:12:21,452 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 730 transitions. [2022-11-19 08:12:21,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-11-19 08:12:21,454 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:12:21,454 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:12:21,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2022-11-19 08:12:21,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-19 08:12:21,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:12:21,871 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:12:21,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:12:21,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1232370673, now seen corresponding path program 1 times [2022-11-19 08:12:21,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:12:21,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1606769672] [2022-11-19 08:12:21,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:21,874 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:12:21,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:12:21,874 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:12:21,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-19 08:12:23,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:12:24,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 2258 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:12:24,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:24,578 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 224 proven. 3 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2022-11-19 08:12:24,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:25,054 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 411 trivial. 0 not checked. [2022-11-19 08:12:25,054 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:12:25,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1606769672] [2022-11-19 08:12:25,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1606769672] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:12:25,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2131207721] [2022-11-19 08:12:25,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:25,055 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:12:25,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:12:25,059 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:12:25,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2022-11-19 08:12:26,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:12:26,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 2258 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:12:26,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:26,996 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2022-11-19 08:12:26,996 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:12:26,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2131207721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:12:26,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:12:26,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 7] total 10 [2022-11-19 08:12:26,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070503360] [2022-11-19 08:12:26,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:12:26,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:12:26,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:12:26,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:12:26,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-19 08:12:27,000 INFO L87 Difference]: Start difference. First operand 489 states and 730 transitions. Second operand has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-19 08:12:28,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:12:28,220 INFO L93 Difference]: Finished difference Result 903 states and 1358 transitions. [2022-11-19 08:12:28,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:12:28,221 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) Word has length 264 [2022-11-19 08:12:28,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:12:28,225 INFO L225 Difference]: With dead ends: 903 [2022-11-19 08:12:28,226 INFO L226 Difference]: Without dead ends: 489 [2022-11-19 08:12:28,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 790 GetRequests, 781 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-19 08:12:28,229 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 2 mSDsluCounter, 1684 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2274 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:12:28,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2274 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-19 08:12:28,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2022-11-19 08:12:28,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2022-11-19 08:12:28,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 294 states have (on average 1.2346938775510203) internal successors, (363), 299 states have internal predecessors, (363), 163 states have call successors, (163), 28 states have call predecessors, (163), 30 states have return successors, (203), 162 states have call predecessors, (203), 161 states have call successors, (203) [2022-11-19 08:12:28,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 729 transitions. [2022-11-19 08:12:28,256 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 729 transitions. Word has length 264 [2022-11-19 08:12:28,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:12:28,257 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 729 transitions. [2022-11-19 08:12:28,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-19 08:12:28,257 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 729 transitions. [2022-11-19 08:12:28,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-11-19 08:12:28,259 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:12:28,259 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:12:28,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-19 08:12:28,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2022-11-19 08:12:28,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:12:28,683 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:12:28,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:12:28,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1480517167, now seen corresponding path program 1 times [2022-11-19 08:12:28,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:12:28,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [833345700] [2022-11-19 08:12:28,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:28,686 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:12:28,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:12:28,687 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:12:28,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-19 08:12:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:12:30,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 2260 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:12:30,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:31,277 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 224 proven. 3 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2022-11-19 08:12:31,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:31,771 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 411 trivial. 0 not checked. [2022-11-19 08:12:31,771 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:12:31,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [833345700] [2022-11-19 08:12:31,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [833345700] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:12:31,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [289079810] [2022-11-19 08:12:31,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:31,771 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:12:31,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:12:31,772 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:12:31,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2022-11-19 08:12:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:12:33,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 2260 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-19 08:12:33,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:34,429 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2022-11-19 08:12:34,430 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:12:34,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [289079810] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:12:34,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:12:34,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7, 7] total 13 [2022-11-19 08:12:34,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365609532] [2022-11-19 08:12:34,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:12:34,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:12:34,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:12:34,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:12:34,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-11-19 08:12:34,433 INFO L87 Difference]: Start difference. First operand 489 states and 729 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 5 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2022-11-19 08:12:37,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:38,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:12:38,854 INFO L93 Difference]: Finished difference Result 910 states and 1369 transitions. [2022-11-19 08:12:38,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 08:12:38,855 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 5 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 264 [2022-11-19 08:12:38,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:12:38,860 INFO L225 Difference]: With dead ends: 910 [2022-11-19 08:12:38,860 INFO L226 Difference]: Without dead ends: 501 [2022-11-19 08:12:38,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 793 GetRequests, 779 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-11-19 08:12:38,864 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 76 mSDsluCounter, 3357 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 32 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 3947 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:12:38,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 3947 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-11-19 08:12:38,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2022-11-19 08:12:38,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2022-11-19 08:12:38,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 300 states have (on average 1.2333333333333334) internal successors, (370), 305 states have internal predecessors, (370), 168 states have call successors, (168), 29 states have call predecessors, (168), 31 states have return successors, (208), 167 states have call predecessors, (208), 166 states have call successors, (208) [2022-11-19 08:12:38,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 746 transitions. [2022-11-19 08:12:38,891 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 746 transitions. Word has length 264 [2022-11-19 08:12:38,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:12:38,892 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 746 transitions. [2022-11-19 08:12:38,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 5 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2022-11-19 08:12:38,893 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 746 transitions. [2022-11-19 08:12:38,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2022-11-19 08:12:38,895 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:12:38,895 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:12:38,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-19 08:12:39,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2022-11-19 08:12:39,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:12:39,311 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:12:39,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:12:39,312 INFO L85 PathProgramCache]: Analyzing trace with hash -848747523, now seen corresponding path program 1 times [2022-11-19 08:12:39,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:12:39,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1132710126] [2022-11-19 08:12:39,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:39,315 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:12:39,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:12:39,316 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:12:39,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-19 08:12:41,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:12:41,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 2484 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:12:41,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:42,326 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 284 proven. 3 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2022-11-19 08:12:42,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:42,827 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2022-11-19 08:12:42,827 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:12:42,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1132710126] [2022-11-19 08:12:42,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1132710126] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:12:42,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [35217034] [2022-11-19 08:12:42,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:42,828 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:12:42,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:12:42,830 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:12:42,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2022-11-19 08:12:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:12:48,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 2484 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-19 08:12:48,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:51,499 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 267 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2022-11-19 08:12:51,500 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:12:51,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [35217034] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:12:51,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:12:51,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [7, 7] total 17 [2022-11-19 08:12:51,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149567586] [2022-11-19 08:12:51,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:12:51,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:12:51,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:12:51,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:12:51,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2022-11-19 08:12:51,502 INFO L87 Difference]: Start difference. First operand 501 states and 746 transitions. Second operand has 12 states, 11 states have (on average 10.0) internal successors, (110), 12 states have internal predecessors, (110), 7 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) [2022-11-19 08:12:58,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:13:05,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:05,542 INFO L93 Difference]: Finished difference Result 1022 states and 1607 transitions. [2022-11-19 08:13:05,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 08:13:05,544 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.0) internal successors, (110), 12 states have internal predecessors, (110), 7 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) Word has length 294 [2022-11-19 08:13:05,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:05,548 INFO L225 Difference]: With dead ends: 1022 [2022-11-19 08:13:05,549 INFO L226 Difference]: Without dead ends: 557 [2022-11-19 08:13:05,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 887 GetRequests, 866 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2022-11-19 08:13:05,553 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 117 mSDsluCounter, 3277 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 3867 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:05,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 3867 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 917 Invalid, 1 Unknown, 0 Unchecked, 12.4s Time] [2022-11-19 08:13:05,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-11-19 08:13:05,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 523. [2022-11-19 08:13:05,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 320 states have (on average 1.2375) internal successors, (396), 325 states have internal predecessors, (396), 168 states have call successors, (168), 29 states have call predecessors, (168), 33 states have return successors, (227), 169 states have call predecessors, (227), 166 states have call successors, (227) [2022-11-19 08:13:05,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 791 transitions. [2022-11-19 08:13:05,584 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 791 transitions. Word has length 294 [2022-11-19 08:13:05,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:05,585 INFO L495 AbstractCegarLoop]: Abstraction has 523 states and 791 transitions. [2022-11-19 08:13:05,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.0) internal successors, (110), 12 states have internal predecessors, (110), 7 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) [2022-11-19 08:13:05,585 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 791 transitions. [2022-11-19 08:13:05,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-11-19 08:13:05,587 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:05,588 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:13:05,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2022-11-19 08:13:05,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-19 08:13:06,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:06,008 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:13:06,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:06,008 INFO L85 PathProgramCache]: Analyzing trace with hash 453557913, now seen corresponding path program 1 times [2022-11-19 08:13:06,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:13:06,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1130003005] [2022-11-19 08:13:06,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:13:06,010 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:06,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:13:06,011 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:13:06,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-19 08:13:08,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:13:08,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 2262 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:13:08,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:08,301 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-11-19 08:13:08,301 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:13:08,301 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:13:08,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1130003005] [2022-11-19 08:13:08,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1130003005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:13:08,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:13:08,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:13:08,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938000369] [2022-11-19 08:13:08,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:13:08,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:13:08,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:13:08,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:13:08,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:13:08,307 INFO L87 Difference]: Start difference. First operand 523 states and 791 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-19 08:13:08,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:08,535 INFO L93 Difference]: Finished difference Result 1038 states and 1632 transitions. [2022-11-19 08:13:08,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:13:08,536 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 264 [2022-11-19 08:13:08,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:08,541 INFO L225 Difference]: With dead ends: 1038 [2022-11-19 08:13:08,541 INFO L226 Difference]: Without dead ends: 551 [2022-11-19 08:13:08,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:13:08,545 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 8 mSDsluCounter, 1929 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2580 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:08,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2580 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:13:08,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2022-11-19 08:13:08,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 539. [2022-11-19 08:13:08,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 336 states have (on average 1.2380952380952381) internal successors, (416), 341 states have internal predecessors, (416), 168 states have call successors, (168), 29 states have call predecessors, (168), 33 states have return successors, (227), 169 states have call predecessors, (227), 166 states have call successors, (227) [2022-11-19 08:13:08,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 811 transitions. [2022-11-19 08:13:08,578 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 811 transitions. Word has length 264 [2022-11-19 08:13:08,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:08,579 INFO L495 AbstractCegarLoop]: Abstraction has 539 states and 811 transitions. [2022-11-19 08:13:08,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-19 08:13:08,579 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 811 transitions. [2022-11-19 08:13:08,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-11-19 08:13:08,581 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:08,581 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:13:08,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-19 08:13:08,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:08,795 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:13:08,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:08,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1018872225, now seen corresponding path program 1 times [2022-11-19 08:13:08,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:13:08,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [949058323] [2022-11-19 08:13:08,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:13:08,798 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:08,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:13:08,799 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:13:08,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-19 08:13:10,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:13:11,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 2369 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:13:11,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:11,190 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 218 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2022-11-19 08:13:11,191 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:13:11,191 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:13:11,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [949058323] [2022-11-19 08:13:11,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [949058323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:13:11,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:13:11,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:13:11,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365796799] [2022-11-19 08:13:11,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:13:11,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:13:11,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:13:11,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:13:11,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:13:11,194 INFO L87 Difference]: Start difference. First operand 539 states and 811 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-19 08:13:11,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:11,383 INFO L93 Difference]: Finished difference Result 1042 states and 1657 transitions. [2022-11-19 08:13:11,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:13:11,386 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 279 [2022-11-19 08:13:11,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:11,390 INFO L225 Difference]: With dead ends: 1042 [2022-11-19 08:13:11,390 INFO L226 Difference]: Without dead ends: 539 [2022-11-19 08:13:11,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:13:11,412 INFO L413 NwaCegarLoop]: 632 mSDtfsCounter, 7 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1876 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:11,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1876 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:13:11,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2022-11-19 08:13:11,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2022-11-19 08:13:11,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 336 states have (on average 1.2321428571428572) internal successors, (414), 341 states have internal predecessors, (414), 168 states have call successors, (168), 29 states have call predecessors, (168), 33 states have return successors, (227), 169 states have call predecessors, (227), 166 states have call successors, (227) [2022-11-19 08:13:11,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 809 transitions. [2022-11-19 08:13:11,447 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 809 transitions. Word has length 279 [2022-11-19 08:13:11,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:11,448 INFO L495 AbstractCegarLoop]: Abstraction has 539 states and 809 transitions. [2022-11-19 08:13:11,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-19 08:13:11,448 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 809 transitions. [2022-11-19 08:13:11,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2022-11-19 08:13:11,451 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:11,451 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:13:11,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-19 08:13:11,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:11,675 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:13:11,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:11,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1230298429, now seen corresponding path program 1 times [2022-11-19 08:13:11,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:13:11,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1720775232] [2022-11-19 08:13:11,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:13:11,678 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:11,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:13:11,678 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:13:11,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-19 08:13:13,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:13:14,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 2376 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:13:14,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:14,504 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 254 proven. 3 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2022-11-19 08:13:14,504 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:14,995 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 471 trivial. 0 not checked. [2022-11-19 08:13:14,996 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:13:14,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1720775232] [2022-11-19 08:13:14,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1720775232] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:14,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1035258006] [2022-11-19 08:13:14,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:13:14,996 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:13:14,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:13:14,997 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:13:14,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2022-11-19 08:13:16,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:13:17,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 2376 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:13:17,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:18,139 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 270 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-11-19 08:13:18,139 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:13:18,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1035258006] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:13:18,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:13:18,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7, 7] total 14 [2022-11-19 08:13:18,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468744222] [2022-11-19 08:13:18,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:13:18,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:13:18,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:13:18,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:13:18,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2022-11-19 08:13:18,141 INFO L87 Difference]: Start difference. First operand 539 states and 809 transitions. Second operand has 9 states, 8 states have (on average 14.75) internal successors, (118), 9 states have internal predecessors, (118), 6 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 5 states have call predecessors, (30), 6 states have call successors, (30) [2022-11-19 08:13:22,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:13:24,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:24,743 INFO L93 Difference]: Finished difference Result 1008 states and 1533 transitions. [2022-11-19 08:13:24,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-19 08:13:24,744 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.75) internal successors, (118), 9 states have internal predecessors, (118), 6 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 5 states have call predecessors, (30), 6 states have call successors, (30) Word has length 281 [2022-11-19 08:13:24,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:24,750 INFO L225 Difference]: With dead ends: 1008 [2022-11-19 08:13:24,750 INFO L226 Difference]: Without dead ends: 541 [2022-11-19 08:13:24,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 849 GetRequests, 832 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-11-19 08:13:24,754 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 175 mSDsluCounter, 3758 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 4333 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:24,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 4333 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 717 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-11-19 08:13:24,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2022-11-19 08:13:24,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 536. [2022-11-19 08:13:24,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 334 states have (on average 1.2335329341317365) internal successors, (412), 338 states have internal predecessors, (412), 168 states have call successors, (168), 29 states have call predecessors, (168), 32 states have return successors, (213), 169 states have call predecessors, (213), 166 states have call successors, (213) [2022-11-19 08:13:24,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 793 transitions. [2022-11-19 08:13:24,785 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 793 transitions. Word has length 281 [2022-11-19 08:13:24,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:24,786 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 793 transitions. [2022-11-19 08:13:24,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.75) internal successors, (118), 9 states have internal predecessors, (118), 6 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 5 states have call predecessors, (30), 6 states have call successors, (30) [2022-11-19 08:13:24,786 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 793 transitions. [2022-11-19 08:13:24,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-11-19 08:13:24,788 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:24,789 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:13:24,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2022-11-19 08:13:25,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-19 08:13:25,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:25,205 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:13:25,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:25,206 INFO L85 PathProgramCache]: Analyzing trace with hash 630543217, now seen corresponding path program 1 times [2022-11-19 08:13:25,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:13:25,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1635762039] [2022-11-19 08:13:25,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:13:25,208 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:25,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:13:25,209 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:13:25,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-19 08:13:27,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:13:27,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 2492 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:13:27,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:28,187 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 286 proven. 3 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2022-11-19 08:13:28,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:28,807 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2022-11-19 08:13:28,807 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:13:28,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1635762039] [2022-11-19 08:13:28,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1635762039] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:28,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1904873099] [2022-11-19 08:13:28,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:13:28,852 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:13:28,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:13:28,855 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:13:28,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2022-11-19 08:13:43,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:13:43,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 2492 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:13:43,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:43,280 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 286 proven. 3 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2022-11-19 08:13:43,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:43,818 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2022-11-19 08:13:43,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1904873099] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:43,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97355051] [2022-11-19 08:13:43,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:13:43,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:13:43,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:13:43,821 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:13:43,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-11-19 08:13:46,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:13:46,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 2492 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:13:46,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:46,577 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 286 proven. 3 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2022-11-19 08:13:46,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:47,109 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2022-11-19 08:13:47,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97355051] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:47,109 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:13:47,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 7 [2022-11-19 08:13:47,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959828990] [2022-11-19 08:13:47,110 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:13:47,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 08:13:47,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:13:47,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 08:13:47,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:13:47,112 INFO L87 Difference]: Start difference. First operand 536 states and 793 transitions. Second operand has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 6 states have internal predecessors, (122), 3 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2022-11-19 08:13:49,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:13:49,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:49,490 INFO L93 Difference]: Finished difference Result 1022 states and 1529 transitions. [2022-11-19 08:13:49,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:13:49,491 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 6 states have internal predecessors, (122), 3 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) Word has length 298 [2022-11-19 08:13:49,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:49,496 INFO L225 Difference]: With dead ends: 1022 [2022-11-19 08:13:49,496 INFO L226 Difference]: Without dead ends: 553 [2022-11-19 08:13:49,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1782 GetRequests, 1777 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:13:49,500 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 8 mSDsluCounter, 3119 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 3748 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:49,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 3748 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-11-19 08:13:49,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-11-19 08:13:49,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 551. [2022-11-19 08:13:49,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 345 states have (on average 1.2347826086956522) internal successors, (426), 349 states have internal predecessors, (426), 171 states have call successors, (171), 29 states have call predecessors, (171), 33 states have return successors, (223), 173 states have call predecessors, (223), 169 states have call successors, (223) [2022-11-19 08:13:49,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 820 transitions. [2022-11-19 08:13:49,530 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 820 transitions. Word has length 298 [2022-11-19 08:13:49,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:49,531 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 820 transitions. [2022-11-19 08:13:49,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 6 states have internal predecessors, (122), 3 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2022-11-19 08:13:49,531 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 820 transitions. [2022-11-19 08:13:49,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-11-19 08:13:49,533 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:49,534 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:13:49,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-11-19 08:13:49,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2022-11-19 08:13:49,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-11-19 08:13:50,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:50,156 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:13:50,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:50,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1770090193, now seen corresponding path program 1 times [2022-11-19 08:13:50,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:13:50,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1099913018] [2022-11-19 08:13:50,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:13:50,159 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:50,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:13:50,160 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:13:50,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-19 08:13:52,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:13:52,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 2490 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 08:13:52,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:53,518 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 306 proven. 3 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2022-11-19 08:13:53,518 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:54,353 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 12 proven. 21 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2022-11-19 08:13:54,353 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:13:54,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1099913018] [2022-11-19 08:13:54,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1099913018] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:54,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [78245154] [2022-11-19 08:13:54,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:13:54,354 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:13:54,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:13:54,359 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:13:54,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2022-11-19 08:13:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:13:56,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 2490 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:13:56,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:56,800 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 306 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-11-19 08:13:56,800 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:13:56,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [78245154] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:13:56,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:13:56,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9, 9] total 10 [2022-11-19 08:13:56,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193599331] [2022-11-19 08:13:56,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:13:56,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:13:56,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:13:56,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:13:56,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-19 08:13:56,803 INFO L87 Difference]: Start difference. First operand 551 states and 820 transitions. Second operand has 5 states, 4 states have (on average 30.5) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 2 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-19 08:13:59,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:14:00,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:14:00,131 INFO L93 Difference]: Finished difference Result 1020 states and 1525 transitions. [2022-11-19 08:14:00,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:14:00,132 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 30.5) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 2 states have call predecessors, (30), 3 states have call successors, (30) Word has length 298 [2022-11-19 08:14:00,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:14:00,136 INFO L225 Difference]: With dead ends: 1020 [2022-11-19 08:14:00,136 INFO L226 Difference]: Without dead ends: 539 [2022-11-19 08:14:00,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 892 GetRequests, 883 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-19 08:14:00,140 INFO L413 NwaCegarLoop]: 589 mSDtfsCounter, 2 mSDsluCounter, 1681 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:14:00,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2270 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-11-19 08:14:00,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2022-11-19 08:14:00,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2022-11-19 08:14:00,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 336 states have (on average 1.2291666666666667) internal successors, (413), 341 states have internal predecessors, (413), 168 states have call successors, (168), 29 states have call predecessors, (168), 33 states have return successors, (216), 169 states have call predecessors, (216), 166 states have call successors, (216) [2022-11-19 08:14:00,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 797 transitions. [2022-11-19 08:14:00,168 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 797 transitions. Word has length 298 [2022-11-19 08:14:00,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:14:00,169 INFO L495 AbstractCegarLoop]: Abstraction has 539 states and 797 transitions. [2022-11-19 08:14:00,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 30.5) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 2 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-19 08:14:00,169 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 797 transitions. [2022-11-19 08:14:00,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2022-11-19 08:14:00,172 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:14:00,172 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:14:00,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-11-19 08:14:00,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (27)] Forceful destruction successful, exit code 0 [2022-11-19 08:14:00,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:14:00,591 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:14:00,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:14:00,592 INFO L85 PathProgramCache]: Analyzing trace with hash 449559037, now seen corresponding path program 1 times [2022-11-19 08:14:00,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:14:00,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [610032252] [2022-11-19 08:14:00,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:14:00,594 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:14:00,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:14:00,595 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:14:00,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-11-19 08:14:03,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:14:03,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 2516 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:14:03,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:14:04,073 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2022-11-19 08:14:04,074 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:14:04,074 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:14:04,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [610032252] [2022-11-19 08:14:04,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [610032252] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:14:04,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:14:04,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 08:14:04,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998213843] [2022-11-19 08:14:04,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:14:04,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:14:04,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:14:04,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:14:04,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:14:04,076 INFO L87 Difference]: Start difference. First operand 539 states and 797 transitions. Second operand has 8 states, 8 states have (on average 16.125) internal successors, (129), 7 states have internal predecessors, (129), 3 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-19 08:14:06,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:14:06,104 INFO L93 Difference]: Finished difference Result 1042 states and 1545 transitions. [2022-11-19 08:14:06,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 08:14:06,105 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.125) internal successors, (129), 7 states have internal predecessors, (129), 3 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 3 states have call successors, (32) Word has length 309 [2022-11-19 08:14:06,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:14:06,110 INFO L225 Difference]: With dead ends: 1042 [2022-11-19 08:14:06,110 INFO L226 Difference]: Without dead ends: 539 [2022-11-19 08:14:06,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:14:06,113 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 2 mSDsluCounter, 3417 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4002 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:14:06,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4002 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-19 08:14:06,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2022-11-19 08:14:06,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2022-11-19 08:14:06,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 336 states have (on average 1.2291666666666667) internal successors, (413), 341 states have internal predecessors, (413), 168 states have call successors, (168), 29 states have call predecessors, (168), 33 states have return successors, (215), 169 states have call predecessors, (215), 166 states have call successors, (215) [2022-11-19 08:14:06,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 796 transitions. [2022-11-19 08:14:06,142 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 796 transitions. Word has length 309 [2022-11-19 08:14:06,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:14:06,142 INFO L495 AbstractCegarLoop]: Abstraction has 539 states and 796 transitions. [2022-11-19 08:14:06,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.125) internal successors, (129), 7 states have internal predecessors, (129), 3 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-19 08:14:06,143 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 796 transitions. [2022-11-19 08:14:06,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-11-19 08:14:06,145 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:14:06,146 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:14:06,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2022-11-19 08:14:06,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:14:06,367 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:14:06,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:14:06,367 INFO L85 PathProgramCache]: Analyzing trace with hash 2062315077, now seen corresponding path program 1 times [2022-11-19 08:14:06,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:14:06,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1055183570] [2022-11-19 08:14:06,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:14:06,370 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:14:06,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:14:06,370 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:14:06,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-19 08:14:08,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:14:09,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 2540 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-19 08:14:09,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:14:12,720 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_7| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_69| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_69|) (bvadd |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_7| (_ bv80 64)))))) (exists ((|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_7| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_69| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_69|) (bvadd |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_7| (_ bv80 64))))))) is different from true [2022-11-19 08:14:15,111 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_8| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_70| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_70|) (bvadd |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_8| (_ bv80 64)))))) (exists ((|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_8| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_70| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_70|) (bvadd |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_8| (_ bv80 64))))))) is different from true [2022-11-19 08:14:18,056 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_9| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_71| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_71|) (bvadd |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_9| (_ bv80 64)))))) (exists ((|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_9| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_71| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.base_BEFORE_CALL_71|) (bvadd |v_ULTIMATE.start_aws_priority_queue_remove_harness_~#queue~0#1.offset_BEFORE_CALL_9| (_ bv80 64))))))) is different from true [2022-11-19 08:14:24,771 WARN L233 SmtUtils]: Spent 6.10s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:14:31,144 WARN L233 SmtUtils]: Spent 6.10s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:14:37,461 WARN L233 SmtUtils]: Spent 6.10s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:14:43,775 WARN L233 SmtUtils]: Spent 6.10s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:14:44,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-11-19 08:14:44,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-19 08:14:44,798 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 378 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 28 not checked. [2022-11-19 08:14:44,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:14:53,503 WARN L233 SmtUtils]: Spent 6.10s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:15:01,913 WARN L233 SmtUtils]: Spent 6.09s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:15:10,296 WARN L233 SmtUtils]: Spent 6.10s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:15:18,738 WARN L233 SmtUtils]: Spent 6.09s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:15:22,954 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:15:22,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2022-11-19 08:15:23,059 INFO L321 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-11-19 08:15:23,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 19 [2022-11-19 08:15:23,359 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2022-11-19 08:15:23,360 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:15:23,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1055183570] [2022-11-19 08:15:23,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1055183570] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:15:23,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [550517355] [2022-11-19 08:15:23,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:15:23,360 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:15:23,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:15:23,367 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:15:23,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2022-11-19 08:15:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:15:36,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 2540 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-19 08:15:36,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:15:50,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2022-11-19 08:15:50,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-19 08:15:50,510 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2022-11-19 08:15:50,510 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:15:50,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [550517355] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:15:50,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:15:50,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [18, 15] total 32 [2022-11-19 08:15:50,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873460855] [2022-11-19 08:15:50,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:15:50,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-19 08:15:50,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:15:50,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-19 08:15:50,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=726, Unknown=10, NotChecked=168, Total=992 [2022-11-19 08:15:50,513 INFO L87 Difference]: Start difference. First operand 539 states and 796 transitions. Second operand has 17 states, 17 states have (on average 7.705882352941177) internal successors, (131), 15 states have internal predecessors, (131), 7 states have call successors, (34), 3 states have call predecessors, (34), 6 states have return successors, (33), 9 states have call predecessors, (33), 7 states have call successors, (33) [2022-11-19 08:15:56,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:16:01,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:16:01,599 INFO L93 Difference]: Finished difference Result 1066 states and 1625 transitions. [2022-11-19 08:16:01,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-19 08:16:01,601 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 7.705882352941177) internal successors, (131), 15 states have internal predecessors, (131), 7 states have call successors, (34), 3 states have call predecessors, (34), 6 states have return successors, (33), 9 states have call predecessors, (33), 7 states have call successors, (33) Word has length 320 [2022-11-19 08:16:01,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:16:01,605 INFO L225 Difference]: With dead ends: 1066 [2022-11-19 08:16:01,605 INFO L226 Difference]: Without dead ends: 592 [2022-11-19 08:16:01,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 964 GetRequests, 921 SyntacticMatches, 6 SemanticMatches, 37 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 80.6s TimeCoverageRelationStatistics Valid=142, Invalid=1120, Unknown=10, NotChecked=210, Total=1482 [2022-11-19 08:16:01,610 INFO L413 NwaCegarLoop]: 608 mSDtfsCounter, 99 mSDsluCounter, 6171 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 6779 SdHoareTripleChecker+Invalid, 1099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 383 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:16:01,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 6779 Invalid, 1099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 705 Invalid, 1 Unknown, 383 Unchecked, 8.8s Time] [2022-11-19 08:16:01,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2022-11-19 08:16:01,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 570. [2022-11-19 08:16:01,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 356 states have (on average 1.2162921348314606) internal successors, (433), 361 states have internal predecessors, (433), 174 states have call successors, (174), 33 states have call predecessors, (174), 38 states have return successors, (236), 176 states have call predecessors, (236), 172 states have call successors, (236) [2022-11-19 08:16:01,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 843 transitions. [2022-11-19 08:16:01,645 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 843 transitions. Word has length 320 [2022-11-19 08:16:01,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:16:01,645 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 843 transitions. [2022-11-19 08:16:01,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.705882352941177) internal successors, (131), 15 states have internal predecessors, (131), 7 states have call successors, (34), 3 states have call predecessors, (34), 6 states have return successors, (33), 9 states have call predecessors, (33), 7 states have call successors, (33) [2022-11-19 08:16:01,646 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 843 transitions. [2022-11-19 08:16:01,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-11-19 08:16:01,651 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:16:01,652 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:16:01,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (30)] Forceful destruction successful, exit code 0 [2022-11-19 08:16:01,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2022-11-19 08:16:02,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:16:02,052 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:16:02,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:16:02,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1845279991, now seen corresponding path program 1 times [2022-11-19 08:16:02,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:16:02,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1631543339] [2022-11-19 08:16:02,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:16:02,056 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:16:02,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:16:02,056 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:16:02,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-11-19 08:16:04,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:16:04,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 2554 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:16:04,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:16:04,764 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2022-11-19 08:16:04,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:16:04,764 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:16:04,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1631543339] [2022-11-19 08:16:04,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1631543339] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:16:04,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:16:04,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:16:04,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516371285] [2022-11-19 08:16:04,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:16:04,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:16:04,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:16:04,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:16:04,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:16:04,767 INFO L87 Difference]: Start difference. First operand 570 states and 843 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-19 08:16:05,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:16:05,026 INFO L93 Difference]: Finished difference Result 1085 states and 1662 transitions. [2022-11-19 08:16:05,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:16:05,027 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 325 [2022-11-19 08:16:05,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:16:05,029 INFO L225 Difference]: With dead ends: 1085 [2022-11-19 08:16:05,029 INFO L226 Difference]: Without dead ends: 575 [2022-11-19 08:16:05,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:16:05,032 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 7 mSDsluCounter, 1231 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1851 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:16:05,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1851 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:16:05,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2022-11-19 08:16:05,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 571. [2022-11-19 08:16:05,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 357 states have (on average 1.2156862745098038) internal successors, (434), 362 states have internal predecessors, (434), 174 states have call successors, (174), 33 states have call predecessors, (174), 38 states have return successors, (236), 176 states have call predecessors, (236), 172 states have call successors, (236) [2022-11-19 08:16:05,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 844 transitions. [2022-11-19 08:16:05,067 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 844 transitions. Word has length 325 [2022-11-19 08:16:05,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:16:05,067 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 844 transitions. [2022-11-19 08:16:05,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-19 08:16:05,068 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 844 transitions. [2022-11-19 08:16:05,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-11-19 08:16:05,070 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:16:05,071 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:16:05,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-11-19 08:16:05,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:16:05,288 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:16:05,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:16:05,288 INFO L85 PathProgramCache]: Analyzing trace with hash -657393294, now seen corresponding path program 1 times [2022-11-19 08:16:05,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:16:05,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [269136116] [2022-11-19 08:16:05,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:16:05,292 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:16:05,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:16:05,293 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:16:05,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-11-19 08:16:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:16:08,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 2556 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:16:08,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:16:08,600 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 325 proven. 0 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2022-11-19 08:16:08,601 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:16:08,601 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:16:08,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [269136116] [2022-11-19 08:16:08,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [269136116] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:16:08,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:16:08,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:16:08,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481582411] [2022-11-19 08:16:08,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:16:08,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 08:16:08,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:16:08,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 08:16:08,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-19 08:16:08,603 INFO L87 Difference]: Start difference. First operand 571 states and 844 transitions. Second operand has 10 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 3 states have call successors, (35), 2 states have call predecessors, (35), 5 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-19 08:16:11,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:16:11,457 INFO L93 Difference]: Finished difference Result 1093 states and 1663 transitions. [2022-11-19 08:16:11,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-19 08:16:11,459 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 3 states have call successors, (35), 2 states have call predecessors, (35), 5 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) Word has length 325 [2022-11-19 08:16:11,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:16:11,464 INFO L225 Difference]: With dead ends: 1093 [2022-11-19 08:16:11,464 INFO L226 Difference]: Without dead ends: 585 [2022-11-19 08:16:11,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-19 08:16:11,468 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 5 mSDsluCounter, 4686 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5289 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:16:11,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5289 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-19 08:16:11,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2022-11-19 08:16:11,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 578. [2022-11-19 08:16:11,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 362 states have (on average 1.212707182320442) internal successors, (439), 368 states have internal predecessors, (439), 174 states have call successors, (174), 33 states have call predecessors, (174), 40 states have return successors, (255), 177 states have call predecessors, (255), 172 states have call successors, (255) [2022-11-19 08:16:11,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 868 transitions. [2022-11-19 08:16:11,507 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 868 transitions. Word has length 325 [2022-11-19 08:16:11,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:16:11,507 INFO L495 AbstractCegarLoop]: Abstraction has 578 states and 868 transitions. [2022-11-19 08:16:11,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 3 states have call successors, (35), 2 states have call predecessors, (35), 5 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-19 08:16:11,508 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 868 transitions. [2022-11-19 08:16:11,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2022-11-19 08:16:11,510 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:16:11,511 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:16:11,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2022-11-19 08:16:11,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:16:11,727 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:16:11,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:16:11,727 INFO L85 PathProgramCache]: Analyzing trace with hash -2147422091, now seen corresponding path program 1 times [2022-11-19 08:16:11,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:16:11,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2011269460] [2022-11-19 08:16:11,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:16:11,731 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:16:11,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:16:11,732 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:16:11,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af0945b-a312-409f-98d0-e3dc5d18ea9e/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process