./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 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/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_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1ebada516f0ccae5e55b91f6e0fe5802f70171054dc79c047f46877ad506c65e --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 17:52:43,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 17:52:43,489 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 17:52:43,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 17:52:43,548 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 17:52:43,552 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 17:52:43,554 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 17:52:43,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 17:52:43,558 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 17:52:43,559 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 17:52:43,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 17:52:43,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 17:52:43,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 17:52:43,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 17:52:43,565 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 17:52:43,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 17:52:43,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 17:52:43,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 17:52:43,571 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 17:52:43,574 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 17:52:43,576 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 17:52:43,577 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 17:52:43,578 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 17:52:43,579 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 17:52:43,583 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 17:52:43,584 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 17:52:43,584 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 17:52:43,585 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 17:52:43,586 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 17:52:43,587 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 17:52:43,588 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 17:52:43,589 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 17:52:43,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 17:52:43,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 17:52:43,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 17:52:43,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 17:52:43,593 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 17:52:43,594 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 17:52:43,594 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 17:52:43,595 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 17:52:43,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 17:52:43,597 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 17:52:43,626 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 17:52:43,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 17:52:43,627 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 17:52:43,627 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 17:52:43,628 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 17:52:43,628 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 17:52:43,629 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 17:52:43,629 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 17:52:43,629 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 17:52:43,630 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 17:52:43,630 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 17:52:43,630 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 17:52:43,631 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 17:52:43,631 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 17:52:43,631 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 17:52:43,631 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 17:52:43,632 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 17:52:43,632 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 17:52:43,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 17:52:43,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 17:52:43,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 17:52:43,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 17:52:43,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 17:52:43,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 17:52:43,635 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 17:52:43,635 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 17:52:43,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 17:52:43,636 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 17:52:43,636 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 17:52:43,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:52:43,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 17:52:43,637 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 17:52:43,637 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 17:52:43,637 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 17:52:43,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 17:52:43,638 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 17:52:43,638 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 17:52:43,638 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 17:52:43,638 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ebada516f0ccae5e55b91f6e0fe5802f70171054dc79c047f46877ad506c65e [2021-11-25 17:52:43,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 17:52:43,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 17:52:43,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 17:52:43,895 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 17:52:43,897 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 17:52:43,899 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i [2021-11-25 17:52:43,984 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/data/e031fd479/8ca6b4d4ddd64632b9e6270b16289bb6/FLAG33f5c9e11 [2021-11-25 17:52:44,742 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 17:52:44,743 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i [2021-11-25 17:52:44,798 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/data/e031fd479/8ca6b4d4ddd64632b9e6270b16289bb6/FLAG33f5c9e11 [2021-11-25 17:52:44,954 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/data/e031fd479/8ca6b4d4ddd64632b9e6270b16289bb6 [2021-11-25 17:52:44,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 17:52:44,958 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 17:52:44,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 17:52:44,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 17:52:44,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 17:52:44,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:52:44" (1/1) ... [2021-11-25 17:52:44,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@426d0f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:44, skipping insertion in model container [2021-11-25 17:52:44,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:52:44" (1/1) ... [2021-11-25 17:52:44,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 17:52:45,079 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 17:52:45,340 WARN L230 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_5c06011b-0546-43fe-ac1b-df369d70f2fb/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4499,4512] [2021-11-25 17:52:45,346 WARN L230 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_5c06011b-0546-43fe-ac1b-df369d70f2fb/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4559,4572] [2021-11-25 17:52:46,220 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,221 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,221 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,222 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,223 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,243 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,244 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,246 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,247 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,249 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,250 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,251 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,251 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,592 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-25 17:52:46,593 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-25 17:52:46,594 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-25 17:52:46,595 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-25 17:52:46,597 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-25 17:52:46,598 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-25 17:52:46,598 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-25 17:52:46,599 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-25 17:52:46,600 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-25 17:52:46,600 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-25 17:52:46,766 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-25 17:52:46,792 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,800 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,949 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,950 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,950 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,951 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,963 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,964 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,964 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,965 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,965 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,965 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,966 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,966 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,966 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,969 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,970 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,970 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,970 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,978 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,978 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,985 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,986 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,987 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,997 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,997 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:46,998 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,002 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:52:47,028 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 17:52:47,042 WARN L230 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_5c06011b-0546-43fe-ac1b-df369d70f2fb/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4499,4512] [2021-11-25 17:52:47,042 WARN L230 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_5c06011b-0546-43fe-ac1b-df369d70f2fb/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4559,4572] [2021-11-25 17:52:47,076 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,076 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,077 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,077 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,078 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,084 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,085 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,085 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,086 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,087 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,087 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,088 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,088 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,120 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-25 17:52:47,121 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-25 17:52:47,122 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-25 17:52:47,123 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-25 17:52:47,123 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-25 17:52:47,124 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-25 17:52:47,124 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-25 17:52:47,125 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-25 17:52:47,126 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-25 17:52:47,126 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-25 17:52:47,146 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-25 17:52:47,160 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,164 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,187 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,188 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,188 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,188 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,188 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,189 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,189 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,190 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,190 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,190 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,191 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,191 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,191 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,192 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,192 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,193 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,193 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,195 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,196 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,202 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,203 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,203 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,208 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,209 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,209 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 17:52:47,212 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:52:47,416 INFO L208 MainTranslator]: Completed translation [2021-11-25 17:52:47,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:47 WrapperNode [2021-11-25 17:52:47,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 17:52:47,418 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 17:52:47,419 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 17:52:47,419 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 17:52:47,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:47" (1/1) ... [2021-11-25 17:52:47,553 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:47" (1/1) ... [2021-11-25 17:52:47,659 INFO L137 Inliner]: procedures = 697, calls = 1921, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 1060 [2021-11-25 17:52:47,660 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 17:52:47,661 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 17:52:47,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 17:52:47,662 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 17:52:47,670 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:47" (1/1) ... [2021-11-25 17:52:47,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:47" (1/1) ... [2021-11-25 17:52:47,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:47" (1/1) ... [2021-11-25 17:52:47,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:47" (1/1) ... [2021-11-25 17:52:47,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:47" (1/1) ... [2021-11-25 17:52:47,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:47" (1/1) ... [2021-11-25 17:52:47,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:47" (1/1) ... [2021-11-25 17:52:47,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 17:52:47,857 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 17:52:47,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 17:52:47,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 17:52:47,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:47" (1/1) ... [2021-11-25 17:52:47,866 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:52:47,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:52:47,896 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 17:52:47,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 17:52:47,945 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2021-11-25 17:52:47,945 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2021-11-25 17:52:47,945 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2021-11-25 17:52:47,946 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2021-11-25 17:52:47,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 17:52:47,946 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2021-11-25 17:52:47,947 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2021-11-25 17:52:47,947 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-11-25 17:52:47,950 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-11-25 17:52:47,950 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-25 17:52:47,950 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-25 17:52:47,951 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2021-11-25 17:52:47,951 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2021-11-25 17:52:47,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 17:52:47,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 17:52:47,952 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-25 17:52:47,952 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-25 17:52:47,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 17:52:47,958 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 17:52:47,958 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_node [2021-11-25 17:52:47,958 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_node [2021-11-25 17:52:47,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 17:52:47,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 17:52:47,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 17:52:47,959 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2021-11-25 17:52:47,959 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2021-11-25 17:52:47,959 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2021-11-25 17:52:47,959 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2021-11-25 17:52:47,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 17:52:47,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 17:52:47,960 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-25 17:52:47,960 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-25 17:52:47,960 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-25 17:52:47,960 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-25 17:52:47,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 17:52:47,960 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-11-25 17:52:47,961 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-11-25 17:52:47,961 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2021-11-25 17:52:47,961 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2021-11-25 17:52:47,961 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2021-11-25 17:52:47,961 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2021-11-25 17:52:47,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 17:52:47,962 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 17:52:47,962 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-25 17:52:47,962 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-25 17:52:47,962 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2021-11-25 17:52:47,962 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2021-11-25 17:52:47,962 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2021-11-25 17:52:47,962 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2021-11-25 17:52:47,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 17:52:47,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 17:52:47,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 17:52:47,963 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2021-11-25 17:52:47,964 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2021-11-25 17:52:47,964 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-25 17:52:47,964 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-25 17:52:47,964 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-25 17:52:47,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-25 17:52:47,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 17:52:47,965 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2021-11-25 17:52:47,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2021-11-25 17:52:47,965 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2021-11-25 17:52:47,965 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2021-11-25 17:52:47,965 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-25 17:52:47,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-25 17:52:47,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 17:52:47,966 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2021-11-25 17:52:47,966 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2021-11-25 17:52:48,356 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 17:52:48,358 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 17:52:50,977 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 17:52:51,255 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 17:52:51,255 INFO L301 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-25 17:52:51,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:52:51 BoogieIcfgContainer [2021-11-25 17:52:51,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 17:52:51,263 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 17:52:51,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 17:52:51,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 17:52:51,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:52:44" (1/3) ... [2021-11-25 17:52:51,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f24b89e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:52:51, skipping insertion in model container [2021-11-25 17:52:51,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:47" (2/3) ... [2021-11-25 17:52:51,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f24b89e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:52:51, skipping insertion in model container [2021-11-25 17:52:51,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:52:51" (3/3) ... [2021-11-25 17:52:51,271 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_remove_harness.i [2021-11-25 17:52:51,280 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 17:52:51,280 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-25 17:52:51,344 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 17:52:51,366 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 17:52:51,367 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 17:52:51,403 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) [2021-11-25 17:52:51,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-25 17:52:51,422 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:52:51,425 INFO L514 BasicCegarLoop]: 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] [2021-11-25 17:52:51,426 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:52:51,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:52:51,431 INFO L85 PathProgramCache]: Analyzing trace with hash -953197930, now seen corresponding path program 1 times [2021-11-25 17:52:51,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:52:51,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044233363] [2021-11-25 17:52:51,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:52:51,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:52:51,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:52:52,259 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2021-11-25 17:52:52,260 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:52:52,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044233363] [2021-11-25 17:52:52,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044233363] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 17:52:52,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114117054] [2021-11-25 17:52:52,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:52:52,261 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:52:52,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:52:52,268 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:52:52,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 17:52:52,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:52:52,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 2398 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-25 17:52:52,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:52:53,210 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2021-11-25 17:52:53,210 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:52:53,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114117054] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:52:53,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 17:52:53,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2021-11-25 17:52:53,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018396073] [2021-11-25 17:52:53,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:52:53,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 17:52:53,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:52:53,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 17:52:53,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:52:53,254 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) [2021-11-25 17:52:54,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:52:54,318 INFO L93 Difference]: Finished difference Result 710 states and 1085 transitions. [2021-11-25 17:52:54,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 17:52:54,329 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 [2021-11-25 17:52:54,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:52:54,345 INFO L225 Difference]: With dead ends: 710 [2021-11-25 17:52:54,345 INFO L226 Difference]: Without dead ends: 386 [2021-11-25 17:52:54,354 INFO L932 BasicCegarLoop]: 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 [2021-11-25 17:52:54,358 INFO L933 BasicCegarLoop]: 511 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-25 17:52:54,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 511 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-25 17:52:54,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2021-11-25 17:52:54,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2021-11-25 17:52:54,443 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) [2021-11-25 17:52:54,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 554 transitions. [2021-11-25 17:52:54,455 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 554 transitions. Word has length 106 [2021-11-25 17:52:54,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:52:54,459 INFO L470 AbstractCegarLoop]: Abstraction has 386 states and 554 transitions. [2021-11-25 17:52:54,459 INFO L471 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) [2021-11-25 17:52:54,461 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 554 transitions. [2021-11-25 17:52:54,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-25 17:52:54,470 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:52:54,470 INFO L514 BasicCegarLoop]: 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] [2021-11-25 17:52:54,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 17:52:54,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:52:54,695 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:52:54,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:52:54,696 INFO L85 PathProgramCache]: Analyzing trace with hash -777866516, now seen corresponding path program 1 times [2021-11-25 17:52:54,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:52:54,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142271781] [2021-11-25 17:52:54,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:52:54,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:52:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:52:55,022 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-11-25 17:52:55,022 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:52:55,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142271781] [2021-11-25 17:52:55,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142271781] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 17:52:55,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261961040] [2021-11-25 17:52:55,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:52:55,023 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:52:55,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:52:55,027 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:52:55,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 17:52:55,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:52:55,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 17:52:55,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:52:55,972 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2021-11-25 17:52:55,972 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:52:55,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261961040] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:52:55,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 17:52:55,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2021-11-25 17:52:55,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741913386] [2021-11-25 17:52:55,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:52:55,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 17:52:55,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:52:55,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 17:52:55,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-25 17:52:55,976 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) [2021-11-25 17:52:57,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:52:57,801 INFO L93 Difference]: Finished difference Result 744 states and 1084 transitions. [2021-11-25 17:52:57,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 17:52:57,801 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 [2021-11-25 17:52:57,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:52:57,809 INFO L225 Difference]: With dead ends: 744 [2021-11-25 17:52:57,809 INFO L226 Difference]: Without dead ends: 388 [2021-11-25 17:52:57,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-25 17:52:57,820 INFO L933 BasicCegarLoop]: 482 mSDtfsCounter, 49 mSDsluCounter, 1476 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 1834 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-25 17:52:57,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 1834 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-25 17:52:57,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2021-11-25 17:52:57,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 388. [2021-11-25 17:52:57,895 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) [2021-11-25 17:52:57,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 568 transitions. [2021-11-25 17:52:57,901 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 568 transitions. Word has length 118 [2021-11-25 17:52:57,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:52:57,902 INFO L470 AbstractCegarLoop]: Abstraction has 388 states and 568 transitions. [2021-11-25 17:52:57,902 INFO L471 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) [2021-11-25 17:52:57,903 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 568 transitions. [2021-11-25 17:52:57,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-25 17:52:57,904 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:52:57,905 INFO L514 BasicCegarLoop]: 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] [2021-11-25 17:52:57,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 17:52:58,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:52:58,130 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:52:58,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:52:58,130 INFO L85 PathProgramCache]: Analyzing trace with hash -677546172, now seen corresponding path program 1 times [2021-11-25 17:52:58,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:52:58,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607666803] [2021-11-25 17:52:58,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:52:58,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:52:58,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:52:58,362 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-25 17:52:58,362 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:52:58,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607666803] [2021-11-25 17:52:58,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607666803] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 17:52:58,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755238533] [2021-11-25 17:52:58,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:52:58,363 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:52:58,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:52:58,364 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:52:58,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 17:52:58,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:52:58,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 2522 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 17:52:58,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:52:59,279 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2021-11-25 17:52:59,279 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:52:59,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755238533] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:52:59,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 17:52:59,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2021-11-25 17:52:59,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164567029] [2021-11-25 17:52:59,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:52:59,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 17:52:59,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:52:59,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 17:52:59,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-25 17:52:59,282 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) [2021-11-25 17:53:00,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:02,659 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:03,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:03,359 INFO L93 Difference]: Finished difference Result 759 states and 1143 transitions. [2021-11-25 17:53:03,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 17:53:03,359 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 [2021-11-25 17:53:03,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:03,365 INFO L225 Difference]: With dead ends: 759 [2021-11-25 17:53:03,365 INFO L226 Difference]: Without dead ends: 401 [2021-11-25 17:53:03,368 INFO L932 BasicCegarLoop]: 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 [2021-11-25 17:53:03,370 INFO L933 BasicCegarLoop]: 470 mSDtfsCounter, 63 mSDsluCounter, 2421 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 2683 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:03,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 2683 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-11-25 17:53:03,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2021-11-25 17:53:03,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 399. [2021-11-25 17:53:03,405 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) [2021-11-25 17:53:03,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 599 transitions. [2021-11-25 17:53:03,412 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 599 transitions. Word has length 126 [2021-11-25 17:53:03,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:03,413 INFO L470 AbstractCegarLoop]: Abstraction has 399 states and 599 transitions. [2021-11-25 17:53:03,414 INFO L471 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) [2021-11-25 17:53:03,414 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 599 transitions. [2021-11-25 17:53:03,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-25 17:53:03,416 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:03,416 INFO L514 BasicCegarLoop]: 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] [2021-11-25 17:53:03,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 17:53:03,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:53:03,643 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:53:03,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:03,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1948552153, now seen corresponding path program 1 times [2021-11-25 17:53:03,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:03,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293990869] [2021-11-25 17:53:03,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:03,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:03,759 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 17:53:03,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1595189291] [2021-11-25 17:53:03,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:03,760 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:53:03,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:53:03,761 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:53:03,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 17:53:04,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:04,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 2654 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 17:53:04,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:53:04,672 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2021-11-25 17:53:04,672 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:53:04,672 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:04,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293990869] [2021-11-25 17:53:04,673 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 17:53:04,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595189291] [2021-11-25 17:53:04,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595189291] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:04,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:04,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 17:53:04,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034544091] [2021-11-25 17:53:04,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:04,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 17:53:04,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:04,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 17:53:04,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 17:53:04,675 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) [2021-11-25 17:53:07,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:07,695 INFO L93 Difference]: Finished difference Result 776 states and 1204 transitions. [2021-11-25 17:53:07,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 17:53:07,696 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 [2021-11-25 17:53:07,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:07,701 INFO L225 Difference]: With dead ends: 776 [2021-11-25 17:53:07,701 INFO L226 Difference]: Without dead ends: 407 [2021-11-25 17:53:07,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-25 17:53:07,706 INFO L933 BasicCegarLoop]: 481 mSDtfsCounter, 60 mSDsluCounter, 1969 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 2286 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:07,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 2286 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-25 17:53:07,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2021-11-25 17:53:07,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 399. [2021-11-25 17:53:07,755 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) [2021-11-25 17:53:07,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 599 transitions. [2021-11-25 17:53:07,760 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 599 transitions. Word has length 135 [2021-11-25 17:53:07,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:07,761 INFO L470 AbstractCegarLoop]: Abstraction has 399 states and 599 transitions. [2021-11-25 17:53:07,761 INFO L471 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) [2021-11-25 17:53:07,762 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 599 transitions. [2021-11-25 17:53:07,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-25 17:53:07,764 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:07,764 INFO L514 BasicCegarLoop]: 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] [2021-11-25 17:53:07,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 17:53:07,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:53:07,991 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:53:07,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:07,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1814418024, now seen corresponding path program 1 times [2021-11-25 17:53:07,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:07,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513145762] [2021-11-25 17:53:07,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:07,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:08,077 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 17:53:08,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1992515503] [2021-11-25 17:53:08,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:08,078 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:53:08,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:53:08,079 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:53:08,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 17:53:08,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:08,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 2708 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-25 17:53:08,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:53:09,010 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-11-25 17:53:09,011 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:53:09,011 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:09,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513145762] [2021-11-25 17:53:09,011 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 17:53:09,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992515503] [2021-11-25 17:53:09,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992515503] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:09,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:09,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-25 17:53:09,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222475142] [2021-11-25 17:53:09,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:09,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 17:53:09,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:09,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 17:53:09,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-25 17:53:09,014 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) [2021-11-25 17:53:11,946 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:13,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:13,772 INFO L93 Difference]: Finished difference Result 778 states and 1196 transitions. [2021-11-25 17:53:13,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 17:53:13,773 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 [2021-11-25 17:53:13,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:13,778 INFO L225 Difference]: With dead ends: 778 [2021-11-25 17:53:13,778 INFO L226 Difference]: Without dead ends: 409 [2021-11-25 17:53:13,780 INFO L932 BasicCegarLoop]: 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 [2021-11-25 17:53:13,781 INFO L933 BasicCegarLoop]: 464 mSDtfsCounter, 83 mSDsluCounter, 2873 mSDsCounter, 0 mSdLazyCounter, 781 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 3095 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:13,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 3095 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 781 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2021-11-25 17:53:13,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2021-11-25 17:53:13,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 399. [2021-11-25 17:53:13,810 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) [2021-11-25 17:53:13,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 599 transitions. [2021-11-25 17:53:13,816 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 599 transitions. Word has length 143 [2021-11-25 17:53:13,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:13,816 INFO L470 AbstractCegarLoop]: Abstraction has 399 states and 599 transitions. [2021-11-25 17:53:13,817 INFO L471 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) [2021-11-25 17:53:13,817 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 599 transitions. [2021-11-25 17:53:13,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-11-25 17:53:13,819 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:13,820 INFO L514 BasicCegarLoop]: 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] [2021-11-25 17:53:13,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-25 17:53:14,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:53:14,035 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:53:14,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:14,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1406351011, now seen corresponding path program 2 times [2021-11-25 17:53:14,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:14,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975829812] [2021-11-25 17:53:14,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:14,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:14,128 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 17:53:14,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1611559580] [2021-11-25 17:53:14,128 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 17:53:14,129 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:53:14,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:53:14,130 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:53:14,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-25 17:53:14,677 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-25 17:53:14,678 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 17:53:14,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 1885 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-25 17:53:14,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:53:14,941 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2021-11-25 17:53:14,941 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:53:14,941 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:14,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975829812] [2021-11-25 17:53:14,942 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 17:53:14,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611559580] [2021-11-25 17:53:14,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611559580] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:14,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:14,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 17:53:14,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405708550] [2021-11-25 17:53:14,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:14,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 17:53:14,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:14,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 17:53:14,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:53:14,944 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) [2021-11-25 17:53:16,358 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:53:18,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:18,139 INFO L93 Difference]: Finished difference Result 730 states and 1127 transitions. [2021-11-25 17:53:18,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 17:53:18,140 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 [2021-11-25 17:53:18,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:18,144 INFO L225 Difference]: With dead ends: 730 [2021-11-25 17:53:18,144 INFO L226 Difference]: Without dead ends: 399 [2021-11-25 17:53:18,148 INFO L932 BasicCegarLoop]: 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 [2021-11-25 17:53:18,149 INFO L933 BasicCegarLoop]: 472 mSDtfsCounter, 0 mSDsluCounter, 1506 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1848 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:18,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1848 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-11-25 17:53:18,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2021-11-25 17:53:18,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 399. [2021-11-25 17:53:18,201 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) [2021-11-25 17:53:18,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 598 transitions. [2021-11-25 17:53:18,206 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 598 transitions. Word has length 152 [2021-11-25 17:53:18,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:18,209 INFO L470 AbstractCegarLoop]: Abstraction has 399 states and 598 transitions. [2021-11-25 17:53:18,209 INFO L471 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) [2021-11-25 17:53:18,209 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 598 transitions. [2021-11-25 17:53:18,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-25 17:53:18,211 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:18,212 INFO L514 BasicCegarLoop]: 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] [2021-11-25 17:53:18,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-25 17:53:18,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-25 17:53:18,426 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:53:18,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:18,426 INFO L85 PathProgramCache]: Analyzing trace with hash 2097149718, now seen corresponding path program 3 times [2021-11-25 17:53:18,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:18,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177409019] [2021-11-25 17:53:18,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:18,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:18,528 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 17:53:18,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1866056716] [2021-11-25 17:53:18,529 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-25 17:53:18,529 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:53:18,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:53:18,530 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:53:18,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c06011b-0546-43fe-ac1b-df369d70f2fb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-25 17:53:18,942 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-25 17:53:18,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 17:53:18,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-25 17:53:18,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:53:19,411 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 94 proven. 2 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2021-11-25 17:53:19,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 17:53:20,045 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2021-11-25 17:53:20,045 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:20,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177409019] [2021-11-25 17:53:20,046 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 17:53:20,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866056716] [2021-11-25 17:53:20,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866056716] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 17:53:20,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [988325921] [2021-11-25 17:53:20,069 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2021-11-25 17:53:20,069 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 17:53:20,074 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 17:53:20,079 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 17:53:20,079 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 17:53:23,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:23,478 INFO L244 Elim1Store]: Index analysis took 377 ms [2021-11-25 17:53:40,324 WARN L227 SmtUtils]: Spent 16.76s on a formula simplification. DAG size of input: 1767 DAG size of output: 1175 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 17:53:40,330 INFO L354 Elim1Store]: treesize reduction 1968, result has 47.2 percent of original size [2021-11-25 17:53:40,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 197 select indices, 197 select index equivalence classes, 19308 disjoint index pairs (out of 19306 index pairs), introduced 197 new quantified variables, introduced 196 case distinctions, treesize of input 992 treesize of output 2358 [2021-11-25 17:53:43,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:43,844 INFO L244 Elim1Store]: Index analysis took 626 ms [2021-11-25 17:54:16,776 WARN L227 SmtUtils]: Spent 32.86s on a formula simplification. DAG size of input: 2161 DAG size of output: 1179 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 17:54:16,780 INFO L354 Elim1Store]: treesize reduction 3528, result has 33.3 percent of original size [2021-11-25 17:54:16,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 199 select indices, 199 select index equivalence classes, 19505 disjoint index pairs (out of 19701 index pairs), introduced 199 new quantified variables, introduced 392 case distinctions, treesize of input 1002 treesize of output 2377 [2021-11-25 17:54:18,662 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 194 [2021-11-25 17:54:18,789 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 194 [2021-11-25 17:54:19,008 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 194 [2021-11-25 17:54:19,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:19,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 17:54:19,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:19,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 17:54:19,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 17:54:19,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:19,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:19,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:19,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 17:54:20,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:20,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:20,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:20,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:20,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:20,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:20,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 251 treesize of output 203 [2021-11-25 17:54:20,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:20,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:20,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:20,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:20,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:20,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:20,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 251 treesize of output 203 [2021-11-25 17:54:21,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:21,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 17:54:21,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:21,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 17:54:21,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:21,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 17:54:21,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:21,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 17:54:21,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:21,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 17:54:21,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:21,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 17:54:22,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:22,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 17:54:22,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:22,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 17:54:22,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:22,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 17:54:22,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:22,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 17:54:22,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:22,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 17:54:22,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:22,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 17:54:22,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 17:54:23,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:23,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:23,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:23,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 645 treesize of output 635 [2021-11-25 17:54:23,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:23,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:23,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:23,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 650 treesize of output 629 [2021-11-25 17:54:23,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:23,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:23,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:23,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 640 treesize of output 630 [2021-11-25 17:54:23,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 17:54:23,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 17:54:23,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 17:54:23,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 17:54:24,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 17:54:24,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 17:54:24,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 17:54:24,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 17:54:24,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:24,128 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 17:54:24,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 17:54:24,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 17:54:24,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 17:54:24,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:24,221 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 17:54:24,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 17:54:24,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 17:54:24,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 17:54:24,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 17:54:24,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2021-11-25 17:54:24,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-11-25 17:54:24,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2021-11-25 17:54:24,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-11-25 17:54:24,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:24,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:24,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:24,930 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 641 treesize of output 613 [2021-11-25 17:54:24,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:24,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 613 treesize of output 589 [2021-11-25 17:54:24,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:24,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:24,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:24,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 596 treesize of output 568 [2021-11-25 17:54:25,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:25,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:25,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:25,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 641 treesize of output 613 [2021-11-25 17:54:26,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:26,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 613 treesize of output 589 [2021-11-25 17:54:26,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:26,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:26,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:26,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 596 treesize of output 568 [2021-11-25 17:54:29,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 17:54:29,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:29,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 46 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 80 [2021-11-25 17:54:29,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 19 treesize of output 1 [2021-11-25 17:54:29,820 INFO L244 Elim1Store]: Index analysis took 103 ms [2021-11-25 17:54:35,111 WARN L227 SmtUtils]: Spent 5.29s on a formula simplification. DAG size of input: 40 DAG size of output: 13 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 17:54:35,111 INFO L354 Elim1Store]: treesize reduction 74, result has 20.4 percent of original size [2021-11-25 17:54:35,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 245 treesize of output 255 [2021-11-25 17:54:41,945 WARN L227 SmtUtils]: Spent 6.38s on a formula simplification. DAG size of input: 40 DAG size of output: 13 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 17:54:41,946 INFO L354 Elim1Store]: treesize reduction 74, result has 20.4 percent of original size [2021-11-25 17:54:41,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 243 treesize of output 253 [2021-11-25 17:54:43,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2021-11-25 17:54:43,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 31 treesize of output 29 [2021-11-25 17:54:43,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 31 treesize of output 29 [2021-11-25 17:54:43,264 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:54:43,280 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:54:43,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2021-11-25 17:54:43,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2021-11-25 17:54:43,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 31 treesize of output 29 [2021-11-25 17:54:43,596 INFO L354 Elim1Store]: treesize reduction 127, result has 17.5 percent of original size [2021-11-25 17:54:43,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 213 treesize of output 229 [2021-11-25 17:54:43,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:43,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:43,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:43,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 81 treesize of output 65 [2021-11-25 17:54:43,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 204 treesize of output 184 [2021-11-25 17:54:43,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 67 treesize of output 65 [2021-11-25 17:54:45,464 INFO L354 Elim1Store]: treesize reduction 127, result has 17.5 percent of original size [2021-11-25 17:54:45,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 279 treesize of output 289 [2021-11-25 17:54:45,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 165 treesize of output 151 [2021-11-25 17:54:45,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 87 [2021-11-25 17:54:45,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 79 treesize of output 77 [2021-11-25 17:54:45,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 79 treesize of output 77 [2021-11-25 17:54:45,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 17:54:46,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 17:54:46,540 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-25 17:54:46,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 237 treesize of output 233 [2021-11-25 17:54:46,672 INFO L354 Elim1Store]: treesize reduction 109, result has 19.9 percent of original size [2021-11-25 17:54:46,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 138 treesize of output 158 [2021-11-25 17:54:46,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 53