./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/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_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/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_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/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 1ebada516f0ccae5e55b91f6e0fe5802f70171054dc79c047f46877ad506c65e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:51:09,754 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:51:09,818 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-29 00:51:09,822 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:51:09,823 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:51:09,845 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:51:09,846 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:51:09,847 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:51:09,847 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:51:09,848 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:51:09,848 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:51:09,849 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:51:09,850 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:51:09,850 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:51:09,851 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:51:09,851 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:51:09,852 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:51:09,852 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:51:09,853 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:51:09,853 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:51:09,854 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:51:09,855 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:51:09,855 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:51:09,856 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:51:09,856 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:51:09,856 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:51:09,857 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:51:09,857 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:51:09,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:51:09,858 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:51:09,859 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:51:09,859 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:51:09,859 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:51:09,860 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 00:51:09,860 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:51:09,860 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:51:09,860 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:51:09,861 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:51:09,861 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:51:09,861 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_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ebada516f0ccae5e55b91f6e0fe5802f70171054dc79c047f46877ad506c65e [2023-11-29 00:51:10,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:51:10,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:51:10,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:51:10,112 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:51:10,113 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:51:10,114 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i [2023-11-29 00:51:12,879 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:51:13,271 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:51:13,272 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i [2023-11-29 00:51:13,303 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/data/205758147/d71fcca7ebfd4a4189eee5b75164c421/FLAG8693742ae [2023-11-29 00:51:13,317 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/data/205758147/d71fcca7ebfd4a4189eee5b75164c421 [2023-11-29 00:51:13,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:51:13,321 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:51:13,323 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:51:13,323 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:51:13,328 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:51:13,329 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:51:13" (1/1) ... [2023-11-29 00:51:13,330 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@369e8aa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:51:13, skipping insertion in model container [2023-11-29 00:51:13,330 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:51:13" (1/1) ... [2023-11-29 00:51:13,415 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:51:13,636 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_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4499,4512] [2023-11-29 00:51:13,642 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_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4559,4572] [2023-11-29 00:51:14,487 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:14,488 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:14,488 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:14,489 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:14,490 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:14,501 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:14,502 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:14,504 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:14,504 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:14,506 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:14,507 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:14,508 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:14,508 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:14,936 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-29 00:51:14,937 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-29 00:51:14,938 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-29 00:51:14,939 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-29 00:51:14,941 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-29 00:51:14,941 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-29 00:51:14,942 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-29 00:51:14,943 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-29 00:51:14,943 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-29 00:51:14,944 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-29 00:51:15,115 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,120 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,179 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,179 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,180 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,180 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,180 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,181 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,181 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,182 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,182 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,182 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,182 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,183 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,183 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,186 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,186 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,186 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,187 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,189 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,190 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,196 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,197 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,197 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,207 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,208 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,208 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,213 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:51:15,248 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:51:15,262 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_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4499,4512] [2023-11-29 00:51:15,263 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_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4559,4572] [2023-11-29 00:51:15,302 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,303 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,303 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,304 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,304 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,311 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,311 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,312 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,313 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,314 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,314 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,315 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,315 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,352 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-29 00:51:15,353 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-29 00:51:15,354 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-29 00:51:15,354 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-29 00:51:15,355 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-29 00:51:15,356 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-29 00:51:15,356 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-29 00:51:15,357 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-29 00:51:15,357 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-29 00:51:15,358 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-29 00:51:15,396 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,401 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7771-7782] [2023-11-29 00:51:15,428 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,429 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,429 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,429 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,430 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,430 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,431 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,431 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,431 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,432 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,432 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,432 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,433 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,433 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,434 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,434 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,434 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,437 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,437 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,443 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,444 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,445 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,451 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,451 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,451 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-29 00:51:15,455 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:51:15,691 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:51:15,691 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:51:15,691 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:51:15,692 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:51:15,692 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:51:15,692 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:51:15,692 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:51:15,692 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:51:15,692 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:51:15,692 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:51:15,693 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:51:15,693 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:51:15,693 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:51:15,693 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:51:15,693 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:51:15,701 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:51:15,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:51:15 WrapperNode [2023-11-29 00:51:15,701 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:51:15,702 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:51:15,702 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:51:15,702 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:51:15,710 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:51:15" (1/1) ... [2023-11-29 00:51:15,771 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:51:15" (1/1) ... [2023-11-29 00:51:15,845 INFO L138 Inliner]: procedures = 696, calls = 1922, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 1063 [2023-11-29 00:51:15,846 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:51:15,846 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:51:15,847 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:51:15,847 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:51:15,859 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:51:15" (1/1) ... [2023-11-29 00:51:15,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:51:15" (1/1) ... [2023-11-29 00:51:15,868 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:51:15" (1/1) ... [2023-11-29 00:51:15,990 INFO L175 MemorySlicer]: Split 386 memory accesses to 7 slices as follows [2, 84, 17, 15, 3, 262, 3]. 68 percent of accesses are in the largest equivalence class. The 252 initializations are split as follows [2, 0, 4, 0, 1, 242, 3]. The 30 writes are split as follows [0, 5, 3, 13, 1, 8, 0]. [2023-11-29 00:51:15,991 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:51:15" (1/1) ... [2023-11-29 00:51:15,991 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:51:15" (1/1) ... [2023-11-29 00:51:16,031 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:51:15" (1/1) ... [2023-11-29 00:51:16,039 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:51:15" (1/1) ... [2023-11-29 00:51:16,051 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:51:15" (1/1) ... [2023-11-29 00:51:16,060 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:51:15" (1/1) ... [2023-11-29 00:51:16,074 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:51:16,074 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:51:16,075 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:51:16,075 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:51:16,075 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:51:15" (1/1) ... [2023-11-29 00:51:16,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:51:16,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:51:16,104 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:51:16,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:51:16,140 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2023-11-29 00:51:16,141 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2023-11-29 00:51:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2023-11-29 00:51:16,141 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2023-11-29 00:51:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 00:51:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-29 00:51:16,141 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-29 00:51:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-29 00:51:16,141 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-29 00:51:16,141 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-29 00:51:16,141 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-29 00:51:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2023-11-29 00:51:16,142 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2023-11-29 00:51:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-29 00:51:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-29 00:51:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-29 00:51:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-29 00:51:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-29 00:51:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-29 00:51:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-29 00:51:16,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 00:51:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 00:51:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 00:51:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 00:51:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 00:51:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-29 00:51:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-29 00:51:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-29 00:51:16,143 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-29 00:51:16,143 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 00:51:16,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 00:51:16,144 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_node [2023-11-29 00:51:16,144 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_node [2023-11-29 00:51:16,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 00:51:16,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:51:16,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 00:51:16,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 00:51:16,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 00:51:16,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 00:51:16,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-29 00:51:16,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-29 00:51:16,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-29 00:51:16,145 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2023-11-29 00:51:16,145 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2023-11-29 00:51:16,145 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-29 00:51:16,145 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-29 00:51:16,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:51:16,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:51:16,145 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-29 00:51:16,145 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-29 00:51:16,145 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-29 00:51:16,145 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-29 00:51:16,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-29 00:51:16,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-29 00:51:16,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-29 00:51:16,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-29 00:51:16,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-29 00:51:16,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-29 00:51:16,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-29 00:51:16,146 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-11-29 00:51:16,146 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-11-29 00:51:16,146 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2023-11-29 00:51:16,146 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2023-11-29 00:51:16,147 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-29 00:51:16,147 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-29 00:51:16,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 00:51:16,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 00:51:16,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 00:51:16,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-29 00:51:16,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2023-11-29 00:51:16,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2023-11-29 00:51:16,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2023-11-29 00:51:16,147 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 00:51:16,148 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 00:51:16,173 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 00:51:16,174 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-29 00:51:16,174 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2023-11-29 00:51:16,174 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2023-11-29 00:51:16,174 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2023-11-29 00:51:16,174 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 00:51:16,174 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 00:51:16,174 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-29 00:51:16,174 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-29 00:51:16,174 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2023-11-29 00:51:16,174 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2023-11-29 00:51:16,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 00:51:16,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 00:51:16,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 00:51:16,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 00:51:16,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 00:51:16,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-29 00:51:16,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-29 00:51:16,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-29 00:51:16,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-29 00:51:16,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-29 00:51:16,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-29 00:51:16,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-29 00:51:16,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-29 00:51:16,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-29 00:51:16,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-29 00:51:16,176 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2023-11-29 00:51:16,176 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2023-11-29 00:51:16,176 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-29 00:51:16,176 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-29 00:51:16,176 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-29 00:51:16,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-29 00:51:16,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 00:51:16,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 00:51:16,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 00:51:16,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 00:51:16,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 00:51:16,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-29 00:51:16,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-29 00:51:16,177 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-29 00:51:16,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-29 00:51:16,177 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2023-11-29 00:51:16,177 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2023-11-29 00:51:16,177 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-29 00:51:16,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-29 00:51:16,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 00:51:16,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 00:51:16,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 00:51:16,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 00:51:16,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 00:51:16,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-29 00:51:16,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-29 00:51:16,178 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2023-11-29 00:51:16,178 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2023-11-29 00:51:16,506 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:51:16,509 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:51:18,030 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:51:18,129 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:51:18,130 INFO L309 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-29 00:51:18,130 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:51:18 BoogieIcfgContainer [2023-11-29 00:51:18,131 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:51:18,133 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:51:18,133 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:51:18,136 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:51:18,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:51:13" (1/3) ... [2023-11-29 00:51:18,137 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@699a31bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:51:18, skipping insertion in model container [2023-11-29 00:51:18,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:51:15" (2/3) ... [2023-11-29 00:51:18,137 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@699a31bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:51:18, skipping insertion in model container [2023-11-29 00:51:18,138 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:51:18" (3/3) ... [2023-11-29 00:51:18,139 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_remove_harness.i [2023-11-29 00:51:18,153 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:51:18,153 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 00:51:18,233 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:51:18,240 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;@22ee99d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:51:18,240 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 00:51:18,247 INFO L276 IsEmpty]: Start isEmpty. Operand has 423 states, 233 states have (on average 1.296137339055794) internal successors, (302), 238 states have internal predecessors, (302), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2023-11-29 00:51:18,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-29 00:51:18,268 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:51:18,269 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:51:18,269 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:51:18,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:51:18,275 INFO L85 PathProgramCache]: Analyzing trace with hash -197893834, now seen corresponding path program 1 times [2023-11-29 00:51:18,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:51:18,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422689108] [2023-11-29 00:51:18,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:51:18,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:51:18,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:19,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:51:19,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:19,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:51:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:19,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:51:19,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:19,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 00:51:19,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:19,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 00:51:19,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:19,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:51:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:19,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 00:51:19,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:19,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 00:51:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:19,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:51:19,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:19,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 00:51:19,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:19,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 00:51:19,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:19,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 00:51:19,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:19,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:51:19,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:19,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 00:51:19,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:19,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:51:19,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:19,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-29 00:51:19,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:19,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-29 00:51:19,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:19,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-29 00:51:19,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:19,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-29 00:51:19,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:19,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-29 00:51:19,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:19,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-29 00:51:19,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:19,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-29 00:51:19,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:19,658 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2023-11-29 00:51:19,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:51:19,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422689108] [2023-11-29 00:51:19,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422689108] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:51:19,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568655980] [2023-11-29 00:51:19,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:51:19,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:51:19,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:51:19,661 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:51:19,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 00:51:20,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:20,415 INFO L262 TraceCheckSpWp]: Trace formula consists of 2400 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 00:51:20,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:51:20,452 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-29 00:51:20,452 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:51:20,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568655980] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:51:20,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:51:20,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-11-29 00:51:20,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662239658] [2023-11-29 00:51:20,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:51:20,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 00:51:20,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:51:20,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 00:51:20,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:51:20,494 INFO L87 Difference]: Start difference. First operand has 423 states, 233 states have (on average 1.296137339055794) internal successors, (302), 238 states have internal predecessors, (302), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-29 00:51:20,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:51:20,688 INFO L93 Difference]: Finished difference Result 837 states and 1362 transitions. [2023-11-29 00:51:20,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 00:51:20,690 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 128 [2023-11-29 00:51:20,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:51:20,705 INFO L225 Difference]: With dead ends: 837 [2023-11-29 00:51:20,705 INFO L226 Difference]: Without dead ends: 420 [2023-11-29 00:51:20,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:51:20,719 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:51:20,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 585 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:51:20,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2023-11-29 00:51:20,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 420. [2023-11-29 00:51:20,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 232 states have (on average 1.25) internal successors, (290), 235 states have internal predecessors, (290), 160 states have call successors, (160), 27 states have call predecessors, (160), 26 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2023-11-29 00:51:20,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 608 transitions. [2023-11-29 00:51:20,808 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 608 transitions. Word has length 128 [2023-11-29 00:51:20,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:51:20,810 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 608 transitions. [2023-11-29 00:51:20,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-29 00:51:20,810 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 608 transitions. [2023-11-29 00:51:20,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-29 00:51:20,815 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:51:20,815 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:51:20,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 00:51:21,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 00:51:21,017 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:51:21,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:51:21,017 INFO L85 PathProgramCache]: Analyzing trace with hash 820803550, now seen corresponding path program 1 times [2023-11-29 00:51:21,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:51:21,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44414946] [2023-11-29 00:51:21,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:51:21,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:51:21,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:21,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:51:21,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:21,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:51:21,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:21,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:51:21,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:21,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 00:51:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:21,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 00:51:21,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:21,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:51:21,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:21,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 00:51:21,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:21,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 00:51:21,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:21,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:51:21,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:21,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 00:51:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:21,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 00:51:21,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:21,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 00:51:21,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:21,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:51:21,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:21,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 00:51:21,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:21,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:51:21,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:21,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-29 00:51:21,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:21,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-29 00:51:21,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:21,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-29 00:51:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:21,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-29 00:51:21,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:21,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-29 00:51:21,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:21,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-29 00:51:21,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:21,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-29 00:51:21,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:21,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-29 00:51:21,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:21,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-29 00:51:21,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:21,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-29 00:51:21,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:21,890 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2023-11-29 00:51:21,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:51:21,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44414946] [2023-11-29 00:51:21,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44414946] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:51:21,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181208530] [2023-11-29 00:51:21,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:51:21,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:51:21,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:51:21,892 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:51:21,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 00:51:22,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:22,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 2480 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:51:22,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:51:22,661 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 00:51:22,661 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:51:22,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181208530] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:51:22,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:51:22,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-11-29 00:51:22,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95628849] [2023-11-29 00:51:22,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:51:22,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:51:22,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:51:22,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:51:22,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:51:22,665 INFO L87 Difference]: Start difference. First operand 420 states and 608 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-11-29 00:51:24,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:51:24,249 INFO L93 Difference]: Finished difference Result 811 states and 1190 transitions. [2023-11-29 00:51:24,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:51:24,250 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 145 [2023-11-29 00:51:24,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:51:24,257 INFO L225 Difference]: With dead ends: 811 [2023-11-29 00:51:24,257 INFO L226 Difference]: Without dead ends: 422 [2023-11-29 00:51:24,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 188 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 00:51:24,262 INFO L413 NwaCegarLoop]: 554 mSDtfsCounter, 66 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 2104 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:51:24,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 2104 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 00:51:24,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2023-11-29 00:51:24,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 422. [2023-11-29 00:51:24,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 233 states have (on average 1.2489270386266094) internal successors, (291), 237 states have internal predecessors, (291), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (171), 158 states have call predecessors, (171), 158 states have call successors, (171) [2023-11-29 00:51:24,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 622 transitions. [2023-11-29 00:51:24,308 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 622 transitions. Word has length 145 [2023-11-29 00:51:24,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:51:24,309 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 622 transitions. [2023-11-29 00:51:24,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-11-29 00:51:24,309 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 622 transitions. [2023-11-29 00:51:24,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 00:51:24,312 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:51:24,312 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:51:24,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 00:51:24,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-29 00:51:24,513 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:51:24,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:51:24,514 INFO L85 PathProgramCache]: Analyzing trace with hash -277053180, now seen corresponding path program 1 times [2023-11-29 00:51:24,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:51:24,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254195586] [2023-11-29 00:51:24,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:51:24,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:51:24,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:25,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:51:25,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:25,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 00:51:25,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:25,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:51:25,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:25,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 00:51:25,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:25,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 00:51:25,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:25,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:51:25,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:25,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 00:51:25,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:25,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 00:51:25,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:25,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 00:51:25,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:25,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 00:51:25,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:25,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 00:51:25,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:25,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-29 00:51:25,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:25,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-29 00:51:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:25,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:51:25,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:25,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 00:51:25,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:25,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:51:25,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:25,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-29 00:51:25,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:25,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-29 00:51:25,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:25,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-29 00:51:25,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:25,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-29 00:51:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:25,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-29 00:51:25,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:25,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-29 00:51:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:25,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-29 00:51:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:25,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-29 00:51:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:25,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-29 00:51:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:25,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-29 00:51:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:25,484 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2023-11-29 00:51:25,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:51:25,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254195586] [2023-11-29 00:51:25,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254195586] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:51:25,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846989909] [2023-11-29 00:51:25,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:51:25,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:51:25,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:51:25,486 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:51:25,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 00:51:26,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:26,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 2530 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 00:51:26,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:51:26,236 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 00:51:26,237 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:51:26,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846989909] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:51:26,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:51:26,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2023-11-29 00:51:26,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018429450] [2023-11-29 00:51:26,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:51:26,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 00:51:26,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:51:26,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 00:51:26,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2023-11-29 00:51:26,240 INFO L87 Difference]: Start difference. First operand 422 states and 622 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2023-11-29 00:51:29,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:51:29,023 INFO L93 Difference]: Finished difference Result 834 states and 1261 transitions. [2023-11-29 00:51:29,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:51:29,024 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 153 [2023-11-29 00:51:29,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:51:29,030 INFO L225 Difference]: With dead ends: 834 [2023-11-29 00:51:29,030 INFO L226 Difference]: Without dead ends: 443 [2023-11-29 00:51:29,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2023-11-29 00:51:29,034 INFO L413 NwaCegarLoop]: 531 mSDtfsCounter, 118 mSDsluCounter, 2505 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 3036 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:51:29,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 3036 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-29 00:51:29,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2023-11-29 00:51:29,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 441. [2023-11-29 00:51:29,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 249 states have (on average 1.2570281124497993) internal successors, (313), 253 states have internal predecessors, (313), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (190), 161 states have call predecessors, (190), 160 states have call successors, (190) [2023-11-29 00:51:29,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 665 transitions. [2023-11-29 00:51:29,066 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 665 transitions. Word has length 153 [2023-11-29 00:51:29,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:51:29,067 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 665 transitions. [2023-11-29 00:51:29,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2023-11-29 00:51:29,067 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 665 transitions. [2023-11-29 00:51:29,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-29 00:51:29,069 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:51:29,069 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:51:29,078 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 00:51:29,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-29 00:51:29,270 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:51:29,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:51:29,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1619054241, now seen corresponding path program 1 times [2023-11-29 00:51:29,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:51:29,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940864045] [2023-11-29 00:51:29,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:51:29,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:51:29,361 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:51:29,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1506800456] [2023-11-29 00:51:29,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:51:29,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:51:29,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:51:29,363 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:51:29,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 00:51:30,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:30,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 2669 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 00:51:30,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:51:30,136 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 00:51:30,136 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:51:30,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:51:30,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940864045] [2023-11-29 00:51:30,137 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:51:30,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506800456] [2023-11-29 00:51:30,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506800456] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:51:30,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:51:30,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 00:51:30,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641048576] [2023-11-29 00:51:30,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:51:30,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:51:30,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:51:30,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:51:30,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:51:30,140 INFO L87 Difference]: Start difference. First operand 441 states and 665 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2023-11-29 00:51:32,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:51:32,393 INFO L93 Difference]: Finished difference Result 857 states and 1320 transitions. [2023-11-29 00:51:32,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:51:32,393 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 166 [2023-11-29 00:51:32,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:51:32,397 INFO L225 Difference]: With dead ends: 857 [2023-11-29 00:51:32,398 INFO L226 Difference]: Without dead ends: 447 [2023-11-29 00:51:32,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 161 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 00:51:32,402 INFO L413 NwaCegarLoop]: 547 mSDtfsCounter, 85 mSDsluCounter, 2051 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 2598 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:51:32,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 2598 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 00:51:32,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2023-11-29 00:51:32,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 441. [2023-11-29 00:51:32,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 249 states have (on average 1.2570281124497993) internal successors, (313), 253 states have internal predecessors, (313), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (190), 161 states have call predecessors, (190), 160 states have call successors, (190) [2023-11-29 00:51:32,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 665 transitions. [2023-11-29 00:51:32,462 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 665 transitions. Word has length 166 [2023-11-29 00:51:32,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:51:32,463 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 665 transitions. [2023-11-29 00:51:32,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2023-11-29 00:51:32,464 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 665 transitions. [2023-11-29 00:51:32,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-11-29 00:51:32,467 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:51:32,467 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:51:32,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 00:51:32,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:51:32,670 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:51:32,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:51:32,670 INFO L85 PathProgramCache]: Analyzing trace with hash 330338062, now seen corresponding path program 1 times [2023-11-29 00:51:32,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:51:32,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062182227] [2023-11-29 00:51:32,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:51:32,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:51:32,792 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:51:32,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1977123870] [2023-11-29 00:51:32,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:51:32,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:51:32,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:51:32,794 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:51:32,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 00:51:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:33,471 INFO L262 TraceCheckSpWp]: Trace formula consists of 2736 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 00:51:33,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:51:33,572 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-29 00:51:33,572 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:51:33,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:51:33,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062182227] [2023-11-29 00:51:33,573 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:51:33,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977123870] [2023-11-29 00:51:33,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1977123870] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:51:33,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:51:33,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 00:51:33,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478869317] [2023-11-29 00:51:33,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:51:33,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:51:33,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:51:33,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:51:33,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:51:33,576 INFO L87 Difference]: Start difference. First operand 441 states and 665 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2023-11-29 00:51:36,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:51:36,360 INFO L93 Difference]: Finished difference Result 867 states and 1324 transitions. [2023-11-29 00:51:36,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 00:51:36,360 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 182 [2023-11-29 00:51:36,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:51:36,365 INFO L225 Difference]: With dead ends: 867 [2023-11-29 00:51:36,366 INFO L226 Difference]: Without dead ends: 457 [2023-11-29 00:51:36,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 176 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 00:51:36,370 INFO L413 NwaCegarLoop]: 524 mSDtfsCounter, 145 mSDsluCounter, 2971 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 3495 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:51:36,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 3495 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-29 00:51:36,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2023-11-29 00:51:36,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 441. [2023-11-29 00:51:36,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 249 states have (on average 1.2570281124497993) internal successors, (313), 253 states have internal predecessors, (313), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (190), 161 states have call predecessors, (190), 160 states have call successors, (190) [2023-11-29 00:51:36,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 665 transitions. [2023-11-29 00:51:36,402 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 665 transitions. Word has length 182 [2023-11-29 00:51:36,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:51:36,403 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 665 transitions. [2023-11-29 00:51:36,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2023-11-29 00:51:36,404 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 665 transitions. [2023-11-29 00:51:36,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-11-29 00:51:36,406 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:51:36,407 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:51:36,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 00:51:36,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:51:36,608 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:51:36,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:51:36,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1224438177, now seen corresponding path program 2 times [2023-11-29 00:51:36,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:51:36,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44872171] [2023-11-29 00:51:36,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:51:36,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:51:36,739 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:51:36,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [912848585] [2023-11-29 00:51:36,740 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:51:36,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:51:36,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:51:36,742 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:51:36,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 00:51:37,729 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:51:37,729 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:51:37,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 2875 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 00:51:37,753 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:51:37,857 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2023-11-29 00:51:37,857 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:51:37,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:51:37,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44872171] [2023-11-29 00:51:37,858 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:51:37,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912848585] [2023-11-29 00:51:37,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912848585] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:51:37,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:51:37,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 00:51:37,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822151576] [2023-11-29 00:51:37,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:51:37,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:51:37,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:51:37,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:51:37,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:51:37,860 INFO L87 Difference]: Start difference. First operand 441 states and 665 transitions. Second operand has 6 states, 5 states have (on average 15.4) internal successors, (77), 6 states have internal predecessors, (77), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-29 00:51:39,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:51:39,953 INFO L93 Difference]: Finished difference Result 819 states and 1254 transitions. [2023-11-29 00:51:39,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:51:39,954 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.4) internal successors, (77), 6 states have internal predecessors, (77), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 195 [2023-11-29 00:51:39,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:51:39,959 INFO L225 Difference]: With dead ends: 819 [2023-11-29 00:51:39,959 INFO L226 Difference]: Without dead ends: 443 [2023-11-29 00:51:39,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 191 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 00:51:39,963 INFO L413 NwaCegarLoop]: 552 mSDtfsCounter, 76 mSDsluCounter, 2074 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 2626 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:51:39,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 2626 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 00:51:39,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2023-11-29 00:51:39,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2023-11-29 00:51:39,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 250 states have (on average 1.256) internal successors, (314), 255 states have internal predecessors, (314), 162 states have call successors, (162), 27 states have call predecessors, (162), 29 states have return successors, (201), 161 states have call predecessors, (201), 160 states have call successors, (201) [2023-11-29 00:51:39,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 677 transitions. [2023-11-29 00:51:39,994 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 677 transitions. Word has length 195 [2023-11-29 00:51:39,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:51:39,995 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 677 transitions. [2023-11-29 00:51:39,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.4) internal successors, (77), 6 states have internal predecessors, (77), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-29 00:51:39,995 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 677 transitions. [2023-11-29 00:51:39,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-11-29 00:51:39,998 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:51:39,999 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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 00:51:40,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 00:51:40,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:51:40,199 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:51:40,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:51:40,200 INFO L85 PathProgramCache]: Analyzing trace with hash -216556338, now seen corresponding path program 1 times [2023-11-29 00:51:40,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:51:40,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949649511] [2023-11-29 00:51:40,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:51:40,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:51:40,352 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:51:40,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1044256620] [2023-11-29 00:51:40,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:51:40,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:51:40,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:51:40,354 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:51:40,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 00:51:41,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:41,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 3064 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 00:51:41,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:51:41,165 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2023-11-29 00:51:41,166 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:51:41,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:51:41,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949649511] [2023-11-29 00:51:41,166 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:51:41,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044256620] [2023-11-29 00:51:41,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044256620] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:51:41,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:51:41,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 00:51:41,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130709435] [2023-11-29 00:51:41,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:51:41,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 00:51:41,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:51:41,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 00:51:41,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 00:51:41,169 INFO L87 Difference]: Start difference. First operand 443 states and 677 transitions. Second operand has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2023-11-29 00:51:44,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:51:44,095 INFO L93 Difference]: Finished difference Result 824 states and 1279 transitions. [2023-11-29 00:51:44,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 00:51:44,096 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) Word has length 216 [2023-11-29 00:51:44,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:51:44,100 INFO L225 Difference]: With dead ends: 824 [2023-11-29 00:51:44,100 INFO L226 Difference]: Without dead ends: 446 [2023-11-29 00:51:44,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 212 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 00:51:44,102 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 95 mSDsluCounter, 2566 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-29 00:51:44,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 3111 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-29 00:51:44,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2023-11-29 00:51:44,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 444. [2023-11-29 00:51:44,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 251 states have (on average 1.254980079681275) internal successors, (315), 256 states have internal predecessors, (315), 162 states have call successors, (162), 27 states have call predecessors, (162), 29 states have return successors, (201), 161 states have call predecessors, (201), 160 states have call successors, (201) [2023-11-29 00:51:44,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 678 transitions. [2023-11-29 00:51:44,134 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 678 transitions. Word has length 216 [2023-11-29 00:51:44,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:51:44,135 INFO L495 AbstractCegarLoop]: Abstraction has 444 states and 678 transitions. [2023-11-29 00:51:44,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.333333333333334) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2023-11-29 00:51:44,135 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 678 transitions. [2023-11-29 00:51:44,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-11-29 00:51:44,138 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:51:44,139 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:51:44,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 00:51:44,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:51:44,339 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:51:44,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:51:44,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1189919630, now seen corresponding path program 1 times [2023-11-29 00:51:44,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:51:44,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147199506] [2023-11-29 00:51:44,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:51:44,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:51:44,432 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:51:44,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1030470243] [2023-11-29 00:51:44,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:51:44,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:51:44,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:51:44,434 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:51:44,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 00:51:45,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:45,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 2992 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 00:51:45,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:51:45,358 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 177 proven. 3 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-29 00:51:45,358 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:51:45,673 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2023-11-29 00:51:45,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:51:45,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147199506] [2023-11-29 00:51:45,673 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:51:45,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030470243] [2023-11-29 00:51:45,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030470243] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:51:45,674 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:51:45,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2023-11-29 00:51:45,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809938390] [2023-11-29 00:51:45,674 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:51:45,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:51:45,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:51:45,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:51:45,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:51:45,676 INFO L87 Difference]: Start difference. First operand 444 states and 678 transitions. Second operand has 12 states, 10 states have (on average 11.2) internal successors, (112), 12 states have internal predecessors, (112), 9 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (48), 5 states have call predecessors, (48), 9 states have call successors, (48) [2023-11-29 00:51:48,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:51:48,328 INFO L93 Difference]: Finished difference Result 842 states and 1313 transitions. [2023-11-29 00:51:48,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 00:51:48,329 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 11.2) internal successors, (112), 12 states have internal predecessors, (112), 9 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (48), 5 states have call predecessors, (48), 9 states have call successors, (48) Word has length 219 [2023-11-29 00:51:48,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:51:48,335 INFO L225 Difference]: With dead ends: 842 [2023-11-29 00:51:48,335 INFO L226 Difference]: Without dead ends: 463 [2023-11-29 00:51:48,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 425 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2023-11-29 00:51:48,338 INFO L413 NwaCegarLoop]: 529 mSDtfsCounter, 129 mSDsluCounter, 3480 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 4009 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:51:48,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 4009 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-29 00:51:48,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2023-11-29 00:51:48,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 457. [2023-11-29 00:51:48,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 263 states have (on average 1.2623574144486691) internal successors, (332), 267 states have internal predecessors, (332), 163 states have call successors, (163), 27 states have call predecessors, (163), 29 states have return successors, (202), 163 states have call predecessors, (202), 161 states have call successors, (202) [2023-11-29 00:51:48,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 697 transitions. [2023-11-29 00:51:48,371 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 697 transitions. Word has length 219 [2023-11-29 00:51:48,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:51:48,371 INFO L495 AbstractCegarLoop]: Abstraction has 457 states and 697 transitions. [2023-11-29 00:51:48,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 11.2) internal successors, (112), 12 states have internal predecessors, (112), 9 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (48), 5 states have call predecessors, (48), 9 states have call successors, (48) [2023-11-29 00:51:48,372 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 697 transitions. [2023-11-29 00:51:48,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2023-11-29 00:51:48,376 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:51:48,376 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2023-11-29 00:51:48,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-29 00:51:48,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:51:48,578 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:51:48,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:51:48,578 INFO L85 PathProgramCache]: Analyzing trace with hash -637883424, now seen corresponding path program 2 times [2023-11-29 00:51:48,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:51:48,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173342631] [2023-11-29 00:51:48,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:51:48,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:51:48,727 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:51:48,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1051214050] [2023-11-29 00:51:48,727 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:51:48,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:51:48,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:51:48,729 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:51:48,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 00:51:49,487 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:51:49,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:51:49,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 3270 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 00:51:49,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:51:49,599 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2023-11-29 00:51:49,599 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:51:49,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:51:49,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173342631] [2023-11-29 00:51:49,599 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:51:49,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051214050] [2023-11-29 00:51:49,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051214050] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:51:49,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:51:49,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 00:51:49,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494394954] [2023-11-29 00:51:49,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:51:49,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:51:49,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:51:49,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:51:49,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:51:49,602 INFO L87 Difference]: Start difference. First operand 457 states and 697 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 7 states have internal predecessors, (72), 5 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-29 00:51:52,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:51:52,550 INFO L93 Difference]: Finished difference Result 852 states and 1310 transitions. [2023-11-29 00:51:52,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 00:51:52,551 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 7 states have internal predecessors, (72), 5 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) Word has length 245 [2023-11-29 00:51:52,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:51:52,556 INFO L225 Difference]: With dead ends: 852 [2023-11-29 00:51:52,556 INFO L226 Difference]: Without dead ends: 468 [2023-11-29 00:51:52,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 238 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 00:51:52,560 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 69 mSDsluCounter, 3132 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 3675 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-29 00:51:52,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 3675 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-29 00:51:52,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2023-11-29 00:51:52,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 468. [2023-11-29 00:51:52,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 268 states have (on average 1.2611940298507462) internal successors, (338), 272 states have internal predecessors, (338), 168 states have call successors, (168), 28 states have call predecessors, (168), 30 states have return successors, (207), 168 states have call predecessors, (207), 166 states have call successors, (207) [2023-11-29 00:51:52,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 713 transitions. [2023-11-29 00:51:52,592 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 713 transitions. Word has length 245 [2023-11-29 00:51:52,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:51:52,593 INFO L495 AbstractCegarLoop]: Abstraction has 468 states and 713 transitions. [2023-11-29 00:51:52,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 7 states have internal predecessors, (72), 5 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-29 00:51:52,593 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 713 transitions. [2023-11-29 00:51:52,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2023-11-29 00:51:52,595 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:51:52,595 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:51:52,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 00:51:52,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:51:52,796 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:51:52,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:51:52,796 INFO L85 PathProgramCache]: Analyzing trace with hash 706584028, now seen corresponding path program 1 times [2023-11-29 00:51:52,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:51:52,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200142308] [2023-11-29 00:51:52,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:51:52,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:51:52,936 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:51:52,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [895917956] [2023-11-29 00:51:52,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:51:52,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:51:52,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:51:52,937 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:51:52,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 00:51:53,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:53,718 INFO L262 TraceCheckSpWp]: Trace formula consists of 3548 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 00:51:53,724 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:51:53,820 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2023-11-29 00:51:53,821 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:51:53,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:51:53,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200142308] [2023-11-29 00:51:53,821 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:51:53,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895917956] [2023-11-29 00:51:53,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [895917956] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:51:53,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:51:53,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 00:51:53,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037925813] [2023-11-29 00:51:53,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:51:53,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:51:53,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:51:53,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:51:53,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:51:53,823 INFO L87 Difference]: Start difference. First operand 468 states and 713 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 4 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-29 00:51:54,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:51:54,593 INFO L93 Difference]: Finished difference Result 905 states and 1390 transitions. [2023-11-29 00:51:54,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:51:54,594 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 4 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 271 [2023-11-29 00:51:54,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:51:54,599 INFO L225 Difference]: With dead ends: 905 [2023-11-29 00:51:54,599 INFO L226 Difference]: Without dead ends: 505 [2023-11-29 00:51:54,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:51:54,602 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 41 mSDsluCounter, 2379 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 2990 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:51:54,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 2990 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 00:51:54,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2023-11-29 00:51:54,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 476. [2023-11-29 00:51:54,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 272 states have (on average 1.2573529411764706) internal successors, (342), 276 states have internal predecessors, (342), 172 states have call successors, (172), 28 states have call predecessors, (172), 30 states have return successors, (212), 172 states have call predecessors, (212), 170 states have call successors, (212) [2023-11-29 00:51:54,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 726 transitions. [2023-11-29 00:51:54,627 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 726 transitions. Word has length 271 [2023-11-29 00:51:54,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:51:54,627 INFO L495 AbstractCegarLoop]: Abstraction has 476 states and 726 transitions. [2023-11-29 00:51:54,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 4 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-29 00:51:54,628 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 726 transitions. [2023-11-29 00:51:54,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2023-11-29 00:51:54,629 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:51:54,629 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:51:54,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-29 00:51:54,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 00:51:54,830 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:51:54,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:51:54,830 INFO L85 PathProgramCache]: Analyzing trace with hash 641789497, now seen corresponding path program 1 times [2023-11-29 00:51:54,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:51:54,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715369835] [2023-11-29 00:51:54,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:51:54,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:51:54,953 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:51:54,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [541744402] [2023-11-29 00:51:54,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:51:54,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:51:54,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:51:54,954 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:51:54,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 00:51:55,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:55,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 3412 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 00:51:55,683 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:51:55,789 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-11-29 00:51:55,789 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:51:55,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:51:55,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715369835] [2023-11-29 00:51:55,790 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:51:55,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541744402] [2023-11-29 00:51:55,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541744402] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:51:55,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:51:55,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 00:51:55,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084555327] [2023-11-29 00:51:55,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:51:55,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 00:51:55,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:51:55,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 00:51:55,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:51:55,792 INFO L87 Difference]: Start difference. First operand 476 states and 726 transitions. Second operand has 9 states, 8 states have (on average 12.875) internal successors, (103), 9 states have internal predecessors, (103), 6 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 5 states have call predecessors, (30), 6 states have call successors, (30) [2023-11-29 00:51:59,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:51:59,541 INFO L93 Difference]: Finished difference Result 882 states and 1353 transitions. [2023-11-29 00:51:59,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 00:51:59,542 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.875) internal successors, (103), 9 states have internal predecessors, (103), 6 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 5 states have call predecessors, (30), 6 states have call successors, (30) Word has length 258 [2023-11-29 00:51:59,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:51:59,547 INFO L225 Difference]: With dead ends: 882 [2023-11-29 00:51:59,547 INFO L226 Difference]: Without dead ends: 476 [2023-11-29 00:51:59,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 254 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 00:51:59,551 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 155 mSDsluCounter, 3459 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 3981 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:51:59,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 3981 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-29 00:51:59,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2023-11-29 00:51:59,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 460. [2023-11-29 00:51:59,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 258 states have (on average 1.251937984496124) internal successors, (323), 262 states have internal predecessors, (323), 171 states have call successors, (171), 28 states have call predecessors, (171), 29 states have return successors, (197), 170 states have call predecessors, (197), 169 states have call successors, (197) [2023-11-29 00:51:59,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 691 transitions. [2023-11-29 00:51:59,582 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 691 transitions. Word has length 258 [2023-11-29 00:51:59,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:51:59,583 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 691 transitions. [2023-11-29 00:51:59,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.875) internal successors, (103), 9 states have internal predecessors, (103), 6 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 5 states have call predecessors, (30), 6 states have call successors, (30) [2023-11-29 00:51:59,583 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 691 transitions. [2023-11-29 00:51:59,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2023-11-29 00:51:59,585 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:51:59,585 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:51:59,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 00:51:59,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 00:51:59,786 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:51:59,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:51:59,786 INFO L85 PathProgramCache]: Analyzing trace with hash -247356130, now seen corresponding path program 1 times [2023-11-29 00:51:59,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:51:59,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446593647] [2023-11-29 00:51:59,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:51:59,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:51:59,937 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:51:59,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [390828593] [2023-11-29 00:51:59,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:51:59,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:51:59,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:51:59,939 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:51:59,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 00:52:00,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:52:00,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 3551 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 00:52:00,739 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:52:00,769 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2023-11-29 00:52:00,769 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:52:00,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:52:00,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446593647] [2023-11-29 00:52:00,770 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:52:00,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390828593] [2023-11-29 00:52:00,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390828593] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:52:00,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:52:00,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:52:00,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639407120] [2023-11-29 00:52:00,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:52:00,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:52:00,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:52:00,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:52:00,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:52:00,772 INFO L87 Difference]: Start difference. First operand 460 states and 691 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-11-29 00:52:00,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:52:00,951 INFO L93 Difference]: Finished difference Result 909 states and 1400 transitions. [2023-11-29 00:52:00,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:52:00,951 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 271 [2023-11-29 00:52:00,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:52:00,955 INFO L225 Difference]: With dead ends: 909 [2023-11-29 00:52:00,956 INFO L226 Difference]: Without dead ends: 480 [2023-11-29 00:52:00,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 267 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 00:52:00,960 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 7 mSDsluCounter, 1734 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2319 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:52:00,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2319 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:52:00,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-11-29 00:52:00,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 472. [2023-11-29 00:52:00,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 270 states have (on average 1.2555555555555555) internal successors, (339), 274 states have internal predecessors, (339), 171 states have call successors, (171), 28 states have call predecessors, (171), 29 states have return successors, (197), 170 states have call predecessors, (197), 169 states have call successors, (197) [2023-11-29 00:52:00,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 707 transitions. [2023-11-29 00:52:00,992 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 707 transitions. Word has length 271 [2023-11-29 00:52:00,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:52:00,992 INFO L495 AbstractCegarLoop]: Abstraction has 472 states and 707 transitions. [2023-11-29 00:52:00,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-11-29 00:52:00,993 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 707 transitions. [2023-11-29 00:52:00,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2023-11-29 00:52:00,995 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:52:00,995 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:01,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 00:52:01,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 00:52:01,196 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:52:01,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:52:01,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1307791718, now seen corresponding path program 1 times [2023-11-29 00:52:01,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:52:01,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258657665] [2023-11-29 00:52:01,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:52:01,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:52:01,364 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:52:01,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1516404907] [2023-11-29 00:52:01,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:52:01,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:52:01,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:52:01,365 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:52:01,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 00:52:02,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:52:02,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 3561 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 00:52:02,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:52:02,319 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 244 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2023-11-29 00:52:02,319 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:52:02,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:52:02,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258657665] [2023-11-29 00:52:02,319 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:52:02,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516404907] [2023-11-29 00:52:02,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516404907] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:52:02,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:52:02,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 00:52:02,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037127410] [2023-11-29 00:52:02,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:52:02,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:52:02,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:52:02,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:52:02,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:52:02,322 INFO L87 Difference]: Start difference. First operand 472 states and 707 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-11-29 00:52:04,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:52:04,369 INFO L93 Difference]: Finished difference Result 939 states and 1440 transitions. [2023-11-29 00:52:04,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:52:04,370 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 271 [2023-11-29 00:52:04,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:52:04,373 INFO L225 Difference]: With dead ends: 939 [2023-11-29 00:52:04,373 INFO L226 Difference]: Without dead ends: 498 [2023-11-29 00:52:04,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 266 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 00:52:04,376 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 18 mSDsluCounter, 2149 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 2736 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:52:04,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 2736 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 00:52:04,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2023-11-29 00:52:04,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 480. [2023-11-29 00:52:04,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 278 states have (on average 1.2553956834532374) internal successors, (349), 282 states have internal predecessors, (349), 171 states have call successors, (171), 28 states have call predecessors, (171), 29 states have return successors, (197), 170 states have call predecessors, (197), 169 states have call successors, (197) [2023-11-29 00:52:04,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 717 transitions. [2023-11-29 00:52:04,401 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 717 transitions. Word has length 271 [2023-11-29 00:52:04,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:52:04,401 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 717 transitions. [2023-11-29 00:52:04,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-11-29 00:52:04,402 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 717 transitions. [2023-11-29 00:52:04,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2023-11-29 00:52:04,404 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:52:04,405 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:04,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 00:52:04,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:52:04,614 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:52:04,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:52:04,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1616213534, now seen corresponding path program 1 times [2023-11-29 00:52:04,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:52:04,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704330959] [2023-11-29 00:52:04,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:52:04,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:52:04,754 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:52:04,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [216815204] [2023-11-29 00:52:04,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:52:04,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:52:04,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:52:04,757 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:52:04,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 00:52:05,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:52:05,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 3555 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:52:05,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:52:05,603 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2023-11-29 00:52:05,603 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:52:05,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:52:05,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704330959] [2023-11-29 00:52:05,603 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:52:05,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216815204] [2023-11-29 00:52:05,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [216815204] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:52:05,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:52:05,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:52:05,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235149611] [2023-11-29 00:52:05,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:52:05,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:52:05,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:52:05,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:52:05,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:52:05,606 INFO L87 Difference]: Start difference. First operand 480 states and 717 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-11-29 00:52:05,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:52:05,765 INFO L93 Difference]: Finished difference Result 945 states and 1444 transitions. [2023-11-29 00:52:05,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:52:05,765 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 271 [2023-11-29 00:52:05,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:52:05,770 INFO L225 Difference]: With dead ends: 945 [2023-11-29 00:52:05,770 INFO L226 Difference]: Without dead ends: 496 [2023-11-29 00:52:05,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 268 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 00:52:05,774 INFO L413 NwaCegarLoop]: 584 mSDtfsCounter, 2 mSDsluCounter, 1155 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:52:05,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1739 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:52:05,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2023-11-29 00:52:05,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 488. [2023-11-29 00:52:05,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 286 states have (on average 1.2482517482517483) internal successors, (357), 290 states have internal predecessors, (357), 171 states have call successors, (171), 28 states have call predecessors, (171), 29 states have return successors, (197), 170 states have call predecessors, (197), 169 states have call successors, (197) [2023-11-29 00:52:05,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 725 transitions. [2023-11-29 00:52:05,795 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 725 transitions. Word has length 271 [2023-11-29 00:52:05,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:52:05,795 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 725 transitions. [2023-11-29 00:52:05,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-11-29 00:52:05,796 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 725 transitions. [2023-11-29 00:52:05,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2023-11-29 00:52:05,797 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:52:05,798 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:05,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 00:52:05,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:52:05,998 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:52:05,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:52:05,998 INFO L85 PathProgramCache]: Analyzing trace with hash 577916578, now seen corresponding path program 1 times [2023-11-29 00:52:05,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:52:05,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562803328] [2023-11-29 00:52:05,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:52:05,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:52:06,123 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:52:06,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1949499911] [2023-11-29 00:52:06,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:52:06,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:52:06,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:52:06,125 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:52:06,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 00:52:06,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:52:07,005 INFO L262 TraceCheckSpWp]: Trace formula consists of 3545 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-29 00:52:07,012 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:52:07,058 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 00:52:07,283 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 302 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-11-29 00:52:07,283 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:52:07,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:52:07,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562803328] [2023-11-29 00:52:07,284 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:52:07,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949499911] [2023-11-29 00:52:07,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949499911] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:52:07,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:52:07,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-29 00:52:07,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902222884] [2023-11-29 00:52:07,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:52:07,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 00:52:07,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:52:07,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 00:52:07,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2023-11-29 00:52:07,286 INFO L87 Difference]: Start difference. First operand 488 states and 725 transitions. Second operand has 13 states, 12 states have (on average 9.0) internal successors, (108), 13 states have internal predecessors, (108), 8 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 7 states have call predecessors, (31), 8 states have call successors, (31) [2023-11-29 00:52:10,478 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 00:52:12,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:52:12,359 INFO L93 Difference]: Finished difference Result 988 states and 1515 transitions. [2023-11-29 00:52:12,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 00:52:12,359 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.0) internal successors, (108), 13 states have internal predecessors, (108), 8 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 7 states have call predecessors, (31), 8 states have call successors, (31) Word has length 271 [2023-11-29 00:52:12,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:52:12,364 INFO L225 Difference]: With dead ends: 988 [2023-11-29 00:52:12,364 INFO L226 Difference]: Without dead ends: 531 [2023-11-29 00:52:12,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:52:12,370 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 139 mSDsluCounter, 4951 mSDsCounter, 0 mSdLazyCounter, 1460 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 5488 SdHoareTripleChecker+Invalid, 1486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-11-29 00:52:12,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 5488 Invalid, 1486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1460 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-11-29 00:52:12,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2023-11-29 00:52:12,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 503. [2023-11-29 00:52:12,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 300 states have (on average 1.25) internal successors, (375), 303 states have internal predecessors, (375), 171 states have call successors, (171), 28 states have call predecessors, (171), 30 states have return successors, (216), 172 states have call predecessors, (216), 169 states have call successors, (216) [2023-11-29 00:52:12,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 762 transitions. [2023-11-29 00:52:12,407 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 762 transitions. Word has length 271 [2023-11-29 00:52:12,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:52:12,407 INFO L495 AbstractCegarLoop]: Abstraction has 503 states and 762 transitions. [2023-11-29 00:52:12,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.0) internal successors, (108), 13 states have internal predecessors, (108), 8 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 7 states have call predecessors, (31), 8 states have call successors, (31) [2023-11-29 00:52:12,408 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 762 transitions. [2023-11-29 00:52:12,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2023-11-29 00:52:12,411 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:52:12,411 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:12,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 00:52:12,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 00:52:12,612 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:52:12,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:52:12,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1179675806, now seen corresponding path program 1 times [2023-11-29 00:52:12,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:52:12,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842761888] [2023-11-29 00:52:12,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:52:12,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:52:12,710 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:52:12,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1333858383] [2023-11-29 00:52:12,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:52:12,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:52:12,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:52:12,712 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:52:12,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 00:52:13,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:52:13,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 3535 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:52:13,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:52:13,646 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 231 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2023-11-29 00:52:13,646 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:52:13,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:52:13,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842761888] [2023-11-29 00:52:13,647 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:52:13,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333858383] [2023-11-29 00:52:13,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333858383] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:52:13,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:52:13,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:52:13,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479791494] [2023-11-29 00:52:13,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:52:13,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:52:13,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:52:13,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:52:13,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:52:13,649 INFO L87 Difference]: Start difference. First operand 503 states and 762 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-11-29 00:52:13,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:52:13,784 INFO L93 Difference]: Finished difference Result 975 states and 1551 transitions. [2023-11-29 00:52:13,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:52:13,785 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 271 [2023-11-29 00:52:13,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:52:13,789 INFO L225 Difference]: With dead ends: 975 [2023-11-29 00:52:13,789 INFO L226 Difference]: Without dead ends: 503 [2023-11-29 00:52:13,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 269 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 00:52:13,795 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 7 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:52:13,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1744 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:52:13,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2023-11-29 00:52:13,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 503. [2023-11-29 00:52:13,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 300 states have (on average 1.2466666666666666) internal successors, (374), 303 states have internal predecessors, (374), 171 states have call successors, (171), 28 states have call predecessors, (171), 30 states have return successors, (216), 172 states have call predecessors, (216), 169 states have call successors, (216) [2023-11-29 00:52:13,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 761 transitions. [2023-11-29 00:52:13,827 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 761 transitions. Word has length 271 [2023-11-29 00:52:13,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:52:13,828 INFO L495 AbstractCegarLoop]: Abstraction has 503 states and 761 transitions. [2023-11-29 00:52:13,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-11-29 00:52:13,828 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 761 transitions. [2023-11-29 00:52:13,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2023-11-29 00:52:13,831 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:52:13,831 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:13,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 00:52:14,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 00:52:14,032 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:52:14,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:52:14,032 INFO L85 PathProgramCache]: Analyzing trace with hash 999488530, now seen corresponding path program 1 times [2023-11-29 00:52:14,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:52:14,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851559629] [2023-11-29 00:52:14,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:52:14,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:52:14,117 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:52:14,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [151800378] [2023-11-29 00:52:14,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:52:14,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:52:14,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:52:14,118 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:52:14,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 00:52:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:52:14,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 3545 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 00:52:15,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:52:15,054 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 233 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2023-11-29 00:52:15,054 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:52:15,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:52:15,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851559629] [2023-11-29 00:52:15,054 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:52:15,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151800378] [2023-11-29 00:52:15,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151800378] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:52:15,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:52:15,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:52:15,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230427864] [2023-11-29 00:52:15,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:52:15,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:52:15,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:52:15,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:52:15,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:52:15,057 INFO L87 Difference]: Start difference. First operand 503 states and 761 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-11-29 00:52:16,749 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 [0] [2023-11-29 00:52:18,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:52:18,234 INFO L93 Difference]: Finished difference Result 975 states and 1549 transitions. [2023-11-29 00:52:18,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:52:18,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 275 [2023-11-29 00:52:18,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:52:18,239 INFO L225 Difference]: With dead ends: 975 [2023-11-29 00:52:18,239 INFO L226 Difference]: Without dead ends: 503 [2023-11-29 00:52:18,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 272 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 00:52:18,243 INFO L413 NwaCegarLoop]: 600 mSDtfsCounter, 10 mSDsluCounter, 1615 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2215 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:52:18,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2215 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-29 00:52:18,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2023-11-29 00:52:18,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 503. [2023-11-29 00:52:18,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 300 states have (on average 1.2433333333333334) internal successors, (373), 303 states have internal predecessors, (373), 171 states have call successors, (171), 28 states have call predecessors, (171), 30 states have return successors, (216), 172 states have call predecessors, (216), 169 states have call successors, (216) [2023-11-29 00:52:18,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 760 transitions. [2023-11-29 00:52:18,266 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 760 transitions. Word has length 275 [2023-11-29 00:52:18,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:52:18,267 INFO L495 AbstractCegarLoop]: Abstraction has 503 states and 760 transitions. [2023-11-29 00:52:18,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-11-29 00:52:18,267 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 760 transitions. [2023-11-29 00:52:18,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2023-11-29 00:52:18,269 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:52:18,269 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:18,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 00:52:18,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 00:52:18,470 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:52:18,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:52:18,471 INFO L85 PathProgramCache]: Analyzing trace with hash 239261206, now seen corresponding path program 1 times [2023-11-29 00:52:18,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:52:18,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950589558] [2023-11-29 00:52:18,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:52:18,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:52:18,568 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:52:18,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1295038731] [2023-11-29 00:52:18,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:52:18,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:52:18,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:52:18,569 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:52:18,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 00:52:19,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:52:19,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 3555 conjuncts, 49 conjunts are in the unsatisfiable core [2023-11-29 00:52:19,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:52:19,602 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 234 proven. 1 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2023-11-29 00:52:19,602 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:52:20,085 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 50 proven. 6 refuted. 0 times theorem prover too weak. 461 trivial. 0 not checked. [2023-11-29 00:52:20,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:52:20,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950589558] [2023-11-29 00:52:20,086 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:52:20,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295038731] [2023-11-29 00:52:20,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1295038731] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:52:20,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:52:20,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 16 [2023-11-29 00:52:20,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820725657] [2023-11-29 00:52:20,087 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:52:20,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 00:52:20,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:52:20,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 00:52:20,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2023-11-29 00:52:20,089 INFO L87 Difference]: Start difference. First operand 503 states and 760 transitions. Second operand has 16 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 13 states have internal predecessors, (100), 6 states have call successors, (35), 3 states have call predecessors, (35), 5 states have return successors, (33), 6 states have call predecessors, (33), 5 states have call successors, (33) [2023-11-29 00:52:20,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:52:20,964 INFO L93 Difference]: Finished difference Result 984 states and 1492 transitions. [2023-11-29 00:52:20,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 00:52:20,965 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 13 states have internal predecessors, (100), 6 states have call successors, (35), 3 states have call predecessors, (35), 5 states have return successors, (33), 6 states have call predecessors, (33), 5 states have call successors, (33) Word has length 275 [2023-11-29 00:52:20,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:52:20,969 INFO L225 Difference]: With dead ends: 984 [2023-11-29 00:52:20,970 INFO L226 Difference]: Without dead ends: 509 [2023-11-29 00:52:20,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 534 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2023-11-29 00:52:20,974 INFO L413 NwaCegarLoop]: 552 mSDtfsCounter, 4 mSDsluCounter, 5974 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6526 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:52:20,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6526 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 00:52:20,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2023-11-29 00:52:21,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 505. [2023-11-29 00:52:21,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 301 states have (on average 1.2425249169435215) internal successors, (374), 305 states have internal predecessors, (374), 171 states have call successors, (171), 28 states have call predecessors, (171), 31 states have return successors, (219), 172 states have call predecessors, (219), 169 states have call successors, (219) [2023-11-29 00:52:21,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 764 transitions. [2023-11-29 00:52:21,036 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 764 transitions. Word has length 275 [2023-11-29 00:52:21,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:52:21,036 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 764 transitions. [2023-11-29 00:52:21,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 13 states have internal predecessors, (100), 6 states have call successors, (35), 3 states have call predecessors, (35), 5 states have return successors, (33), 6 states have call predecessors, (33), 5 states have call successors, (33) [2023-11-29 00:52:21,036 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 764 transitions. [2023-11-29 00:52:21,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-11-29 00:52:21,039 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:52:21,039 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:21,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 00:52:21,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 00:52:21,239 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:52:21,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:52:21,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1804243948, now seen corresponding path program 1 times [2023-11-29 00:52:21,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:52:21,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780153420] [2023-11-29 00:52:21,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:52:21,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:52:21,341 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:52:21,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2096151409] [2023-11-29 00:52:21,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:52:21,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:52:21,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:52:21,343 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:52:21,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 00:52:22,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:52:22,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 3589 conjuncts, 69 conjunts are in the unsatisfiable core [2023-11-29 00:52:22,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:52:22,434 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 00:52:22,438 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 00:52:23,446 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 00:52:23,447 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 42 treesize of output 38 [2023-11-29 00:52:23,457 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 00:52:23,458 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 34 treesize of output 30 [2023-11-29 00:52:23,500 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2023-11-29 00:52:23,500 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:52:23,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:52:23,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780153420] [2023-11-29 00:52:23,500 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:52:23,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096151409] [2023-11-29 00:52:23,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096151409] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:52:23,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:52:23,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 00:52:23,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003208812] [2023-11-29 00:52:23,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:52:23,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 00:52:23,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:52:23,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 00:52:23,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2023-11-29 00:52:23,503 INFO L87 Difference]: Start difference. First operand 505 states and 764 transitions. Second operand has 19 states, 17 states have (on average 6.823529411764706) internal successors, (116), 17 states have internal predecessors, (116), 8 states have call successors, (34), 3 states have call predecessors, (34), 6 states have return successors, (32), 10 states have call predecessors, (32), 8 states have call successors, (32) [2023-11-29 00:52:27,569 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 00:52:32,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:52:36,729 WARN L539 Checker$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 00:52:40,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:52:44,776 WARN L539 Checker$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 00:52:48,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:52:52,846 WARN L539 Checker$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 00:52:56,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:53:07,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:53:14,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:53:19,433 WARN L539 Checker$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 00:53:24,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:53:28,862 WARN L539 Checker$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 00:53:33,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-29 00:53:37,586 WARN L539 Checker$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 00:53:41,635 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 00:53:41,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:53:41,635 INFO L93 Difference]: Finished difference Result 1543 states and 2378 transitions. [2023-11-29 00:53:41,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-11-29 00:53:41,637 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 6.823529411764706) internal successors, (116), 17 states have internal predecessors, (116), 8 states have call successors, (34), 3 states have call predecessors, (34), 6 states have return successors, (32), 10 states have call predecessors, (32), 8 states have call successors, (32) Word has length 285 [2023-11-29 00:53:41,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:53:41,645 INFO L225 Difference]: With dead ends: 1543 [2023-11-29 00:53:41,646 INFO L226 Difference]: Without dead ends: 1061 [2023-11-29 00:53:41,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 263 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=286, Invalid=1520, Unknown=0, NotChecked=0, Total=1806 [2023-11-29 00:53:41,650 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 688 mSDsluCounter, 5926 mSDsCounter, 0 mSdLazyCounter, 5028 mSolverCounterSat, 56 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 76.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 737 SdHoareTripleChecker+Valid, 6525 SdHoareTripleChecker+Invalid, 5100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 5028 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 77.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:53:41,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [737 Valid, 6525 Invalid, 5100 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 5028 Invalid, 16 Unknown, 0 Unchecked, 77.2s Time] [2023-11-29 00:53:41,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2023-11-29 00:53:41,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 1017. [2023-11-29 00:53:41,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1017 states, 622 states have (on average 1.2459807073954985) internal successors, (775), 630 states have internal predecessors, (775), 333 states have call successors, (333), 52 states have call predecessors, (333), 60 states have return successors, (464), 336 states have call predecessors, (464), 330 states have call successors, (464) [2023-11-29 00:53:41,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1572 transitions. [2023-11-29 00:53:41,741 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1572 transitions. Word has length 285 [2023-11-29 00:53:41,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:53:41,742 INFO L495 AbstractCegarLoop]: Abstraction has 1017 states and 1572 transitions. [2023-11-29 00:53:41,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 6.823529411764706) internal successors, (116), 17 states have internal predecessors, (116), 8 states have call successors, (34), 3 states have call predecessors, (34), 6 states have return successors, (32), 10 states have call predecessors, (32), 8 states have call successors, (32) [2023-11-29 00:53:41,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1572 transitions. [2023-11-29 00:53:41,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2023-11-29 00:53:41,746 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:53:41,746 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:53:41,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 00:53:41,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:53:41,947 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:53:41,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:53:41,947 INFO L85 PathProgramCache]: Analyzing trace with hash -702073491, now seen corresponding path program 1 times [2023-11-29 00:53:41,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:53:41,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599142487] [2023-11-29 00:53:41,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:53:41,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:53:42,069 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:53:42,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [248792049] [2023-11-29 00:53:42,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:53:42,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:53:42,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:53:42,071 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:53:42,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 00:53:42,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:53:42,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 3614 conjuncts, 57 conjunts are in the unsatisfiable core [2023-11-29 00:53:42,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:53:43,002 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 00:53:44,931 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 402 proven. 10 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-29 00:53:44,932 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:53:45,641 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2023-11-29 00:53:45,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:53:45,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599142487] [2023-11-29 00:53:45,642 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:53:45,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248792049] [2023-11-29 00:53:45,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248792049] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:53:45,642 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:53:45,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 14] total 29 [2023-11-29 00:53:45,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54464225] [2023-11-29 00:53:45,643 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:53:45,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-29 00:53:45,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:53:45,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-29 00:53:45,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=702, Unknown=0, NotChecked=0, Total=812 [2023-11-29 00:53:45,645 INFO L87 Difference]: Start difference. First operand 1017 states and 1572 transitions. Second operand has 29 states, 27 states have (on average 6.7407407407407405) internal successors, (182), 29 states have internal predecessors, (182), 18 states have call successors, (64), 4 states have call predecessors, (64), 7 states have return successors, (62), 16 states have call predecessors, (62), 18 states have call successors, (62) [2023-11-29 00:53:50,201 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 00:53:54,747 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 00:54:20,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:54:20,092 INFO L93 Difference]: Finished difference Result 3082 states and 4956 transitions. [2023-11-29 00:54:20,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-29 00:54:20,093 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 6.7407407407407405) internal successors, (182), 29 states have internal predecessors, (182), 18 states have call successors, (64), 4 states have call predecessors, (64), 7 states have return successors, (62), 16 states have call predecessors, (62), 18 states have call successors, (62) Word has length 290 [2023-11-29 00:54:20,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:54:20,112 INFO L225 Difference]: With dead ends: 3082 [2023-11-29 00:54:20,112 INFO L226 Difference]: Without dead ends: 2625 [2023-11-29 00:54:20,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 617 GetRequests, 541 SyntacticMatches, 11 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1096 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=792, Invalid=3630, Unknown=0, NotChecked=0, Total=4422 [2023-11-29 00:54:20,118 INFO L413 NwaCegarLoop]: 1007 mSDtfsCounter, 1421 mSDsluCounter, 7904 mSDsCounter, 0 mSdLazyCounter, 10260 mSolverCounterSat, 164 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 8911 SdHoareTripleChecker+Invalid, 10426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 10260 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:54:20,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1474 Valid, 8911 Invalid, 10426 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [164 Valid, 10260 Invalid, 2 Unknown, 0 Unchecked, 31.4s Time] [2023-11-29 00:54:20,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2625 states. [2023-11-29 00:54:20,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2625 to 2498. [2023-11-29 00:54:20,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2498 states, 1559 states have (on average 1.2431045542014112) internal successors, (1938), 1581 states have internal predecessors, (1938), 793 states have call successors, (793), 118 states have call predecessors, (793), 144 states have return successors, (1241), 803 states have call predecessors, (1241), 786 states have call successors, (1241) [2023-11-29 00:54:20,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2498 states to 2498 states and 3972 transitions. [2023-11-29 00:54:20,329 INFO L78 Accepts]: Start accepts. Automaton has 2498 states and 3972 transitions. Word has length 290 [2023-11-29 00:54:20,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:54:20,329 INFO L495 AbstractCegarLoop]: Abstraction has 2498 states and 3972 transitions. [2023-11-29 00:54:20,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 6.7407407407407405) internal successors, (182), 29 states have internal predecessors, (182), 18 states have call successors, (64), 4 states have call predecessors, (64), 7 states have return successors, (62), 16 states have call predecessors, (62), 18 states have call successors, (62) [2023-11-29 00:54:20,330 INFO L276 IsEmpty]: Start isEmpty. Operand 2498 states and 3972 transitions. [2023-11-29 00:54:20,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2023-11-29 00:54:20,335 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:54:20,336 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:54:20,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 00:54:20,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:54:20,539 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:54:20,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:54:20,539 INFO L85 PathProgramCache]: Analyzing trace with hash -488456405, now seen corresponding path program 1 times [2023-11-29 00:54:20,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:54:20,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305260958] [2023-11-29 00:54:20,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:54:20,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:54:20,697 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:54:20,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2044930076] [2023-11-29 00:54:20,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:54:20,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:54:20,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:54:20,698 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:54:20,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 00:54:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:54:21,702 INFO L262 TraceCheckSpWp]: Trace formula consists of 3611 conjuncts, 63 conjunts are in the unsatisfiable core [2023-11-29 00:54:21,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:54:21,731 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 00:54:23,592 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 407 proven. 14 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2023-11-29 00:54:23,592 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:54:24,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:54:24,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305260958] [2023-11-29 00:54:24,063 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:54:24,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044930076] [2023-11-29 00:54:24,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044930076] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:54:24,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:54:24,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-11-29 00:54:24,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466013311] [2023-11-29 00:54:24,064 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:54:24,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 00:54:24,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:54:24,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 00:54:24,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=471, Unknown=0, NotChecked=0, Total=552 [2023-11-29 00:54:24,066 INFO L87 Difference]: Start difference. First operand 2498 states and 3972 transitions. Second operand has 18 states, 17 states have (on average 7.882352941176471) internal successors, (134), 18 states have internal predecessors, (134), 13 states have call successors, (38), 4 states have call predecessors, (38), 7 states have return successors, (36), 12 states have call predecessors, (36), 13 states have call successors, (36) [2023-11-29 00:54:50,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:54:50,676 INFO L93 Difference]: Finished difference Result 10087 states and 17215 transitions. [2023-11-29 00:54:50,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-29 00:54:50,677 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 7.882352941176471) internal successors, (134), 18 states have internal predecessors, (134), 13 states have call successors, (38), 4 states have call predecessors, (38), 7 states have return successors, (36), 12 states have call predecessors, (36), 13 states have call successors, (36) Word has length 290 [2023-11-29 00:54:50,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:54:50,734 INFO L225 Difference]: With dead ends: 10087 [2023-11-29 00:54:50,734 INFO L226 Difference]: Without dead ends: 7678 [2023-11-29 00:54:50,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 357 SyntacticMatches, 11 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=316, Invalid=1754, Unknown=0, NotChecked=0, Total=2070 [2023-11-29 00:54:50,757 INFO L413 NwaCegarLoop]: 979 mSDtfsCounter, 1155 mSDsluCounter, 7310 mSDsCounter, 0 mSdLazyCounter, 7923 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1218 SdHoareTripleChecker+Valid, 8289 SdHoareTripleChecker+Invalid, 8027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 7923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:54:50,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1218 Valid, 8289 Invalid, 8027 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [104 Valid, 7923 Invalid, 0 Unknown, 0 Unchecked, 25.1s Time] [2023-11-29 00:54:50,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7678 states. [2023-11-29 00:54:51,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7678 to 7493. [2023-11-29 00:54:51,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7493 states, 4713 states have (on average 1.2329726288987906) internal successors, (5811), 4795 states have internal predecessors, (5811), 2340 states have call successors, (2340), 336 states have call predecessors, (2340), 438 states have return successors, (4412), 2376 states have call predecessors, (4412), 2323 states have call successors, (4412) [2023-11-29 00:54:51,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7493 states to 7493 states and 12563 transitions. [2023-11-29 00:54:51,697 INFO L78 Accepts]: Start accepts. Automaton has 7493 states and 12563 transitions. Word has length 290 [2023-11-29 00:54:51,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:54:51,697 INFO L495 AbstractCegarLoop]: Abstraction has 7493 states and 12563 transitions. [2023-11-29 00:54:51,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 7.882352941176471) internal successors, (134), 18 states have internal predecessors, (134), 13 states have call successors, (38), 4 states have call predecessors, (38), 7 states have return successors, (36), 12 states have call predecessors, (36), 13 states have call successors, (36) [2023-11-29 00:54:51,698 INFO L276 IsEmpty]: Start isEmpty. Operand 7493 states and 12563 transitions. [2023-11-29 00:54:51,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2023-11-29 00:54:51,704 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:54:51,704 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:54:51,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-29 00:54:51,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:54:51,905 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:54:51,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:54:51,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1737623591, now seen corresponding path program 1 times [2023-11-29 00:54:51,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:54:51,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629210142] [2023-11-29 00:54:51,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:54:51,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:54:52,044 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:54:52,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1717908248] [2023-11-29 00:54:52,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:54:52,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:54:52,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:54:52,046 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:54:52,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 00:54:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:54:53,063 INFO L262 TraceCheckSpWp]: Trace formula consists of 3603 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-29 00:54:53,068 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:54:53,092 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 00:54:53,252 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 265 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2023-11-29 00:54:53,252 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:54:53,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:54:53,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629210142] [2023-11-29 00:54:53,252 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:54:53,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717908248] [2023-11-29 00:54:53,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717908248] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:54:53,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:54:53,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 00:54:53,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766729698] [2023-11-29 00:54:53,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:54:53,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 00:54:53,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:54:53,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 00:54:53,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:54:53,254 INFO L87 Difference]: Start difference. First operand 7493 states and 12563 transitions. Second operand has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 11 states have internal predecessors, (115), 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 00:54:57,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:54:57,569 INFO L93 Difference]: Finished difference Result 14622 states and 25327 transitions. [2023-11-29 00:54:57,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 00:54:57,570 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 11 states have internal predecessors, (115), 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 290 [2023-11-29 00:54:57,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:54:57,635 INFO L225 Difference]: With dead ends: 14622 [2023-11-29 00:54:57,636 INFO L226 Difference]: Without dead ends: 7799 [2023-11-29 00:54:57,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2023-11-29 00:54:57,673 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 118 mSDsluCounter, 3974 mSDsCounter, 0 mSdLazyCounter, 1119 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 4512 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:54:57,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 4512 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1119 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-29 00:54:57,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7799 states. [2023-11-29 00:54:58,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7799 to 7459. [2023-11-29 00:54:58,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7459 states, 4679 states have (on average 1.2299636674503098) internal successors, (5755), 4775 states have internal predecessors, (5755), 2340 states have call successors, (2340), 336 states have call predecessors, (2340), 438 states have return successors, (4412), 2362 states have call predecessors, (4412), 2323 states have call successors, (4412) [2023-11-29 00:54:58,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7459 states to 7459 states and 12507 transitions. [2023-11-29 00:54:58,466 INFO L78 Accepts]: Start accepts. Automaton has 7459 states and 12507 transitions. Word has length 290 [2023-11-29 00:54:58,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:54:58,466 INFO L495 AbstractCegarLoop]: Abstraction has 7459 states and 12507 transitions. [2023-11-29 00:54:58,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 11 states have internal predecessors, (115), 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 00:54:58,467 INFO L276 IsEmpty]: Start isEmpty. Operand 7459 states and 12507 transitions. [2023-11-29 00:54:58,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2023-11-29 00:54:58,475 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:54:58,475 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:54:58,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-29 00:54:58,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:54:58,676 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:54:58,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:54:58,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1046055119, now seen corresponding path program 1 times [2023-11-29 00:54:58,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:54:58,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869768420] [2023-11-29 00:54:58,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:54:58,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:54:58,828 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:54:58,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [79213168] [2023-11-29 00:54:58,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:54:58,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:54:58,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:54:58,830 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:54:58,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 00:54:59,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:54:59,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 3616 conjuncts, 95 conjunts are in the unsatisfiable core [2023-11-29 00:54:59,945 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:54:59,975 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 00:54:59,977 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 00:55:01,533 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 404 proven. 4 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-29 00:55:01,534 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:55:18,991 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 51 proven. 3 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2023-11-29 00:55:18,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:55:18,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869768420] [2023-11-29 00:55:18,992 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:55:18,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79213168] [2023-11-29 00:55:18,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79213168] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:55:18,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:55:18,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 19] total 41 [2023-11-29 00:55:18,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428706098] [2023-11-29 00:55:18,993 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:55:18,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-11-29 00:55:18,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:55:18,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-11-29 00:55:18,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1506, Unknown=4, NotChecked=0, Total=1640 [2023-11-29 00:55:18,995 INFO L87 Difference]: Start difference. First operand 7459 states and 12507 transitions. Second operand has 41 states, 34 states have (on average 5.411764705882353) internal successors, (184), 37 states have internal predecessors, (184), 16 states have call successors, (60), 3 states have call predecessors, (60), 10 states have return successors, (59), 17 states have call predecessors, (59), 16 states have call successors, (59) [2023-11-29 00:55:47,152 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 00:55:48,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:55:48,919 INFO L93 Difference]: Finished difference Result 13984 states and 23757 transitions. [2023-11-29 00:55:48,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-11-29 00:55:48,920 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 34 states have (on average 5.411764705882353) internal successors, (184), 37 states have internal predecessors, (184), 16 states have call successors, (60), 3 states have call predecessors, (60), 10 states have return successors, (59), 17 states have call predecessors, (59), 16 states have call successors, (59) Word has length 292 [2023-11-29 00:55:48,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:55:49,030 INFO L225 Difference]: With dead ends: 13984 [2023-11-29 00:55:49,030 INFO L226 Difference]: Without dead ends: 12181 [2023-11-29 00:55:49,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 615 GetRequests, 547 SyntacticMatches, 4 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 869 ImplicationChecksByTransitivity, 18.6s TimeCoverageRelationStatistics Valid=442, Invalid=3844, Unknown=4, NotChecked=0, Total=4290 [2023-11-29 00:55:49,044 INFO L413 NwaCegarLoop]: 552 mSDtfsCounter, 618 mSDsluCounter, 9374 mSDsCounter, 0 mSdLazyCounter, 8867 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 679 SdHoareTripleChecker+Valid, 9926 SdHoareTripleChecker+Invalid, 8932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 8867 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:55:49,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [679 Valid, 9926 Invalid, 8932 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [64 Valid, 8867 Invalid, 1 Unknown, 0 Unchecked, 27.8s Time] [2023-11-29 00:55:49,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12181 states. [2023-11-29 00:55:50,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12181 to 11662. [2023-11-29 00:55:50,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11662 states, 7288 states have (on average 1.2314763995609221) internal successors, (8975), 7442 states have internal predecessors, (8975), 3694 states have call successors, (3694), 521 states have call predecessors, (3694), 678 states have return successors, (6980), 3722 states have call predecessors, (6980), 3668 states have call successors, (6980) [2023-11-29 00:55:50,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11662 states to 11662 states and 19649 transitions. [2023-11-29 00:55:50,369 INFO L78 Accepts]: Start accepts. Automaton has 11662 states and 19649 transitions. Word has length 292 [2023-11-29 00:55:50,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:55:50,370 INFO L495 AbstractCegarLoop]: Abstraction has 11662 states and 19649 transitions. [2023-11-29 00:55:50,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 34 states have (on average 5.411764705882353) internal successors, (184), 37 states have internal predecessors, (184), 16 states have call successors, (60), 3 states have call predecessors, (60), 10 states have return successors, (59), 17 states have call predecessors, (59), 16 states have call successors, (59) [2023-11-29 00:55:50,370 INFO L276 IsEmpty]: Start isEmpty. Operand 11662 states and 19649 transitions. [2023-11-29 00:55:50,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2023-11-29 00:55:50,381 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:55:50,381 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:55:50,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 00:55:50,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:55:50,581 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:55:50,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:55:50,582 INFO L85 PathProgramCache]: Analyzing trace with hash 61777538, now seen corresponding path program 1 times [2023-11-29 00:55:50,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:55:50,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778435399] [2023-11-29 00:55:50,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:55:50,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:55:50,693 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:55:50,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [644587386] [2023-11-29 00:55:50,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:55:50,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:55:50,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:55:50,694 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:55:50,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 00:55:51,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:55:51,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 3623 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 00:55:51,790 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:55:51,895 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 264 proven. 2 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2023-11-29 00:55:51,895 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:55:52,117 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 559 trivial. 0 not checked. [2023-11-29 00:55:52,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:55:52,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778435399] [2023-11-29 00:55:52,117 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:55:52,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644587386] [2023-11-29 00:55:52,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644587386] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:55:52,118 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:55:52,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2023-11-29 00:55:52,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957115711] [2023-11-29 00:55:52,118 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:55:52,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:55:52,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:55:52,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:55:52,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:55:52,121 INFO L87 Difference]: Start difference. First operand 11662 states and 19649 transitions. Second operand has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 4 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (37), 5 states have call predecessors, (37), 4 states have call successors, (37) [2023-11-29 00:55:56,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:55:56,374 INFO L93 Difference]: Finished difference Result 24084 states and 40862 transitions. [2023-11-29 00:55:56,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 00:55:56,375 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 4 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (37), 5 states have call predecessors, (37), 4 states have call successors, (37) Word has length 294 [2023-11-29 00:55:56,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:55:56,463 INFO L225 Difference]: With dead ends: 24084 [2023-11-29 00:55:56,463 INFO L226 Difference]: Without dead ends: 12775 [2023-11-29 00:55:56,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 588 GetRequests, 580 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-29 00:55:56,532 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 48 mSDsluCounter, 3492 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 4075 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:55:56,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 4075 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-29 00:55:56,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12775 states. [2023-11-29 00:55:57,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12775 to 11870. [2023-11-29 00:55:57,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11870 states, 7424 states have (on average 1.2293911637931034) internal successors, (9127), 7558 states have internal predecessors, (9127), 3766 states have call successors, (3766), 521 states have call predecessors, (3766), 678 states have return successors, (7082), 3814 states have call predecessors, (7082), 3740 states have call successors, (7082) [2023-11-29 00:55:57,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11870 states to 11870 states and 19975 transitions. [2023-11-29 00:55:57,963 INFO L78 Accepts]: Start accepts. Automaton has 11870 states and 19975 transitions. Word has length 294 [2023-11-29 00:55:57,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:55:57,964 INFO L495 AbstractCegarLoop]: Abstraction has 11870 states and 19975 transitions. [2023-11-29 00:55:57,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 4 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (37), 5 states have call predecessors, (37), 4 states have call successors, (37) [2023-11-29 00:55:57,964 INFO L276 IsEmpty]: Start isEmpty. Operand 11870 states and 19975 transitions. [2023-11-29 00:55:57,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2023-11-29 00:55:57,980 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:55:57,981 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:55:57,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 00:55:58,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 00:55:58,181 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:55:58,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:55:58,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1354005246, now seen corresponding path program 1 times [2023-11-29 00:55:58,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:55:58,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865917298] [2023-11-29 00:55:58,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:55:58,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:55:58,307 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:55:58,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [398089423] [2023-11-29 00:55:58,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:55:58,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:55:58,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:55:58,308 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:55:58,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 00:55:59,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:55:59,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 3617 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 00:55:59,373 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:55:59,397 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 317 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2023-11-29 00:55:59,398 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:55:59,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:55:59,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865917298] [2023-11-29 00:55:59,398 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:55:59,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398089423] [2023-11-29 00:55:59,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398089423] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:55:59,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:55:59,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:55:59,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077190324] [2023-11-29 00:55:59,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:55:59,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:55:59,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:55:59,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:55:59,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:55:59,400 INFO L87 Difference]: Start difference. First operand 11870 states and 19975 transitions. Second operand has 5 states, 4 states have (on average 30.5) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (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 00:56:01,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:56:01,103 INFO L93 Difference]: Finished difference Result 23063 states and 38897 transitions. [2023-11-29 00:56:01,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:56:01,104 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 30.5) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (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 294 [2023-11-29 00:56:01,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:56:01,170 INFO L225 Difference]: With dead ends: 23063 [2023-11-29 00:56:01,170 INFO L226 Difference]: Without dead ends: 11540 [2023-11-29 00:56:01,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 290 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 00:56:01,224 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 2 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2092 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:56:01,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2092 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 00:56:01,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11540 states. [2023-11-29 00:56:02,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11540 to 11540. [2023-11-29 00:56:02,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11540 states, 7220 states have (on average 1.2289473684210526) internal successors, (8873), 7388 states have internal predecessors, (8873), 3640 states have call successors, (3640), 521 states have call predecessors, (3640), 678 states have return successors, (6902), 3654 states have call predecessors, (6902), 3614 states have call successors, (6902) [2023-11-29 00:56:02,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11540 states to 11540 states and 19415 transitions. [2023-11-29 00:56:02,519 INFO L78 Accepts]: Start accepts. Automaton has 11540 states and 19415 transitions. Word has length 294 [2023-11-29 00:56:02,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:56:02,520 INFO L495 AbstractCegarLoop]: Abstraction has 11540 states and 19415 transitions. [2023-11-29 00:56:02,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 30.5) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (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 00:56:02,520 INFO L276 IsEmpty]: Start isEmpty. Operand 11540 states and 19415 transitions. [2023-11-29 00:56:02,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2023-11-29 00:56:02,527 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:56:02,528 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:56:02,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-29 00:56:02,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 00:56:02,728 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:56:02,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:56:02,729 INFO L85 PathProgramCache]: Analyzing trace with hash 439827948, now seen corresponding path program 1 times [2023-11-29 00:56:02,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:56:02,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976932735] [2023-11-29 00:56:02,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:56:02,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:56:02,873 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:56:02,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [170614033] [2023-11-29 00:56:02,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:56:02,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:56:02,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:56:02,874 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:56:02,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ebf8bb-3c9f-4dbb-8510-7ed0d2839f0f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 00:56:04,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:56:04,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 3657 conjuncts, 119 conjunts are in the unsatisfiable core [2023-11-29 00:56:04,114 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:56:04,147 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 00:56:04,149 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 00:56:04,151 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 00:57:02,045 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 00:57:02,049 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 00:57:46,270 INFO L134 CoverageAnalysis]: Checked inductivity of 615 backedges. 458 proven. 12 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-29 00:57:46,271 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:58:43,551 INFO L134 CoverageAnalysis]: Checked inductivity of 615 backedges. 33 proven. 22 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2023-11-29 00:58:43,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:58:43,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976932735] [2023-11-29 00:58:43,551 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:58:43,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170614033] [2023-11-29 00:58:43,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170614033] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:58:43,552 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:58:43,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-29 00:58:43,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152409589] [2023-11-29 00:58:43,552 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:58:43,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-29 00:58:43,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:58:43,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-29 00:58:43,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=2216, Unknown=23, NotChecked=0, Total=2450 [2023-11-29 00:58:43,556 INFO L87 Difference]: Start difference. First operand 11540 states and 19415 transitions. Second operand has 50 states, 48 states have (on average 4.291666666666667) internal successors, (206), 49 states have internal predecessors, (206), 24 states have call successors, (65), 6 states have call predecessors, (65), 10 states have return successors, (62), 21 states have call predecessors, (62), 24 states have call successors, (62) [2023-11-29 00:58:47,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:58:52,284 WARN L539 Checker$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 00:58:57,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:59:01,482 WARN L539 Checker$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 00:59:05,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:59:09,612 WARN L539 Checker$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 00:59:13,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:59:17,789 WARN L539 Checker$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 00:59:21,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:59:25,856 WARN L539 Checker$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 00:59:29,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:59:33,971 WARN L539 Checker$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 00:59:37,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:59:42,019 WARN L539 Checker$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 00:59:46,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:59:50,076 WARN L539 Checker$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 00:59:54,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 00:59:58,137 WARN L539 Checker$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 01:00:02,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:00:06,173 WARN L539 Checker$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 01:00:10,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:00:14,293 WARN L539 Checker$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 01:00:18,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:00:22,353 WARN L539 Checker$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 01:00:26,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:00:30,397 WARN L539 Checker$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 01:00:34,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:00:38,592 WARN L539 Checker$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 01:00:42,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:00:46,618 WARN L539 Checker$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 01:00:50,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:00:58,833 WARN L539 Checker$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 01:01:02,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:01:06,884 WARN L539 Checker$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 01:01:10,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:01:14,970 WARN L539 Checker$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 01:01:19,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:01:23,059 WARN L539 Checker$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 01:01:27,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:01:31,419 WARN L539 Checker$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 01:01:35,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:01:39,469 WARN L539 Checker$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 01:01:43,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:01:47,575 WARN L539 Checker$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 01:02:00,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:02:08,415 WARN L539 Checker$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 01:02:16,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:02:24,849 WARN L539 Checker$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 01:02:33,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:02:37,093 WARN L539 Checker$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 01:02:45,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:02:49,422 WARN L539 Checker$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 01:02:53,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:02:57,477 WARN L539 Checker$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 01:03:01,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:03:05,505 WARN L539 Checker$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 01:03:09,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:03:13,716 WARN L539 Checker$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 01:03:17,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:03:25,824 WARN L539 Checker$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 01:03:34,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:03:38,183 WARN L539 Checker$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 01:03:46,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:03:54,737 WARN L539 Checker$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 01:04:03,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:04:11,370 WARN L539 Checker$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 01:04:19,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:04:23,713 WARN L539 Checker$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 01:04:27,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:04:36,809 WARN L539 Checker$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 01:04:40,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:04:48,951 WARN L539 Checker$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 01:04:57,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:05:01,380 WARN L539 Checker$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 01:05:05,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:05:13,915 WARN L539 Checker$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 01:05:17,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:05:21,931 WARN L539 Checker$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 01:05:30,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:05:38,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]