./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c5ce5ecaf845e6855240a1053cf9bb98448187512cca05d9c176538088e49244 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:02:52,197 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:02:52,263 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-29 06:02:52,268 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:02:52,269 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:02:52,293 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:02:52,294 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:02:52,294 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:02:52,295 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:02:52,295 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:02:52,296 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:02:52,297 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:02:52,297 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:02:52,298 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:02:52,299 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:02:52,299 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:02:52,300 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:02:52,300 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:02:52,301 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:02:52,301 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:02:52,302 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:02:52,302 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:02:52,303 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:02:52,303 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:02:52,304 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:02:52,304 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:02:52,305 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:02:52,305 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:02:52,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:02:52,306 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:02:52,306 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:02:52,307 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:02:52,307 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:02:52,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:02:52,308 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:02:52,308 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:02:52,308 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:02:52,308 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:02:52,309 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:02:52,309 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5ce5ecaf845e6855240a1053cf9bb98448187512cca05d9c176538088e49244 [2023-11-29 06:02:52,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:02:52,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:02:52,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:02:52,553 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:02:52,553 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:02:52,554 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness_negated.i [2023-11-29 06:02:55,314 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:02:55,700 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:02:55,700 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness_negated.i [2023-11-29 06:02:55,730 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/data/2431dd546/2374792446214f128331996a90939fed/FLAGdb39b51ef [2023-11-29 06:02:55,743 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/data/2431dd546/2374792446214f128331996a90939fed [2023-11-29 06:02:55,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:02:55,746 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:02:55,748 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:02:55,748 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:02:55,754 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:02:55,754 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:02:55" (1/1) ... [2023-11-29 06:02:55,755 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ce7b4a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:02:55, skipping insertion in model container [2023-11-29 06:02:55,756 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:02:55" (1/1) ... [2023-11-29 06:02:55,850 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:02:56,106 WARN L240 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_bad99a75-e54a-4733-809d-960f9dedd239/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness_negated.i[4496,4509] [2023-11-29 06:02:56,114 WARN L240 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_bad99a75-e54a-4733-809d-960f9dedd239/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness_negated.i[4556,4569] [2023-11-29 06:02:56,916 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:56,917 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:56,918 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:56,919 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:56,920 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:56,936 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:56,937 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:56,940 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:56,940 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:56,943 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:56,944 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:56,945 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:56,946 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,270 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-29 06:02:57,271 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-29 06:02:57,272 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-29 06:02:57,273 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-29 06:02:57,275 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-29 06:02:57,276 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-29 06:02:57,276 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-29 06:02:57,277 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-29 06:02:57,278 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-29 06:02:57,278 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-29 06:02:57,435 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,442 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,502 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,503 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,503 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,504 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,504 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,504 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,505 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,506 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,506 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,506 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,507 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,507 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,507 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,510 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,511 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,511 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,511 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,515 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,515 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,523 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,524 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,524 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,540 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:02:57,573 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:02:57,584 WARN L240 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_bad99a75-e54a-4733-809d-960f9dedd239/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness_negated.i[4496,4509] [2023-11-29 06:02:57,584 WARN L240 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_bad99a75-e54a-4733-809d-960f9dedd239/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness_negated.i[4556,4569] [2023-11-29 06:02:57,635 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,635 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,636 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,636 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,637 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,643 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,643 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,644 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,645 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,646 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,646 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,647 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,647 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,680 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-29 06:02:57,681 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-29 06:02:57,681 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-29 06:02:57,682 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-29 06:02:57,683 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-29 06:02:57,683 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-29 06:02:57,684 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-29 06:02:57,684 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-29 06:02:57,684 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-29 06:02:57,685 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-29 06:02:57,717 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,722 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,728 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7739-7750] [2023-11-29 06:02:57,746 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,747 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,747 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,747 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,747 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,748 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,748 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,748 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,749 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,749 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,749 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,749 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,750 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,750 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,751 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,751 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,751 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,753 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,754 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,758 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,759 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,759 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 06:02:57,767 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:02:57,986 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:02:57,986 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:02:57,987 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:02:57,987 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:02:57,987 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:02:57,987 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:02:57,987 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:02:57,987 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:02:57,987 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:02:57,987 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:02:57,988 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:02:57,988 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:02:57,988 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:02:57,988 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:02:57,988 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:02:57,996 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:02:57,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:02:57 WrapperNode [2023-11-29 06:02:57,996 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:02:57,997 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:02:57,997 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:02:57,997 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:02:58,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:02:57" (1/1) ... [2023-11-29 06:02:58,068 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:02:57" (1/1) ... [2023-11-29 06:02:58,142 INFO L138 Inliner]: procedures = 696, calls = 1936, calls flagged for inlining = 59, calls inlined = 15, statements flattened = 1059 [2023-11-29 06:02:58,143 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:02:58,143 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:02:58,144 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:02:58,144 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:02:58,155 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:02:57" (1/1) ... [2023-11-29 06:02:58,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:02:57" (1/1) ... [2023-11-29 06:02:58,163 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:02:57" (1/1) ... [2023-11-29 06:02:58,299 INFO L175 MemorySlicer]: Split 393 memory accesses to 7 slices as follows [17, 2, 3, 259, 15, 94, 3]. 66 percent of accesses are in the largest equivalence class. The 263 initializations are split as follows [4, 2, 1, 242, 0, 11, 3]. The 30 writes are split as follows [3, 0, 1, 8, 13, 5, 0]. [2023-11-29 06:02:58,300 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:02:57" (1/1) ... [2023-11-29 06:02:58,300 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:02:57" (1/1) ... [2023-11-29 06:02:58,342 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:02:57" (1/1) ... [2023-11-29 06:02:58,350 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:02:57" (1/1) ... [2023-11-29 06:02:58,365 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:02:57" (1/1) ... [2023-11-29 06:02:58,373 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:02:57" (1/1) ... [2023-11-29 06:02:58,386 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:02:58,387 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:02:58,387 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:02:58,387 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:02:58,388 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:02:57" (1/1) ... [2023-11-29 06:02:58,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:02:58,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:02:58,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:02:58,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:02:58,451 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2023-11-29 06:02:58,452 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2023-11-29 06:02:58,452 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2023-11-29 06:02:58,452 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2023-11-29 06:02:58,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 06:02:58,452 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-29 06:02:58,452 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-29 06:02:58,452 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-29 06:02:58,452 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-29 06:02:58,453 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-29 06:02:58,453 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-29 06:02:58,453 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2023-11-29 06:02:58,453 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2023-11-29 06:02:58,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-29 06:02:58,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-29 06:02:58,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-29 06:02:58,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-29 06:02:58,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-29 06:02:58,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-29 06:02:58,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-29 06:02:58,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 06:02:58,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 06:02:58,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 06:02:58,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 06:02:58,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 06:02:58,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-29 06:02:58,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-29 06:02:58,455 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-29 06:02:58,455 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-29 06:02:58,455 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 06:02:58,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 06:02:58,456 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_node [2023-11-29 06:02:58,456 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_node [2023-11-29 06:02:58,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 06:02:58,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:02:58,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 06:02:58,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 06:02:58,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 06:02:58,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 06:02:58,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-29 06:02:58,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-29 06:02:58,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-29 06:02:58,457 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2023-11-29 06:02:58,457 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2023-11-29 06:02:58,457 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-29 06:02:58,457 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-29 06:02:58,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:02:58,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:02:58,458 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-29 06:02:58,458 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-29 06:02:58,458 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2023-11-29 06:02:58,458 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2023-11-29 06:02:58,458 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-29 06:02:58,458 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-29 06:02:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-29 06:02:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-29 06:02:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-29 06:02:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-29 06:02:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-29 06:02:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-29 06:02:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-29 06:02:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-11-29 06:02:58,460 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-11-29 06:02:58,460 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2023-11-29 06:02:58,460 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2023-11-29 06:02:58,460 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-29 06:02:58,460 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-29 06:02:58,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 06:02:58,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 06:02:58,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 06:02:58,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-29 06:02:58,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2023-11-29 06:02:58,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2023-11-29 06:02:58,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2023-11-29 06:02:58,461 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 06:02:58,461 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 06:02:58,461 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 06:02:58,461 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-29 06:02:58,462 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2023-11-29 06:02:58,462 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2023-11-29 06:02:58,462 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2023-11-29 06:02:58,462 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 06:02:58,462 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 06:02:58,462 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-29 06:02:58,462 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-29 06:02:58,463 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2023-11-29 06:02:58,463 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2023-11-29 06:02:58,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 06:02:58,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 06:02:58,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 06:02:58,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 06:02:58,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 06:02:58,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-29 06:02:58,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-29 06:02:58,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-29 06:02:58,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-29 06:02:58,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-29 06:02:58,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-29 06:02:58,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-29 06:02:58,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-29 06:02:58,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-29 06:02:58,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-29 06:02:58,465 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2023-11-29 06:02:58,465 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2023-11-29 06:02:58,465 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-29 06:02:58,465 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-29 06:02:58,465 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-29 06:02:58,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-29 06:02:58,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 06:02:58,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 06:02:58,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 06:02:58,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 06:02:58,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 06:02:58,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-29 06:02:58,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-29 06:02:58,466 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-29 06:02:58,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-29 06:02:58,467 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2023-11-29 06:02:58,467 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2023-11-29 06:02:58,467 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-29 06:02:58,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-29 06:02:58,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:02:58,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 06:02:58,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 06:02:58,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 06:02:58,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 06:02:58,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-29 06:02:58,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-29 06:02:58,468 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2023-11-29 06:02:58,468 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2023-11-29 06:02:58,803 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:02:58,806 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:03:00,287 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:03:00,403 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:03:00,403 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-29 06:03:00,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:03:00 BoogieIcfgContainer [2023-11-29 06:03:00,404 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:03:00,407 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:03:00,407 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:03:00,410 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:03:00,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:02:55" (1/3) ... [2023-11-29 06:03:00,410 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@629deb10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:03:00, skipping insertion in model container [2023-11-29 06:03:00,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:02:57" (2/3) ... [2023-11-29 06:03:00,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@629deb10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:03:00, skipping insertion in model container [2023-11-29 06:03:00,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:03:00" (3/3) ... [2023-11-29 06:03:00,412 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_pop_harness_negated.i [2023-11-29 06:03:00,426 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:03:00,427 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 06:03:00,479 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:03:00,485 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@47cc9f7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:03:00,485 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 06:03:00,490 INFO L276 IsEmpty]: Start isEmpty. Operand has 425 states, 233 states have (on average 1.2789699570815452) internal successors, (298), 236 states have internal predecessors, (298), 162 states have call successors, (162), 28 states have call predecessors, (162), 28 states have return successors, (162), 162 states have call predecessors, (162), 162 states have call successors, (162) [2023-11-29 06:03:00,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-29 06:03:00,510 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:00,511 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 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] [2023-11-29 06:03:00,511 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:03:00,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:00,517 INFO L85 PathProgramCache]: Analyzing trace with hash -2077943634, now seen corresponding path program 1 times [2023-11-29 06:03:00,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:03:00,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975445667] [2023-11-29 06:03:00,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:00,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:03:00,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:01,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:03:01,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:01,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:03:01,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:01,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 06:03:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:01,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 06:03:01,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:01,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 06:03:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:01,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 06:03:01,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:01,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 06:03:01,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:01,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 06:03:01,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:01,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:03:01,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:01,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 06:03:01,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:01,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 06:03:01,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:01,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 06:03:01,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:01,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 06:03:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:01,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 06:03:01,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:01,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 06:03:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:01,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-29 06:03:01,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:01,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-29 06:03:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:01,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-29 06:03:01,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:01,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:03:01,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:01,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-29 06:03:01,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:01,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-29 06:03:01,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:01,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-29 06:03:01,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:01,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 06:03:01,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:01,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-29 06:03:01,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:01,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-29 06:03:01,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:01,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-29 06:03:01,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:01,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-29 06:03:01,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:01,375 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-11-29 06:03:01,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:03:01,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975445667] [2023-11-29 06:03:01,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975445667] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:03:01,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:03:01,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:03:01,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211478896] [2023-11-29 06:03:01,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:03:01,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:03:01,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:03:01,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:03:01,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:03:01,440 INFO L87 Difference]: Start difference. First operand has 425 states, 233 states have (on average 1.2789699570815452) internal successors, (298), 236 states have internal predecessors, (298), 162 states have call successors, (162), 28 states have call predecessors, (162), 28 states have return successors, (162), 162 states have call predecessors, (162), 162 states have call successors, (162) Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-29 06:03:05,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:05,476 INFO L93 Difference]: Finished difference Result 1003 states and 1743 transitions. [2023-11-29 06:03:05,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:03:05,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 148 [2023-11-29 06:03:05,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:05,499 INFO L225 Difference]: With dead ends: 1003 [2023-11-29 06:03:05,499 INFO L226 Difference]: Without dead ends: 598 [2023-11-29 06:03:05,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:03:05,512 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 295 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 557 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 1633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 557 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:05,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 933 Invalid, 1633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [557 Valid, 1076 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-29 06:03:05,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2023-11-29 06:03:05,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 422. [2023-11-29 06:03:05,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 231 states have (on average 1.2467532467532467) internal successors, (288), 234 states have internal predecessors, (288), 162 states have call successors, (162), 28 states have call predecessors, (162), 27 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2023-11-29 06:03:05,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 610 transitions. [2023-11-29 06:03:05,637 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 610 transitions. Word has length 148 [2023-11-29 06:03:05,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:05,637 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 610 transitions. [2023-11-29 06:03:05,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-29 06:03:05,638 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 610 transitions. [2023-11-29 06:03:05,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-29 06:03:05,643 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:05,643 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 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] [2023-11-29 06:03:05,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 06:03:05,643 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:03:05,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:05,644 INFO L85 PathProgramCache]: Analyzing trace with hash 933239992, now seen corresponding path program 1 times [2023-11-29 06:03:05,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:03:05,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276849507] [2023-11-29 06:03:05,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:05,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:03:05,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:06,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:03:06,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:06,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:03:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:06,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 06:03:06,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:06,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 06:03:06,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:06,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 06:03:06,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:06,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 06:03:06,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:06,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 06:03:06,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:06,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 06:03:06,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:06,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:03:06,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:06,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 06:03:06,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:06,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 06:03:06,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:06,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 06:03:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:06,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 06:03:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:06,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 06:03:06,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:06,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 06:03:06,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:06,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-29 06:03:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:06,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-29 06:03:06,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:06,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-29 06:03:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:06,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:03:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:06,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-29 06:03:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:06,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-29 06:03:06,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:06,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-29 06:03:06,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:06,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 06:03:06,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:06,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-29 06:03:06,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:06,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-29 06:03:06,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:06,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-29 06:03:06,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:06,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-29 06:03:06,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:06,565 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-11-29 06:03:06,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:03:06,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276849507] [2023-11-29 06:03:06,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276849507] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:03:06,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [319229013] [2023-11-29 06:03:06,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:06,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:06,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:03:06,571 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:03:06,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 06:03:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:07,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 2491 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:03:07,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:07,356 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2023-11-29 06:03:07,357 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:03:07,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [319229013] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:03:07,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:03:07,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-11-29 06:03:07,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203337804] [2023-11-29 06:03:07,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:03:07,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:03:07,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:03:07,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:03:07,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:03:07,361 INFO L87 Difference]: Start difference. First operand 422 states and 610 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-11-29 06:03:09,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:09,077 INFO L93 Difference]: Finished difference Result 801 states and 1175 transitions. [2023-11-29 06:03:09,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:03:09,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 148 [2023-11-29 06:03:09,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:09,083 INFO L225 Difference]: With dead ends: 801 [2023-11-29 06:03:09,083 INFO L226 Difference]: Without dead ends: 424 [2023-11-29 06:03:09,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:03:09,089 INFO L413 NwaCegarLoop]: 549 mSDtfsCounter, 57 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 2091 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:09,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 2091 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 06:03:09,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2023-11-29 06:03:09,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 424. [2023-11-29 06:03:09,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 232 states have (on average 1.2456896551724137) internal successors, (289), 236 states have internal predecessors, (289), 162 states have call successors, (162), 28 states have call predecessors, (162), 28 states have return successors, (173), 160 states have call predecessors, (173), 160 states have call successors, (173) [2023-11-29 06:03:09,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 624 transitions. [2023-11-29 06:03:09,148 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 624 transitions. Word has length 148 [2023-11-29 06:03:09,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:09,149 INFO L495 AbstractCegarLoop]: Abstraction has 424 states and 624 transitions. [2023-11-29 06:03:09,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-11-29 06:03:09,149 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 624 transitions. [2023-11-29 06:03:09,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-11-29 06:03:09,153 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:09,154 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:03:09,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:03:09,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:09,355 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:03:09,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:09,355 INFO L85 PathProgramCache]: Analyzing trace with hash -880475592, now seen corresponding path program 1 times [2023-11-29 06:03:09,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:03:09,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041986048] [2023-11-29 06:03:09,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:09,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:03:09,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:09,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:03:09,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:09,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 06:03:09,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:09,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 06:03:09,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:09,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 06:03:09,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:09,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 06:03:09,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:09,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 06:03:09,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:09,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-29 06:03:09,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:09,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 06:03:09,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:09,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:03:09,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:10,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-29 06:03:10,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:10,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 06:03:10,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:10,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 06:03:10,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:10,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 06:03:10,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:10,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 06:03:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:10,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 06:03:10,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:10,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-29 06:03:10,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:10,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:03:10,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:10,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 06:03:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:10,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-29 06:03:10,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:10,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:03:10,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:10,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-29 06:03:10,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:10,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-29 06:03:10,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:10,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-29 06:03:10,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:10,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-29 06:03:10,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:10,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-29 06:03:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:10,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-29 06:03:10,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:10,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-29 06:03:10,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:10,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-29 06:03:10,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:10,427 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2023-11-29 06:03:10,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:03:10,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041986048] [2023-11-29 06:03:10,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041986048] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:03:10,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078094691] [2023-11-29 06:03:10,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:10,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:10,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:03:10,430 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:03:10,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 06:03:11,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:11,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 2541 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:03:11,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:11,248 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2023-11-29 06:03:11,249 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:03:11,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078094691] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:03:11,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:03:11,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-11-29 06:03:11,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486597784] [2023-11-29 06:03:11,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:03:11,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:03:11,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:03:11,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:03:11,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:03:11,252 INFO L87 Difference]: Start difference. First operand 424 states and 624 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-29 06:03:15,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:15,082 INFO L93 Difference]: Finished difference Result 824 states and 1246 transitions. [2023-11-29 06:03:15,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:03:15,082 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 156 [2023-11-29 06:03:15,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:15,088 INFO L225 Difference]: With dead ends: 824 [2023-11-29 06:03:15,088 INFO L226 Difference]: Without dead ends: 445 [2023-11-29 06:03:15,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:03:15,093 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 109 mSDsluCounter, 2487 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 3013 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:15,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 3013 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-29 06:03:15,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2023-11-29 06:03:15,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 443. [2023-11-29 06:03:15,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 248 states have (on average 1.2540322580645162) internal successors, (311), 252 states have internal predecessors, (311), 164 states have call successors, (164), 28 states have call predecessors, (164), 29 states have return successors, (192), 163 states have call predecessors, (192), 162 states have call successors, (192) [2023-11-29 06:03:15,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 667 transitions. [2023-11-29 06:03:15,138 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 667 transitions. Word has length 156 [2023-11-29 06:03:15,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:15,138 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 667 transitions. [2023-11-29 06:03:15,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-29 06:03:15,139 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 667 transitions. [2023-11-29 06:03:15,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-29 06:03:15,141 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:15,142 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:03:15,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 06:03:15,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:15,342 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:03:15,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:15,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1184572037, now seen corresponding path program 1 times [2023-11-29 06:03:15,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:03:15,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127085251] [2023-11-29 06:03:15,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:15,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:03:15,463 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:03:15,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [269321815] [2023-11-29 06:03:15,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:15,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:15,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:03:15,464 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:03:15,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 06:03:16,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:16,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 2680 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:03:16,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:16,227 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2023-11-29 06:03:16,228 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:03:16,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:03:16,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127085251] [2023-11-29 06:03:16,228 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:03:16,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269321815] [2023-11-29 06:03:16,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [269321815] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:03:16,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:03:16,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:03:16,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956760372] [2023-11-29 06:03:16,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:03:16,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:03:16,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:03:16,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:03:16,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:03:16,232 INFO L87 Difference]: Start difference. First operand 443 states and 667 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-29 06:03:18,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:03:20,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:03:20,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:20,864 INFO L93 Difference]: Finished difference Result 847 states and 1305 transitions. [2023-11-29 06:03:20,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:03:20,865 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 169 [2023-11-29 06:03:20,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:20,871 INFO L225 Difference]: With dead ends: 847 [2023-11-29 06:03:20,871 INFO L226 Difference]: Without dead ends: 449 [2023-11-29 06:03:20,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:03:20,876 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 76 mSDsluCounter, 2038 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 2580 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:20,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 2580 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-11-29 06:03:20,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2023-11-29 06:03:20,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 443. [2023-11-29 06:03:20,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 248 states have (on average 1.2540322580645162) internal successors, (311), 252 states have internal predecessors, (311), 164 states have call successors, (164), 28 states have call predecessors, (164), 29 states have return successors, (192), 163 states have call predecessors, (192), 162 states have call successors, (192) [2023-11-29 06:03:20,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 667 transitions. [2023-11-29 06:03:20,916 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 667 transitions. Word has length 169 [2023-11-29 06:03:20,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:20,917 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 667 transitions. [2023-11-29 06:03:20,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-29 06:03:20,917 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 667 transitions. [2023-11-29 06:03:20,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-11-29 06:03:20,920 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:20,920 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:03:20,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 06:03:21,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:21,121 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:03:21,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:21,122 INFO L85 PathProgramCache]: Analyzing trace with hash -509374894, now seen corresponding path program 1 times [2023-11-29 06:03:21,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:03:21,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22785200] [2023-11-29 06:03:21,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:21,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:03:21,234 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:03:21,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [840194006] [2023-11-29 06:03:21,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:21,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:21,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:03:21,236 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:03:21,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 06:03:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:21,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 2747 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:03:21,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:22,117 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-29 06:03:22,118 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:03:22,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:03:22,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22785200] [2023-11-29 06:03:22,118 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:03:22,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840194006] [2023-11-29 06:03:22,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840194006] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:03:22,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:03:22,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 06:03:22,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398904934] [2023-11-29 06:03:22,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:03:22,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:03:22,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:03:22,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:03:22,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:03:22,122 INFO L87 Difference]: Start difference. First operand 443 states and 667 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2023-11-29 06:03:24,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:03:27,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:27,063 INFO L93 Difference]: Finished difference Result 857 states and 1309 transitions. [2023-11-29 06:03:27,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:03:27,064 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) Word has length 185 [2023-11-29 06:03:27,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:27,069 INFO L225 Difference]: With dead ends: 857 [2023-11-29 06:03:27,069 INFO L226 Difference]: Without dead ends: 459 [2023-11-29 06:03:27,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:03:27,073 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 136 mSDsluCounter, 2948 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 3467 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:27,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 3467 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-11-29 06:03:27,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2023-11-29 06:03:27,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 443. [2023-11-29 06:03:27,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 248 states have (on average 1.2540322580645162) internal successors, (311), 252 states have internal predecessors, (311), 164 states have call successors, (164), 28 states have call predecessors, (164), 29 states have return successors, (192), 163 states have call predecessors, (192), 162 states have call successors, (192) [2023-11-29 06:03:27,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 667 transitions. [2023-11-29 06:03:27,101 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 667 transitions. Word has length 185 [2023-11-29 06:03:27,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:27,101 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 667 transitions. [2023-11-29 06:03:27,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2023-11-29 06:03:27,102 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 667 transitions. [2023-11-29 06:03:27,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-29 06:03:27,103 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:27,104 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:03:27,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 06:03:27,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:27,307 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:03:27,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:27,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1707934603, now seen corresponding path program 2 times [2023-11-29 06:03:27,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:03:27,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685785153] [2023-11-29 06:03:27,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:27,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:03:27,428 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:03:27,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2064533096] [2023-11-29 06:03:27,429 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:03:27,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:27,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:03:27,430 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:03:27,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 06:03:28,032 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 06:03:28,032 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:03:28,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 1826 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:03:28,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:28,083 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2023-11-29 06:03:28,083 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:03:28,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:03:28,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685785153] [2023-11-29 06:03:28,084 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:03:28,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064533096] [2023-11-29 06:03:28,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064533096] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:03:28,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:03:28,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:03:28,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948872697] [2023-11-29 06:03:28,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:03:28,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:03:28,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:03:28,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:03:28,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:03:28,087 INFO L87 Difference]: Start difference. First operand 443 states and 667 transitions. Second operand has 6 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2023-11-29 06:03:28,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:28,557 INFO L93 Difference]: Finished difference Result 451 states and 675 transitions. [2023-11-29 06:03:28,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:03:28,558 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) Word has length 198 [2023-11-29 06:03:28,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:28,562 INFO L225 Difference]: With dead ends: 451 [2023-11-29 06:03:28,562 INFO L226 Difference]: Without dead ends: 449 [2023-11-29 06:03:28,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:03:28,564 INFO L413 NwaCegarLoop]: 582 mSDtfsCounter, 5 mSDsluCounter, 2302 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2884 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:28,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2884 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:03:28,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2023-11-29 06:03:28,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 448. [2023-11-29 06:03:28,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 251 states have (on average 1.250996015936255) internal successors, (314), 255 states have internal predecessors, (314), 165 states have call successors, (165), 29 states have call predecessors, (165), 30 states have return successors, (193), 164 states have call predecessors, (193), 163 states have call successors, (193) [2023-11-29 06:03:28,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 672 transitions. [2023-11-29 06:03:28,602 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 672 transitions. Word has length 198 [2023-11-29 06:03:28,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:28,603 INFO L495 AbstractCegarLoop]: Abstraction has 448 states and 672 transitions. [2023-11-29 06:03:28,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2023-11-29 06:03:28,603 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 672 transitions. [2023-11-29 06:03:28,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-11-29 06:03:28,606 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:28,607 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:03:28,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-29 06:03:28,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:28,808 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:03:28,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:28,809 INFO L85 PathProgramCache]: Analyzing trace with hash 235637524, now seen corresponding path program 3 times [2023-11-29 06:03:28,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:03:28,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747082644] [2023-11-29 06:03:28,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:28,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:03:28,930 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:03:28,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [909323676] [2023-11-29 06:03:28,930 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:03:28,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:28,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:03:28,931 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:03:28,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 06:03:29,951 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 06:03:29,952 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:03:29,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 2044 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 06:03:29,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:30,059 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2023-11-29 06:03:30,060 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:03:30,345 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 24 proven. 3 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2023-11-29 06:03:30,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:03:30,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747082644] [2023-11-29 06:03:30,346 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:03:30,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909323676] [2023-11-29 06:03:30,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909323676] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:03:30,347 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:03:30,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2023-11-29 06:03:30,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835062105] [2023-11-29 06:03:30,347 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:03:30,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:03:30,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:03:30,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:03:30,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:03:30,349 INFO L87 Difference]: Start difference. First operand 448 states and 672 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2023-11-29 06:03:31,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:31,392 INFO L93 Difference]: Finished difference Result 822 states and 1271 transitions. [2023-11-29 06:03:31,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:03:31,393 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 211 [2023-11-29 06:03:31,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:31,398 INFO L225 Difference]: With dead ends: 822 [2023-11-29 06:03:31,398 INFO L226 Difference]: Without dead ends: 455 [2023-11-29 06:03:31,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:03:31,402 INFO L413 NwaCegarLoop]: 565 mSDtfsCounter, 21 mSDsluCounter, 2190 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 2755 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:31,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 2755 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 06:03:31,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2023-11-29 06:03:31,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 453. [2023-11-29 06:03:31,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 254 states have (on average 1.2480314960629921) internal successors, (317), 257 states have internal predecessors, (317), 167 states have call successors, (167), 30 states have call predecessors, (167), 30 states have return successors, (195), 166 states have call predecessors, (195), 165 states have call successors, (195) [2023-11-29 06:03:31,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 679 transitions. [2023-11-29 06:03:31,441 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 679 transitions. Word has length 211 [2023-11-29 06:03:31,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:31,442 INFO L495 AbstractCegarLoop]: Abstraction has 453 states and 679 transitions. [2023-11-29 06:03:31,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2023-11-29 06:03:31,443 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 679 transitions. [2023-11-29 06:03:31,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-11-29 06:03:31,446 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:31,446 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:03:31,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 06:03:31,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:31,651 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:03:31,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:31,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1364544616, now seen corresponding path program 1 times [2023-11-29 06:03:31,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:03:31,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745157758] [2023-11-29 06:03:31,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:31,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:03:31,741 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:03:31,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [95231832] [2023-11-29 06:03:31,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:31,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:31,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:03:31,742 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:03:31,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 06:03:32,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:32,453 INFO L262 TraceCheckSpWp]: Trace formula consists of 2929 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:03:32,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:32,528 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2023-11-29 06:03:32,529 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:03:32,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:03:32,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745157758] [2023-11-29 06:03:32,529 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:03:32,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95231832] [2023-11-29 06:03:32,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95231832] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:03:32,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:03:32,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:03:32,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925814631] [2023-11-29 06:03:32,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:03:32,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:03:32,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:03:32,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:03:32,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:03:32,532 INFO L87 Difference]: Start difference. First operand 453 states and 679 transitions. Second operand has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 4 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) [2023-11-29 06:03:35,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:35,213 INFO L93 Difference]: Finished difference Result 833 states and 1269 transitions. [2023-11-29 06:03:35,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:03:35,214 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 4 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) Word has length 212 [2023-11-29 06:03:35,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:35,219 INFO L225 Difference]: With dead ends: 833 [2023-11-29 06:03:35,219 INFO L226 Difference]: Without dead ends: 455 [2023-11-29 06:03:35,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:03:35,222 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 62 mSDsluCounter, 2072 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 2620 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:35,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 2620 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-29 06:03:35,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2023-11-29 06:03:35,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2023-11-29 06:03:35,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 255 states have (on average 1.2470588235294118) internal successors, (318), 259 states have internal predecessors, (318), 167 states have call successors, (167), 30 states have call predecessors, (167), 31 states have return successors, (206), 166 states have call predecessors, (206), 165 states have call successors, (206) [2023-11-29 06:03:35,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 691 transitions. [2023-11-29 06:03:35,261 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 691 transitions. Word has length 212 [2023-11-29 06:03:35,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:35,261 INFO L495 AbstractCegarLoop]: Abstraction has 455 states and 691 transitions. [2023-11-29 06:03:35,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 4 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) [2023-11-29 06:03:35,262 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 691 transitions. [2023-11-29 06:03:35,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-11-29 06:03:35,265 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:35,266 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:03:35,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 06:03:35,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:35,467 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:03:35,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:35,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1214508091, now seen corresponding path program 1 times [2023-11-29 06:03:35,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:03:35,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580841215] [2023-11-29 06:03:35,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:35,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:03:35,575 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:03:35,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [65570120] [2023-11-29 06:03:35,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:35,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:35,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:03:35,576 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:03:35,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 06:03:36,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:36,328 INFO L262 TraceCheckSpWp]: Trace formula consists of 3118 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:03:36,338 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:36,431 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2023-11-29 06:03:36,432 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:03:36,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:03:36,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580841215] [2023-11-29 06:03:36,432 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:03:36,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65570120] [2023-11-29 06:03:36,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65570120] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:03:36,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:03:36,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 06:03:36,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401249958] [2023-11-29 06:03:36,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:03:36,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:03:36,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:03:36,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:03:36,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:03:36,435 INFO L87 Difference]: Start difference. First operand 455 states and 691 transitions. Second operand has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 7 states have internal predecessors, (92), 5 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (33), 4 states have call predecessors, (33), 5 states have call successors, (33) [2023-11-29 06:03:40,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:40,308 INFO L93 Difference]: Finished difference Result 838 states and 1294 transitions. [2023-11-29 06:03:40,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:03:40,308 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 7 states have internal predecessors, (92), 5 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (33), 4 states have call predecessors, (33), 5 states have call successors, (33) Word has length 233 [2023-11-29 06:03:40,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:40,313 INFO L225 Difference]: With dead ends: 838 [2023-11-29 06:03:40,313 INFO L226 Difference]: Without dead ends: 458 [2023-11-29 06:03:40,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:03:40,317 INFO L413 NwaCegarLoop]: 541 mSDtfsCounter, 81 mSDsluCounter, 2560 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 3101 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:40,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 3101 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-29 06:03:40,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2023-11-29 06:03:40,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 456. [2023-11-29 06:03:40,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 256 states have (on average 1.24609375) internal successors, (319), 260 states have internal predecessors, (319), 167 states have call successors, (167), 30 states have call predecessors, (167), 31 states have return successors, (206), 166 states have call predecessors, (206), 165 states have call successors, (206) [2023-11-29 06:03:40,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 692 transitions. [2023-11-29 06:03:40,356 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 692 transitions. Word has length 233 [2023-11-29 06:03:40,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:40,357 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 692 transitions. [2023-11-29 06:03:40,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 7 states have internal predecessors, (92), 5 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (33), 4 states have call predecessors, (33), 5 states have call successors, (33) [2023-11-29 06:03:40,357 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 692 transitions. [2023-11-29 06:03:40,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2023-11-29 06:03:40,359 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:40,359 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:03:40,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-29 06:03:40,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:40,560 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:03:40,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:40,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1450770418, now seen corresponding path program 1 times [2023-11-29 06:03:40,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:03:40,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007842230] [2023-11-29 06:03:40,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:40,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:03:40,684 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:03:40,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1309080334] [2023-11-29 06:03:40,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:40,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:40,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:03:40,686 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:03:40,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 06:03:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:41,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 3185 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:03:41,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:41,556 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-29 06:03:41,556 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:03:41,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:03:41,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007842230] [2023-11-29 06:03:41,556 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:03:41,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309080334] [2023-11-29 06:03:41,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309080334] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:03:41,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:03:41,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 06:03:41,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090158768] [2023-11-29 06:03:41,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:03:41,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:03:41,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:03:41,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:03:41,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:03:41,559 INFO L87 Difference]: Start difference. First operand 456 states and 692 transitions. Second operand has 9 states, 8 states have (on average 13.25) internal successors, (106), 9 states have internal predecessors, (106), 6 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (34), 5 states have call predecessors, (34), 6 states have call successors, (34) [2023-11-29 06:03:45,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:45,942 INFO L93 Difference]: Finished difference Result 837 states and 1281 transitions. [2023-11-29 06:03:45,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:03:45,943 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.25) internal successors, (106), 9 states have internal predecessors, (106), 6 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (34), 5 states have call predecessors, (34), 6 states have call successors, (34) Word has length 249 [2023-11-29 06:03:45,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:45,947 INFO L225 Difference]: With dead ends: 837 [2023-11-29 06:03:45,947 INFO L226 Difference]: Without dead ends: 456 [2023-11-29 06:03:45,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:03:45,949 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 141 mSDsluCounter, 3445 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 3963 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:45,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 3963 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-29 06:03:45,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2023-11-29 06:03:45,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 453. [2023-11-29 06:03:45,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 254 states have (on average 1.2480314960629921) internal successors, (317), 257 states have internal predecessors, (317), 167 states have call successors, (167), 30 states have call predecessors, (167), 30 states have return successors, (193), 166 states have call predecessors, (193), 165 states have call successors, (193) [2023-11-29 06:03:45,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 677 transitions. [2023-11-29 06:03:45,974 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 677 transitions. Word has length 249 [2023-11-29 06:03:45,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:45,975 INFO L495 AbstractCegarLoop]: Abstraction has 453 states and 677 transitions. [2023-11-29 06:03:45,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.25) internal successors, (106), 9 states have internal predecessors, (106), 6 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (34), 5 states have call predecessors, (34), 6 states have call successors, (34) [2023-11-29 06:03:45,975 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 677 transitions. [2023-11-29 06:03:45,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2023-11-29 06:03:45,976 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:45,977 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:03:45,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 06:03:46,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 06:03:46,177 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:03:46,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:46,178 INFO L85 PathProgramCache]: Analyzing trace with hash -332482059, now seen corresponding path program 2 times [2023-11-29 06:03:46,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:03:46,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394930471] [2023-11-29 06:03:46,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:46,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:03:46,275 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:03:46,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [590842210] [2023-11-29 06:03:46,276 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:03:46,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:46,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:03:46,277 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:03:46,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 06:03:47,023 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:03:47,024 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:03:47,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 3324 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:03:47,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:47,173 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2023-11-29 06:03:47,174 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:03:47,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:03:47,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394930471] [2023-11-29 06:03:47,174 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:03:47,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590842210] [2023-11-29 06:03:47,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590842210] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:03:47,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:03:47,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 06:03:47,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453279396] [2023-11-29 06:03:47,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:03:47,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:03:47,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:03:47,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:03:47,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:03:47,176 INFO L87 Difference]: Start difference. First operand 453 states and 677 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 6 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) [2023-11-29 06:03:51,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:51,164 INFO L93 Difference]: Finished difference Result 827 states and 1250 transitions. [2023-11-29 06:03:51,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:03:51,164 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 6 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) Word has length 262 [2023-11-29 06:03:51,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:51,168 INFO L225 Difference]: With dead ends: 827 [2023-11-29 06:03:51,169 INFO L226 Difference]: Without dead ends: 455 [2023-11-29 06:03:51,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:03:51,172 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 52 mSDsluCounter, 3073 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 3607 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:51,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 3607 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-29 06:03:51,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2023-11-29 06:03:51,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2023-11-29 06:03:51,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 255 states have (on average 1.2470588235294118) internal successors, (318), 258 states have internal predecessors, (318), 167 states have call successors, (167), 30 states have call predecessors, (167), 31 states have return successors, (199), 167 states have call predecessors, (199), 165 states have call successors, (199) [2023-11-29 06:03:51,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 684 transitions. [2023-11-29 06:03:51,208 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 684 transitions. Word has length 262 [2023-11-29 06:03:51,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:51,209 INFO L495 AbstractCegarLoop]: Abstraction has 455 states and 684 transitions. [2023-11-29 06:03:51,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 6 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) [2023-11-29 06:03:51,210 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 684 transitions. [2023-11-29 06:03:51,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2023-11-29 06:03:51,212 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:51,212 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:03:51,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-29 06:03:51,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:51,413 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:03:51,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:51,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1735389524, now seen corresponding path program 1 times [2023-11-29 06:03:51,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:03:51,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570407324] [2023-11-29 06:03:51,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:51,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:03:51,523 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:03:51,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1543968217] [2023-11-29 06:03:51,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:51,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:51,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:03:51,524 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:03:51,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 06:03:52,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:52,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 3559 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:03:52,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:52,449 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2023-11-29 06:03:52,449 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:03:52,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:03:52,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570407324] [2023-11-29 06:03:52,449 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:03:52,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543968217] [2023-11-29 06:03:52,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543968217] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:03:52,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:03:52,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:03:52,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915798996] [2023-11-29 06:03:52,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:03:52,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:03:52,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:03:52,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:03:52,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:03:52,452 INFO L87 Difference]: Start difference. First operand 455 states and 684 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-11-29 06:03:56,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:56,085 INFO L93 Difference]: Finished difference Result 891 states and 1374 transitions. [2023-11-29 06:03:56,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:03:56,086 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 274 [2023-11-29 06:03:56,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:56,089 INFO L225 Difference]: With dead ends: 891 [2023-11-29 06:03:56,089 INFO L226 Difference]: Without dead ends: 481 [2023-11-29 06:03:56,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:03:56,092 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 18 mSDsluCounter, 2114 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 2695 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:56,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 2695 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-29 06:03:56,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2023-11-29 06:03:56,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 463. [2023-11-29 06:03:56,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 263 states have (on average 1.247148288973384) internal successors, (328), 266 states have internal predecessors, (328), 167 states have call successors, (167), 30 states have call predecessors, (167), 31 states have return successors, (199), 167 states have call predecessors, (199), 165 states have call successors, (199) [2023-11-29 06:03:56,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 694 transitions. [2023-11-29 06:03:56,119 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 694 transitions. Word has length 274 [2023-11-29 06:03:56,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:56,119 INFO L495 AbstractCegarLoop]: Abstraction has 463 states and 694 transitions. [2023-11-29 06:03:56,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-11-29 06:03:56,120 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 694 transitions. [2023-11-29 06:03:56,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2023-11-29 06:03:56,121 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:56,121 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:03:56,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 06:03:56,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:56,322 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:03:56,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:56,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1551557356, now seen corresponding path program 1 times [2023-11-29 06:03:56,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:03:56,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465999327] [2023-11-29 06:03:56,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:56,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:03:56,455 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:03:56,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [649513186] [2023-11-29 06:03:56,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:56,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:56,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:03:56,457 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:03:56,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 06:03:57,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:57,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 3553 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:03:57,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:57,408 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2023-11-29 06:03:57,408 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:03:57,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:03:57,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465999327] [2023-11-29 06:03:57,409 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:03:57,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649513186] [2023-11-29 06:03:57,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649513186] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:03:57,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:03:57,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:03:57,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498849596] [2023-11-29 06:03:57,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:03:57,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:03:57,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:03:57,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:03:57,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:03:57,411 INFO L87 Difference]: Start difference. First operand 463 states and 694 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 4 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2023-11-29 06:03:58,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:58,579 INFO L93 Difference]: Finished difference Result 877 states and 1327 transitions. [2023-11-29 06:03:58,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:03:58,580 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 4 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 274 [2023-11-29 06:03:58,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:58,583 INFO L225 Difference]: With dead ends: 877 [2023-11-29 06:03:58,583 INFO L226 Difference]: Without dead ends: 492 [2023-11-29 06:03:58,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:03:58,586 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 28 mSDsluCounter, 2361 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 2962 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:58,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 2962 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 06:03:58,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2023-11-29 06:03:58,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 469. [2023-11-29 06:03:58,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 266 states have (on average 1.244360902255639) internal successors, (331), 269 states have internal predecessors, (331), 170 states have call successors, (170), 30 states have call predecessors, (170), 31 states have return successors, (202), 170 states have call predecessors, (202), 168 states have call successors, (202) [2023-11-29 06:03:58,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 703 transitions. [2023-11-29 06:03:58,612 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 703 transitions. Word has length 274 [2023-11-29 06:03:58,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:58,612 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 703 transitions. [2023-11-29 06:03:58,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 4 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2023-11-29 06:03:58,613 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 703 transitions. [2023-11-29 06:03:58,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2023-11-29 06:03:58,614 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:58,615 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:03:58,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 06:03:58,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:58,815 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:03:58,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:58,815 INFO L85 PathProgramCache]: Analyzing trace with hash -872285102, now seen corresponding path program 1 times [2023-11-29 06:03:58,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:03:58,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341065825] [2023-11-29 06:03:58,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:58,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:03:58,916 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:03:58,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1829932712] [2023-11-29 06:03:58,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:58,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:03:58,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:03:58,917 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:03:58,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 06:03:59,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:59,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 3550 conjuncts, 40 conjunts are in the unsatisfiable core [2023-11-29 06:03:59,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:59,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-29 06:03:59,979 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 227 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 06:03:59,979 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:03:59,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:03:59,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341065825] [2023-11-29 06:03:59,980 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:03:59,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829932712] [2023-11-29 06:03:59,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829932712] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:03:59,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:03:59,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 06:03:59,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357291392] [2023-11-29 06:03:59,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:03:59,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:03:59,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:03:59,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:03:59,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:03:59,983 INFO L87 Difference]: Start difference. First operand 469 states and 703 transitions. Second operand has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 7 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-11-29 06:04:05,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:04:05,722 INFO L93 Difference]: Finished difference Result 932 states and 1448 transitions. [2023-11-29 06:04:05,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:04:05,723 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 7 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) Word has length 274 [2023-11-29 06:04:05,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:04:05,728 INFO L225 Difference]: With dead ends: 932 [2023-11-29 06:04:05,728 INFO L226 Difference]: Without dead ends: 508 [2023-11-29 06:04:05,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2023-11-29 06:04:05,732 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 121 mSDsluCounter, 4899 mSDsCounter, 0 mSdLazyCounter, 1523 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 5434 SdHoareTripleChecker+Invalid, 1529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:04:05,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 5434 Invalid, 1529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1523 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-11-29 06:04:05,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2023-11-29 06:04:05,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 484. [2023-11-29 06:04:05,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 280 states have (on average 1.2464285714285714) internal successors, (349), 282 states have internal predecessors, (349), 170 states have call successors, (170), 30 states have call predecessors, (170), 32 states have return successors, (219), 172 states have call predecessors, (219), 168 states have call successors, (219) [2023-11-29 06:04:05,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 738 transitions. [2023-11-29 06:04:05,775 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 738 transitions. Word has length 274 [2023-11-29 06:04:05,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:04:05,776 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 738 transitions. [2023-11-29 06:04:05,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 7 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-11-29 06:04:05,776 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 738 transitions. [2023-11-29 06:04:05,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2023-11-29 06:04:05,778 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:04:05,779 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:04:05,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-29 06:04:05,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 06:04:05,979 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:04:05,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:04:05,980 INFO L85 PathProgramCache]: Analyzing trace with hash -748195184, now seen corresponding path program 1 times [2023-11-29 06:04:05,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:04:05,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138766080] [2023-11-29 06:04:05,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:04:05,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:04:06,083 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:04:06,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1469982099] [2023-11-29 06:04:06,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:04:06,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:04:06,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:04:06,084 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:04:06,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 06:04:06,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:06,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 3543 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:04:06,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:04:06,922 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 239 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2023-11-29 06:04:06,922 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:04:06,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:04:06,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138766080] [2023-11-29 06:04:06,922 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:04:06,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469982099] [2023-11-29 06:04:06,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469982099] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:04:06,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:04:06,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:04:06,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302219947] [2023-11-29 06:04:06,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:04:06,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:04:06,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:04:06,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:04:06,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:04:06,924 INFO L87 Difference]: Start difference. First operand 484 states and 738 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-29 06:04:07,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:04:07,167 INFO L93 Difference]: Finished difference Result 923 states and 1488 transitions. [2023-11-29 06:04:07,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:04:07,168 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 274 [2023-11-29 06:04:07,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:04:07,172 INFO L225 Difference]: With dead ends: 923 [2023-11-29 06:04:07,172 INFO L226 Difference]: Without dead ends: 484 [2023-11-29 06:04:07,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:04:07,177 INFO L413 NwaCegarLoop]: 589 mSDtfsCounter, 7 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1747 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:04:07,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1747 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:04:07,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2023-11-29 06:04:07,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 484. [2023-11-29 06:04:07,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 280 states have (on average 1.2428571428571429) internal successors, (348), 282 states have internal predecessors, (348), 170 states have call successors, (170), 30 states have call predecessors, (170), 32 states have return successors, (219), 172 states have call predecessors, (219), 168 states have call successors, (219) [2023-11-29 06:04:07,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 737 transitions. [2023-11-29 06:04:07,217 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 737 transitions. Word has length 274 [2023-11-29 06:04:07,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:04:07,218 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 737 transitions. [2023-11-29 06:04:07,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-29 06:04:07,219 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 737 transitions. [2023-11-29 06:04:07,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2023-11-29 06:04:07,221 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:04:07,221 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:04:07,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 06:04:07,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:04:07,422 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:04:07,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:04:07,422 INFO L85 PathProgramCache]: Analyzing trace with hash 459672658, now seen corresponding path program 1 times [2023-11-29 06:04:07,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:04:07,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135063641] [2023-11-29 06:04:07,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:04:07,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:04:07,535 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:04:07,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [898420204] [2023-11-29 06:04:07,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:04:07,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:04:07,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:04:07,537 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:04:07,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 06:04:08,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:08,360 INFO L262 TraceCheckSpWp]: Trace formula consists of 3546 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 06:04:08,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:04:08,392 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2023-11-29 06:04:08,392 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:04:08,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:04:08,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135063641] [2023-11-29 06:04:08,393 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:04:08,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898420204] [2023-11-29 06:04:08,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898420204] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:04:08,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:04:08,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:04:08,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226104237] [2023-11-29 06:04:08,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:04:08,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:04:08,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:04:08,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:04:08,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:04:08,395 INFO L87 Difference]: Start difference. First operand 484 states and 737 transitions. Second operand has 5 states, 4 states have (on average 26.75) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) [2023-11-29 06:04:09,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:04:09,517 INFO L93 Difference]: Finished difference Result 884 states and 1358 transitions. [2023-11-29 06:04:09,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:04:09,517 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 26.75) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) Word has length 274 [2023-11-29 06:04:09,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:04:09,521 INFO L225 Difference]: With dead ends: 884 [2023-11-29 06:04:09,521 INFO L226 Difference]: Without dead ends: 478 [2023-11-29 06:04:09,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:04:09,524 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 2 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2112 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:04:09,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2112 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 06:04:09,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2023-11-29 06:04:09,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 478. [2023-11-29 06:04:09,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 277 states have (on average 1.2418772563176896) internal successors, (344), 279 states have internal predecessors, (344), 167 states have call successors, (167), 30 states have call predecessors, (167), 32 states have return successors, (216), 169 states have call predecessors, (216), 165 states have call successors, (216) [2023-11-29 06:04:09,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 727 transitions. [2023-11-29 06:04:09,578 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 727 transitions. Word has length 274 [2023-11-29 06:04:09,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:04:09,579 INFO L495 AbstractCegarLoop]: Abstraction has 478 states and 727 transitions. [2023-11-29 06:04:09,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 26.75) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) [2023-11-29 06:04:09,579 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 727 transitions. [2023-11-29 06:04:09,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2023-11-29 06:04:09,582 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:04:09,582 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:04:09,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 06:04:09,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 06:04:09,795 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:04:09,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:04:09,796 INFO L85 PathProgramCache]: Analyzing trace with hash -894759722, now seen corresponding path program 1 times [2023-11-29 06:04:09,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:04:09,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892112760] [2023-11-29 06:04:09,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:04:09,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:04:09,894 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:04:09,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1543071892] [2023-11-29 06:04:09,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:04:09,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:04:09,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:04:09,895 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:04:09,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 06:04:10,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:10,780 INFO L262 TraceCheckSpWp]: Trace formula consists of 3552 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 06:04:10,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:04:10,812 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2023-11-29 06:04:10,812 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:04:10,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:04:10,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892112760] [2023-11-29 06:04:10,813 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:04:10,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543071892] [2023-11-29 06:04:10,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543071892] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:04:10,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:04:10,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:04:10,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906715093] [2023-11-29 06:04:10,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:04:10,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:04:10,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:04:10,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:04:10,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:04:10,815 INFO L87 Difference]: Start difference. First operand 478 states and 727 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-11-29 06:04:11,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:04:11,174 INFO L93 Difference]: Finished difference Result 931 states and 1452 transitions. [2023-11-29 06:04:11,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:04:11,175 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 274 [2023-11-29 06:04:11,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:04:11,178 INFO L225 Difference]: With dead ends: 931 [2023-11-29 06:04:11,178 INFO L226 Difference]: Without dead ends: 498 [2023-11-29 06:04:11,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:04:11,181 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 6 mSDsluCounter, 1748 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2341 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:04:11,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2341 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:04:11,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2023-11-29 06:04:11,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 490. [2023-11-29 06:04:11,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 289 states have (on average 1.245674740484429) internal successors, (360), 291 states have internal predecessors, (360), 167 states have call successors, (167), 30 states have call predecessors, (167), 32 states have return successors, (216), 169 states have call predecessors, (216), 165 states have call successors, (216) [2023-11-29 06:04:11,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 743 transitions. [2023-11-29 06:04:11,208 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 743 transitions. Word has length 274 [2023-11-29 06:04:11,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:04:11,208 INFO L495 AbstractCegarLoop]: Abstraction has 490 states and 743 transitions. [2023-11-29 06:04:11,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-11-29 06:04:11,209 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 743 transitions. [2023-11-29 06:04:11,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2023-11-29 06:04:11,210 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:04:11,211 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:04:11,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-29 06:04:11,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:04:11,411 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:04:11,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:04:11,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1675633622, now seen corresponding path program 1 times [2023-11-29 06:04:11,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:04:11,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378958988] [2023-11-29 06:04:11,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:04:11,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:04:11,538 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:04:11,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [677022640] [2023-11-29 06:04:11,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:04:11,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:04:11,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:04:11,540 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:04:11,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 06:04:12,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:12,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 3556 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:04:12,473 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:04:12,526 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 209 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2023-11-29 06:04:12,526 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:04:12,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:04:12,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378958988] [2023-11-29 06:04:12,527 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:04:12,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677022640] [2023-11-29 06:04:12,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [677022640] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:04:12,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:04:12,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:04:12,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109913793] [2023-11-29 06:04:12,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:04:12,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:04:12,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:04:12,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:04:12,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:04:12,529 INFO L87 Difference]: Start difference. First operand 490 states and 743 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-11-29 06:04:15,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:04:15,184 INFO L93 Difference]: Finished difference Result 935 states and 1497 transitions. [2023-11-29 06:04:15,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:04:15,184 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 278 [2023-11-29 06:04:15,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:04:15,189 INFO L225 Difference]: With dead ends: 935 [2023-11-29 06:04:15,189 INFO L226 Difference]: Without dead ends: 490 [2023-11-29 06:04:15,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:04:15,193 INFO L413 NwaCegarLoop]: 600 mSDtfsCounter, 10 mSDsluCounter, 1597 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2197 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:04:15,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2197 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-29 06:04:15,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2023-11-29 06:04:15,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2023-11-29 06:04:15,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 289 states have (on average 1.2422145328719723) internal successors, (359), 291 states have internal predecessors, (359), 167 states have call successors, (167), 30 states have call predecessors, (167), 32 states have return successors, (216), 169 states have call predecessors, (216), 165 states have call successors, (216) [2023-11-29 06:04:15,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 742 transitions. [2023-11-29 06:04:15,232 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 742 transitions. Word has length 278 [2023-11-29 06:04:15,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:04:15,233 INFO L495 AbstractCegarLoop]: Abstraction has 490 states and 742 transitions. [2023-11-29 06:04:15,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-11-29 06:04:15,233 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 742 transitions. [2023-11-29 06:04:15,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2023-11-29 06:04:15,235 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:04:15,236 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:04:15,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 06:04:15,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 06:04:15,436 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:04:15,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:04:15,437 INFO L85 PathProgramCache]: Analyzing trace with hash 399525910, now seen corresponding path program 1 times [2023-11-29 06:04:15,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:04:15,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256768726] [2023-11-29 06:04:15,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:04:15,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:04:15,527 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:04:15,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2023435913] [2023-11-29 06:04:15,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:04:15,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:04:15,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:04:15,529 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:04:15,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 06:04:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:16,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 3566 conjuncts, 57 conjunts are in the unsatisfiable core [2023-11-29 06:04:16,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:04:16,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-29 06:04:16,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-29 06:04:17,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2023-11-29 06:04:17,070 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-11-29 06:04:17,097 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2023-11-29 06:04:17,098 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:04:17,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:04:17,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256768726] [2023-11-29 06:04:17,098 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:04:17,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023435913] [2023-11-29 06:04:17,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023435913] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:04:17,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:04:17,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-29 06:04:17,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188619572] [2023-11-29 06:04:17,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:04:17,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:04:17,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:04:17,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:04:17,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:04:17,101 INFO L87 Difference]: Start difference. First operand 490 states and 742 transitions. Second operand has 14 states, 14 states have (on average 8.214285714285714) internal successors, (115), 14 states have internal predecessors, (115), 8 states have call successors, (35), 3 states have call predecessors, (35), 4 states have return successors, (33), 8 states have call predecessors, (33), 8 states have call successors, (33) [2023-11-29 06:04:22,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:04:26,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:04:30,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:04:34,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:04:38,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:04:42,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:04:46,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:04:55,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:05:00,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:05:05,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:05:09,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:05:13,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:05:17,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:05:22,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:05:26,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:05:26,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:05:26,198 INFO L93 Difference]: Finished difference Result 1466 states and 2271 transitions. [2023-11-29 06:05:26,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-29 06:05:26,200 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.214285714285714) internal successors, (115), 14 states have internal predecessors, (115), 8 states have call successors, (35), 3 states have call predecessors, (35), 4 states have return successors, (33), 8 states have call predecessors, (33), 8 states have call successors, (33) Word has length 278 [2023-11-29 06:05:26,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:05:26,207 INFO L225 Difference]: With dead ends: 1466 [2023-11-29 06:05:26,207 INFO L226 Difference]: Without dead ends: 1013 [2023-11-29 06:05:26,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 262 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=263, Invalid=1069, Unknown=0, NotChecked=0, Total=1332 [2023-11-29 06:05:26,218 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 666 mSDsluCounter, 4794 mSDsCounter, 0 mSdLazyCounter, 3024 mSolverCounterSat, 59 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 5375 SdHoareTripleChecker+Invalid, 3098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3024 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:05:26,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 5375 Invalid, 3098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3024 Invalid, 15 Unknown, 0 Unchecked, 68.3s Time] [2023-11-29 06:05:26,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states. [2023-11-29 06:05:26,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 969. [2023-11-29 06:05:26,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 587 states have (on average 1.2504258943781943) internal successors, (734), 591 states have internal predecessors, (734), 319 states have call successors, (319), 55 states have call predecessors, (319), 61 states have return successors, (450), 324 states have call predecessors, (450), 316 states have call successors, (450) [2023-11-29 06:05:26,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1503 transitions. [2023-11-29 06:05:26,321 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1503 transitions. Word has length 278 [2023-11-29 06:05:26,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:05:26,322 INFO L495 AbstractCegarLoop]: Abstraction has 969 states and 1503 transitions. [2023-11-29 06:05:26,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.214285714285714) internal successors, (115), 14 states have internal predecessors, (115), 8 states have call successors, (35), 3 states have call predecessors, (35), 4 states have return successors, (33), 8 states have call predecessors, (33), 8 states have call successors, (33) [2023-11-29 06:05:26,322 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1503 transitions. [2023-11-29 06:05:26,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2023-11-29 06:05:26,325 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:05:26,326 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:05:26,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 06:05:26,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:05:26,531 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:05:26,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:05:26,532 INFO L85 PathProgramCache]: Analyzing trace with hash 262714489, now seen corresponding path program 1 times [2023-11-29 06:05:26,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:05:26,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233615904] [2023-11-29 06:05:26,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:05:26,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:05:26,636 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:05:26,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [583812557] [2023-11-29 06:05:26,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:05:26,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:05:26,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:05:26,638 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:05:26,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 06:05:27,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:05:27,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 3586 conjuncts, 56 conjunts are in the unsatisfiable core [2023-11-29 06:05:27,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:05:29,071 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 318 proven. 10 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2023-11-29 06:05:29,071 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:05:29,683 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2023-11-29 06:05:29,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 19 [2023-11-29 06:05:29,767 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 443 trivial. 0 not checked. [2023-11-29 06:05:29,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:05:29,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233615904] [2023-11-29 06:05:29,768 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:05:29,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583812557] [2023-11-29 06:05:29,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [583812557] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:05:29,768 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:05:29,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14] total 26 [2023-11-29 06:05:29,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890458209] [2023-11-29 06:05:29,769 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:05:29,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 06:05:29,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:05:29,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 06:05:29,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=553, Unknown=0, NotChecked=0, Total=650 [2023-11-29 06:05:29,772 INFO L87 Difference]: Start difference. First operand 969 states and 1503 transitions. Second operand has 26 states, 24 states have (on average 7.375) internal successors, (177), 26 states have internal predecessors, (177), 15 states have call successors, (64), 4 states have call predecessors, (64), 7 states have return successors, (62), 13 states have call predecessors, (62), 15 states have call successors, (62) [2023-11-29 06:05:55,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:05:57,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:05:57,617 INFO L93 Difference]: Finished difference Result 2933 states and 4756 transitions. [2023-11-29 06:05:57,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-11-29 06:05:57,618 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 7.375) internal successors, (177), 26 states have internal predecessors, (177), 15 states have call successors, (64), 4 states have call predecessors, (64), 7 states have return successors, (62), 13 states have call predecessors, (62), 15 states have call successors, (62) Word has length 283 [2023-11-29 06:05:57,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:05:57,635 INFO L225 Difference]: With dead ends: 2933 [2023-11-29 06:05:57,635 INFO L226 Difference]: Without dead ends: 2494 [2023-11-29 06:05:57,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 603 GetRequests, 534 SyntacticMatches, 7 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 982 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=717, Invalid=3315, Unknown=0, NotChecked=0, Total=4032 [2023-11-29 06:05:57,640 INFO L413 NwaCegarLoop]: 999 mSDtfsCounter, 1278 mSDsluCounter, 7439 mSDsCounter, 0 mSdLazyCounter, 9056 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 8438 SdHoareTripleChecker+Invalid, 9182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 9056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:05:57,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1327 Valid, 8438 Invalid, 9182 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [126 Valid, 9056 Invalid, 0 Unknown, 0 Unchecked, 25.5s Time] [2023-11-29 06:05:57,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2494 states. [2023-11-29 06:05:57,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2494 to 2369. [2023-11-29 06:05:57,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2369 states, 1461 states have (on average 1.2505133470225873) internal successors, (1827), 1477 states have internal predecessors, (1827), 759 states have call successors, (759), 124 states have call predecessors, (759), 147 states have return successors, (1214), 772 states have call predecessors, (1214), 752 states have call successors, (1214) [2023-11-29 06:05:57,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2369 states to 2369 states and 3800 transitions. [2023-11-29 06:05:57,874 INFO L78 Accepts]: Start accepts. Automaton has 2369 states and 3800 transitions. Word has length 283 [2023-11-29 06:05:57,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:05:57,875 INFO L495 AbstractCegarLoop]: Abstraction has 2369 states and 3800 transitions. [2023-11-29 06:05:57,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 7.375) internal successors, (177), 26 states have internal predecessors, (177), 15 states have call successors, (64), 4 states have call predecessors, (64), 7 states have return successors, (62), 13 states have call predecessors, (62), 15 states have call successors, (62) [2023-11-29 06:05:57,876 INFO L276 IsEmpty]: Start isEmpty. Operand 2369 states and 3800 transitions. [2023-11-29 06:05:57,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2023-11-29 06:05:57,880 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:05:57,880 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:05:57,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-29 06:05:58,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:05:58,083 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:05:58,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:05:58,084 INFO L85 PathProgramCache]: Analyzing trace with hash 352774779, now seen corresponding path program 1 times [2023-11-29 06:05:58,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:05:58,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082432249] [2023-11-29 06:05:58,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:05:58,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:05:58,189 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:05:58,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1355430756] [2023-11-29 06:05:58,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:05:58,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:05:58,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:05:58,191 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:05:58,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 06:05:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:05:59,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 3583 conjuncts, 55 conjunts are in the unsatisfiable core [2023-11-29 06:05:59,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:05:59,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-29 06:06:00,349 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 320 proven. 8 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2023-11-29 06:06:00,349 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:06:00,980 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 443 trivial. 0 not checked. [2023-11-29 06:06:00,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:06:00,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082432249] [2023-11-29 06:06:00,980 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:06:00,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355430756] [2023-11-29 06:06:00,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355430756] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:06:00,981 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:06:00,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12] total 25 [2023-11-29 06:06:00,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225138629] [2023-11-29 06:06:00,981 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:06:00,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-29 06:06:00,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:06:00,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-29 06:06:00,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=508, Unknown=0, NotChecked=0, Total=600 [2023-11-29 06:06:00,985 INFO L87 Difference]: Start difference. First operand 2369 states and 3800 transitions. Second operand has 25 states, 23 states have (on average 8.0) internal successors, (184), 25 states have internal predecessors, (184), 18 states have call successors, (66), 4 states have call predecessors, (66), 7 states have return successors, (64), 16 states have call predecessors, (64), 18 states have call successors, (64) [2023-11-29 06:06:07,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:06:28,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:06:28,074 INFO L93 Difference]: Finished difference Result 9857 states and 16768 transitions. [2023-11-29 06:06:28,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-11-29 06:06:28,075 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 8.0) internal successors, (184), 25 states have internal predecessors, (184), 18 states have call successors, (66), 4 states have call predecessors, (66), 7 states have return successors, (64), 16 states have call predecessors, (64), 18 states have call successors, (64) Word has length 283 [2023-11-29 06:06:28,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:06:28,145 INFO L225 Difference]: With dead ends: 9857 [2023-11-29 06:06:28,146 INFO L226 Difference]: Without dead ends: 7548 [2023-11-29 06:06:28,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 592 GetRequests, 535 SyntacticMatches, 7 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 633 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=480, Invalid=2172, Unknown=0, NotChecked=0, Total=2652 [2023-11-29 06:06:28,164 INFO L413 NwaCegarLoop]: 993 mSDtfsCounter, 1226 mSDsluCounter, 6761 mSDsCounter, 0 mSdLazyCounter, 8044 mSolverCounterSat, 126 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1273 SdHoareTripleChecker+Valid, 7754 SdHoareTripleChecker+Invalid, 8171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 8044 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:06:28,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1273 Valid, 7754 Invalid, 8171 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [126 Valid, 8044 Invalid, 1 Unknown, 0 Unchecked, 25.1s Time] [2023-11-29 06:06:28,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7548 states. [2023-11-29 06:06:28,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7548 to 7293. [2023-11-29 06:06:28,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7293 states, 4596 states have (on average 1.2493472584856398) internal successors, (5742), 4670 states have internal predecessors, (5742), 2243 states have call successors, (2243), 352 states have call predecessors, (2243), 452 states have return successors, (4408), 2285 states have call predecessors, (4408), 2226 states have call successors, (4408) [2023-11-29 06:06:29,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7293 states to 7293 states and 12393 transitions. [2023-11-29 06:06:29,023 INFO L78 Accepts]: Start accepts. Automaton has 7293 states and 12393 transitions. Word has length 283 [2023-11-29 06:06:29,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:06:29,023 INFO L495 AbstractCegarLoop]: Abstraction has 7293 states and 12393 transitions. [2023-11-29 06:06:29,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 8.0) internal successors, (184), 25 states have internal predecessors, (184), 18 states have call successors, (66), 4 states have call predecessors, (66), 7 states have return successors, (64), 16 states have call predecessors, (64), 18 states have call successors, (64) [2023-11-29 06:06:29,024 INFO L276 IsEmpty]: Start isEmpty. Operand 7293 states and 12393 transitions. [2023-11-29 06:06:29,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2023-11-29 06:06:29,030 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:06:29,031 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:06:29,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 06:06:29,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-29 06:06:29,231 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:06:29,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:06:29,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1570475651, now seen corresponding path program 1 times [2023-11-29 06:06:29,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:06:29,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155908450] [2023-11-29 06:06:29,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:06:29,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:06:29,379 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:06:29,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [378485170] [2023-11-29 06:06:29,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:06:29,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:06:29,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:06:29,381 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:06:29,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 06:06:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:06:30,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 3580 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-29 06:06:30,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:06:30,637 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 229 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2023-11-29 06:06:30,638 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:06:30,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:06:30,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155908450] [2023-11-29 06:06:30,638 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:06:30,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378485170] [2023-11-29 06:06:30,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378485170] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:06:30,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:06:30,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 06:06:30,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959935128] [2023-11-29 06:06:30,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:06:30,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:06:30,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:06:30,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:06:30,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:06:30,640 INFO L87 Difference]: Start difference. First operand 7293 states and 12393 transitions. Second operand has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 6 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (35), 6 states have call predecessors, (35), 6 states have call successors, (35) [2023-11-29 06:06:35,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:06:35,587 INFO L93 Difference]: Finished difference Result 14484 states and 25350 transitions. [2023-11-29 06:06:35,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:06:35,588 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 6 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (35), 6 states have call predecessors, (35), 6 states have call successors, (35) Word has length 283 [2023-11-29 06:06:35,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:06:35,645 INFO L225 Difference]: With dead ends: 14484 [2023-11-29 06:06:35,646 INFO L226 Difference]: Without dead ends: 7719 [2023-11-29 06:06:35,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:06:35,679 INFO L413 NwaCegarLoop]: 532 mSDtfsCounter, 108 mSDsluCounter, 3885 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 4417 SdHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:06:35,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 4417 Invalid, 1213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-11-29 06:06:35,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7719 states. [2023-11-29 06:06:36,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7719 to 7275. [2023-11-29 06:06:36,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7275 states, 4578 states have (on average 1.2472695500218436) internal successors, (5710), 4666 states have internal predecessors, (5710), 2243 states have call successors, (2243), 352 states have call predecessors, (2243), 452 states have return successors, (4408), 2271 states have call predecessors, (4408), 2226 states have call successors, (4408) [2023-11-29 06:06:36,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7275 states to 7275 states and 12361 transitions. [2023-11-29 06:06:36,576 INFO L78 Accepts]: Start accepts. Automaton has 7275 states and 12361 transitions. Word has length 283 [2023-11-29 06:06:36,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:06:36,577 INFO L495 AbstractCegarLoop]: Abstraction has 7275 states and 12361 transitions. [2023-11-29 06:06:36,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 6 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (35), 6 states have call predecessors, (35), 6 states have call successors, (35) [2023-11-29 06:06:36,577 INFO L276 IsEmpty]: Start isEmpty. Operand 7275 states and 12361 transitions. [2023-11-29 06:06:36,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-11-29 06:06:36,583 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:06:36,584 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:06:36,595 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 06:06:36,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-29 06:06:36,784 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:06:36,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:06:36,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1846222797, now seen corresponding path program 1 times [2023-11-29 06:06:36,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:06:36,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875782691] [2023-11-29 06:06:36,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:06:36,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:06:36,903 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:06:36,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1234004924] [2023-11-29 06:06:36,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:06:36,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:06:36,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:06:36,905 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:06:36,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 06:06:37,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:06:37,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 3593 conjuncts, 87 conjunts are in the unsatisfiable core [2023-11-29 06:06:37,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:06:37,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-29 06:06:37,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-29 06:06:39,051 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 318 proven. 4 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2023-11-29 06:06:39,051 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:06:40,006 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 40 proven. 3 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2023-11-29 06:06:40,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:06:40,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875782691] [2023-11-29 06:06:40,007 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:06:40,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234004924] [2023-11-29 06:06:40,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234004924] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:06:40,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:06:40,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 14] total 31 [2023-11-29 06:06:40,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090101102] [2023-11-29 06:06:40,008 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:06:40,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-11-29 06:06:40,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:06:40,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-11-29 06:06:40,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=828, Unknown=0, NotChecked=0, Total=930 [2023-11-29 06:06:40,011 INFO L87 Difference]: Start difference. First operand 7275 states and 12361 transitions. Second operand has 31 states, 28 states have (on average 6.571428571428571) internal successors, (184), 31 states have internal predecessors, (184), 16 states have call successors, (64), 3 states have call predecessors, (64), 6 states have return successors, (62), 13 states have call predecessors, (62), 16 states have call successors, (62) [2023-11-29 06:07:02,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:07:02,822 INFO L93 Difference]: Finished difference Result 14672 states and 25148 transitions. [2023-11-29 06:07:02,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-11-29 06:07:02,823 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 28 states have (on average 6.571428571428571) internal successors, (184), 31 states have internal predecessors, (184), 16 states have call successors, (64), 3 states have call predecessors, (64), 6 states have return successors, (62), 13 states have call predecessors, (62), 16 states have call successors, (62) Word has length 285 [2023-11-29 06:07:02,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:07:02,875 INFO L225 Difference]: With dead ends: 14672 [2023-11-29 06:07:02,876 INFO L226 Difference]: Without dead ends: 11972 [2023-11-29 06:07:02,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 601 GetRequests, 545 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 697 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=416, Invalid=2664, Unknown=0, NotChecked=0, Total=3080 [2023-11-29 06:07:02,890 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 627 mSDsluCounter, 7042 mSDsCounter, 0 mSdLazyCounter, 6931 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 7576 SdHoareTripleChecker+Invalid, 6994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 6931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:07:02,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 7576 Invalid, 6994 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 6931 Invalid, 0 Unknown, 0 Unchecked, 20.9s Time] [2023-11-29 06:07:02,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11972 states. [2023-11-29 06:07:04,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11972 to 11359. [2023-11-29 06:07:04,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11359 states, 7116 states have (on average 1.2484541877459248) internal successors, (8884), 7260 states have internal predecessors, (8884), 3538 states have call successors, (3538), 549 states have call predecessors, (3538), 703 states have return successors, (6951), 3573 states have call predecessors, (6951), 3512 states have call successors, (6951) [2023-11-29 06:07:04,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11359 states to 11359 states and 19373 transitions. [2023-11-29 06:07:04,202 INFO L78 Accepts]: Start accepts. Automaton has 11359 states and 19373 transitions. Word has length 285 [2023-11-29 06:07:04,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:07:04,202 INFO L495 AbstractCegarLoop]: Abstraction has 11359 states and 19373 transitions. [2023-11-29 06:07:04,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 28 states have (on average 6.571428571428571) internal successors, (184), 31 states have internal predecessors, (184), 16 states have call successors, (64), 3 states have call predecessors, (64), 6 states have return successors, (62), 13 states have call predecessors, (62), 16 states have call successors, (62) [2023-11-29 06:07:04,202 INFO L276 IsEmpty]: Start isEmpty. Operand 11359 states and 19373 transitions. [2023-11-29 06:07:04,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2023-11-29 06:07:04,211 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:07:04,211 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:07:04,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 06:07:04,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 06:07:04,412 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:07:04,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:07:04,413 INFO L85 PathProgramCache]: Analyzing trace with hash 30955012, now seen corresponding path program 1 times [2023-11-29 06:07:04,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:07:04,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472983268] [2023-11-29 06:07:04,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:07:04,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:07:04,569 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:07:04,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1211155798] [2023-11-29 06:07:04,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:07:04,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:07:04,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:07:04,570 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:07:04,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 06:07:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:07:05,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 3594 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 06:07:05,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:07:05,632 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2023-11-29 06:07:05,633 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:07:05,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:07:05,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472983268] [2023-11-29 06:07:05,633 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:07:05,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211155798] [2023-11-29 06:07:05,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211155798] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:07:05,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:07:05,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 06:07:05,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834124784] [2023-11-29 06:07:05,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:07:05,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:07:05,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:07:05,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:07:05,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:07:05,635 INFO L87 Difference]: Start difference. First operand 11359 states and 19373 transitions. Second operand has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 4 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 5 states have call predecessors, (32), 4 states have call successors, (32) [2023-11-29 06:07:09,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:07:11,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:07:12,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:07:12,984 INFO L93 Difference]: Finished difference Result 23277 states and 40061 transitions. [2023-11-29 06:07:12,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:07:12,984 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 4 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 5 states have call predecessors, (32), 4 states have call successors, (32) Word has length 287 [2023-11-29 06:07:12,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:07:13,053 INFO L225 Difference]: With dead ends: 23277 [2023-11-29 06:07:13,053 INFO L226 Difference]: Without dead ends: 12260 [2023-11-29 06:07:13,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:07:13,170 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 33 mSDsluCounter, 3484 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 4065 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:07:13,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 4065 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2023-11-29 06:07:13,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12260 states. [2023-11-29 06:07:14,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12260 to 11547. [2023-11-29 06:07:14,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11547 states, 7242 states have (on average 1.2463407898370615) internal successors, (9026), 7372 states have internal predecessors, (9026), 3594 states have call successors, (3594), 549 states have call predecessors, (3594), 709 states have return successors, (7057), 3649 states have call predecessors, (7057), 3568 states have call successors, (7057) [2023-11-29 06:07:14,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11547 states to 11547 states and 19677 transitions. [2023-11-29 06:07:14,555 INFO L78 Accepts]: Start accepts. Automaton has 11547 states and 19677 transitions. Word has length 287 [2023-11-29 06:07:14,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:07:14,555 INFO L495 AbstractCegarLoop]: Abstraction has 11547 states and 19677 transitions. [2023-11-29 06:07:14,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 4 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 5 states have call predecessors, (32), 4 states have call successors, (32) [2023-11-29 06:07:14,555 INFO L276 IsEmpty]: Start isEmpty. Operand 11547 states and 19677 transitions. [2023-11-29 06:07:14,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2023-11-29 06:07:14,562 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:07:14,562 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:07:14,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 06:07:14,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 06:07:14,763 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:07:14,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:07:14,763 INFO L85 PathProgramCache]: Analyzing trace with hash 710227266, now seen corresponding path program 1 times [2023-11-29 06:07:14,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:07:14,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607735666] [2023-11-29 06:07:14,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:07:14,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:07:14,857 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:07:14,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2080567745] [2023-11-29 06:07:14,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:07:14,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:07:14,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:07:14,859 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:07:14,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 06:07:16,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:07:16,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 3591 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:07:16,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:07:16,138 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2023-11-29 06:07:16,139 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:07:16,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:07:16,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607735666] [2023-11-29 06:07:16,139 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:07:16,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080567745] [2023-11-29 06:07:16,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2080567745] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:07:16,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:07:16,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:07:16,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007244414] [2023-11-29 06:07:16,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:07:16,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:07:16,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:07:16,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:07:16,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:07:16,141 INFO L87 Difference]: Start difference. First operand 11547 states and 19677 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 4 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2023-11-29 06:07:18,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:07:18,093 INFO L93 Difference]: Finished difference Result 22564 states and 38541 transitions. [2023-11-29 06:07:18,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:07:18,093 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 4 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 287 [2023-11-29 06:07:18,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:07:18,177 INFO L225 Difference]: With dead ends: 22564 [2023-11-29 06:07:18,177 INFO L226 Difference]: Without dead ends: 11371 [2023-11-29 06:07:18,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:07:18,239 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 26 mSDsluCounter, 2255 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 2834 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:07:18,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 2834 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 06:07:18,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11371 states. [2023-11-29 06:07:19,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11371 to 11371. [2023-11-29 06:07:19,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11371 states, 7122 states have (on average 1.2448750351024993) internal successors, (8866), 7272 states have internal predecessors, (8866), 3538 states have call successors, (3538), 549 states have call predecessors, (3538), 709 states have return successors, (6963), 3573 states have call predecessors, (6963), 3512 states have call successors, (6963) [2023-11-29 06:07:19,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11371 states to 11371 states and 19367 transitions. [2023-11-29 06:07:19,608 INFO L78 Accepts]: Start accepts. Automaton has 11371 states and 19367 transitions. Word has length 287 [2023-11-29 06:07:19,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:07:19,609 INFO L495 AbstractCegarLoop]: Abstraction has 11371 states and 19367 transitions. [2023-11-29 06:07:19,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 4 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2023-11-29 06:07:19,609 INFO L276 IsEmpty]: Start isEmpty. Operand 11371 states and 19367 transitions. [2023-11-29 06:07:19,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2023-11-29 06:07:19,614 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:07:19,614 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:07:19,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 06:07:19,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 06:07:19,815 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:07:19,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:07:19,815 INFO L85 PathProgramCache]: Analyzing trace with hash 663462673, now seen corresponding path program 1 times [2023-11-29 06:07:19,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:07:19,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2707856] [2023-11-29 06:07:19,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:07:19,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:07:19,928 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:07:19,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1365782197] [2023-11-29 06:07:19,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:07:19,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:07:19,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:07:19,930 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:07:19,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bad99a75-e54a-4733-809d-960f9dedd239/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 06:07:21,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:07:21,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 3628 conjuncts, 122 conjunts are in the unsatisfiable core [2023-11-29 06:07:21,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:07:21,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-29 06:07:21,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-29 06:08:01,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 42 [2023-11-29 06:08:01,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 38 [2023-11-29 06:08:58,532 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 06:08:58,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 6 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 137 treesize of output 145 [2023-11-29 06:09:02,649 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 370 proven. 12 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-11-29 06:09:02,650 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:09:41,223 INFO L378 Elim1Store]: Elim1 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 71 treesize of output 35 [2023-11-29 06:09:55,350 INFO L349 Elim1Store]: treesize reduction 47, result has 68.9 percent of original size [2023-11-29 06:09:55,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 110 treesize of output 165 [2023-11-29 06:09:56,094 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 24 proven. 22 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2023-11-29 06:09:56,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:09:56,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2707856] [2023-11-29 06:09:56,095 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:09:56,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365782197] [2023-11-29 06:09:56,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365782197] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:09:56,095 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:09:56,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 29] total 57 [2023-11-29 06:09:56,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053680225] [2023-11-29 06:09:56,096 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:09:56,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2023-11-29 06:09:56,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:09:56,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2023-11-29 06:09:56,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=2923, Unknown=21, NotChecked=0, Total=3192 [2023-11-29 06:09:56,099 INFO L87 Difference]: Start difference. First operand 11371 states and 19367 transitions. Second operand has 57 states, 55 states have (on average 3.963636363636364) internal successors, (218), 54 states have internal predecessors, (218), 25 states have call successors, (72), 9 states have call predecessors, (72), 11 states have return successors, (68), 22 states have call predecessors, (68), 25 states have call successors, (68) [2023-11-29 06:10:02,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:10:07,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:10:14,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:10:18,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:10:22,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:10:26,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:10:30,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:10:34,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:10:43,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:10:47,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:10:51,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:10:55,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:10:59,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:11:03,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:11:07,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:11:15,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:11:19,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:11:23,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:11:27,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:11:31,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:11:35,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:11:40,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:11:44,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:11:48,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:11:52,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:11:56,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:12:00,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:12:04,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:12:08,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:12:12,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:12:16,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:12:20,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:12:24,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:12:28,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:12:32,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:12:36,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:12:40,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:12:44,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:12:49,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:12:53,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:12:57,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:13:01,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:13:05,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:13:09,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:13:21,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:13:30,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:13:38,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:13:46,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:13:54,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:14:02,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:14:06,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:14:10,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:14:14,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:14:18,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:14:22,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:14:26,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:14:31,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:14:35,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:14:39,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:14:47,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:14:51,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:14:59,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:15:03,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:15:11,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:15:15,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:15:24,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:15:32,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:15:40,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:15:44,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:15:53,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:16:01,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:16:10,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:16:14,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:16:22,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:16:30,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:16:38,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:16:42,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:16:46,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:16:55,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:16:59,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:17:03,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 06:17:07,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]